Means of Access and Transport Appraisal

for

Land at Fields End, Hemel Hempstead, Herts, HP1 2JQ Grid Reference: 503055E, 207270N

Prepared on behalf of Taylor Wimpey Strategic Land, Barratt North London Ltd and Hertfordshire Property

May 2012 Reference: ST-2189/ATSA/1205-Fields End Revision 3

Means of Access, Transport and Sustainability Appraisal Land at Fields End, Hemel Hempstead

This report has been prepared by Stomor Ltd based upon information obtained from others. Stomor Ltd cannot be held responsible for inaccuracies in this information.

Drawings contained in this report are based upon information available at the time of production and serve to demonstrate that access can be suitably provided. The information produced by Stomor Ltd for this report should not be used as detailed design for construction purposes.

This report has been prepared for the Client for his sole and specific use. No professional liability or warranty shall be extended to other parties in connection with this report without the explicit written agreement of Stomor Ltd and payment of the appropriate fee.

Should the Client wish to pass copies of this report to others for information, the entire report should be copied.

Revision Author Checked by Issue Date 0 DGS NJM 23.05.12 1 DGS NJM 15.06.12 2 DGS NJM 23.07.12 3 DGS NJM 16.08.12

Ref: ST-2189/ATSA-1205-Fields End-Rev 3 i

Means of Access, Transport and Sustainability Appraisal Land at Fields End, Hemel Hempstead

CONTENTS

1. Introduction Page 1

2. Site Information Page 3

3. Site Inspection of Surrounding Road Network Page 4

4. Existing Public Transport and Other Facilities Page 8

5. Personal Injury Accident Records Page 10

6. Development Proposals Page 12

7. Means of Access Proposals Page 14

8. Current Traffic Flows on links and junctions Page 19 within the Study Area

9. Development Trip Generation and Distribution Page 22

10. Assessment Years and Growth Page 28

11. Discussion on Implications to the Wider Road Page 29 Network

12. Conclusions Page 42

Ref: ST-2189/ATSA-1205-Fields End-Rev 3 ii

Means of Access, Transport and Sustainability Appraisal Land at Fields End, Hemel Hempstead

APPENDICES

A Site Location Plan Drawing ST-2189-22

B Land Ownership Plan Number 4107 301

C Aerial View of the Site

D Highway Boundary Plans

E Personal Injury Accidents Details

F Means of Access Plans Drawing Nos. ST-2189-1-A and 23-B

G Stomor letter to Highway Authority 22nd March 2012, and confirmation of acceptable trip rates by the Highway Authority.

H Classified Traffic Count/Queues Drawings ST-2189-16, 17 and 28

I Stomor Drawing ST-2189-24 Year 2012 Arcady Runs - Junction 2

J Stomor Drawings ST-2189-11-A, 12, 13, and 14

K Stomor Drawings ST-2189-15, 18, 19, 20, 21

L Picady Runs – Junction 1

M Arcady Results – Junction 2

N Stomor Drawing ST-2189-25 – Junction 3

O Stomor Drawing ST-2189-26 – Junction 4 and 5 minis, feasibility Linsig Output and Drawing ST-2189-29.

P Stomor Drawing ST-2189-27-A – Junction 6

Ref: ST-2189/ATSA-1205-Fields End-Rev 3 iii

Means of Access, Transport and Sustainability Appraisal Land at Fields End, Hemel Hempstead

1. Introduction

1.1 Stomor Ltd has been commissioned by Taylor Wimpey Strategic Land, to undertake a means of access, transport and sustainability appraisal for land at Fields End, Hemel Hempstead, Herts.

1.2 This report will cover investigations associated with potential new residential and associated development at the site, including assessment of access arrangements available to serve the site from the surrounding road network.

1.3 The site is located in the Warners End and Chaulden areas to the west of Hemel Hempstead, south of Fields End Farm and north of the River Bulbourne. A site location plan is provided in Appendix A.

1.4 The site occupies an area of approximately 51 hectares, and incorporates three ownerships; Taylor Wimpey/Gardener Family, Barratt North London, and Hertfordshire County Council (HCC). Details are shown on Land Ownership Plan Number 4107 301. A copy of this plan is attached in Appendix B.

1.5 The site is expected to be developed primarily with residential housing up to 900 units. In addition, a 2FE primary school and community uses including a doctors surgery would be provided within the development. Significant areas of landscaping, open space and recreation areas will also be provided. An important factor to be considered is that the proposals are intended to make the best use of land, particularly within the green belt, in accordance with current government guidelines.

1.6 However, there are other factors mainly relating to the existing highway network which will have a significant effect on the actual practical achievable level of development. The following appraisal report will provide guidance into the level of development which could potentially be served from the surrounding road network.

1.7 It should be noted that except for the area of the site adjacent to Long Chaulden, the above investigations are based upon visual inspection of the site, and Ordnance Survey base data. A full topographical survey will be required to validate the layout of any of the improvement proposals provided.

1.8 Analysis of the site capacity has been carried out in relation to the feasible accesses into the site, and nature of the surrounding highway network. Indicative drawings have been prepared to demonstrate how the site can be accessed, along with any necessary

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improvement works required. In addition, our outline views will be given on the implication of the developments on the wider road network.

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2. Site Information

2.1 The site is greenfield in nature, and appears to be used for arable agricultural purposes. Trees and mature hedges are located around the boundary of the site. In addition, trees and hedges are located within the site which form various field boundaries

2.2 Long Chaulden abuts the eastern side of the site, Chaulden Lane abuts the south boundary, and Pouchen Lane abuts the west and northwest sides.

2.3 Various other roads approach the site along the eastern boundary, all of which serve various residential areas.

2.4 Hemel Hempstead Public Footpath 020 currently runs just within the site along the eastern boundary, linking areas to the south east of Long Chaulden through to Fields End Lane.

2.5 Hemel Hempstead Public Footpath 091 currently runs just within the site just to the north of Honeycross Road/Musk Hill. It then runs to the northwest linking to Pouchen End Lane on the west boundary of the site.

2.6 The site is currently accessed by various gated field entrances around the site for use by agricultural and maintenance vehicles only.

2.7 An aerial view of the site is attached in Appendix C.

2.8 Highway boundary plans have been obtained from Hertfordshire County Council, which demonstrate the extent of highway land associated with Long Chaulden, The Avenue and other locations along the eastern site boundary. Copies of these plans are provided in Appendix D.

2.9 The topography within the site is quite steep in nature. The highest level is approximately 155m AOD at the north side, falling to approximately 100m along the south boundary adjacent to Chaulden Lane. The average gradient from north to south is therefore approximately 1 in 22.

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3. Site Inspection of Surrounding Road Network.

3.1 Various site inspections have been undertaken to assess the current road network in the vicinity of the site. Generally, all the local roads in the vicinity of the site are subject to a 30mph speed limit restriction. However, a section of Chaulden Lane is national speed limit.

3.2 Long Chaulden abuts the east side of the site, over a length of about 105m, and is a 6.75m wide local distributor road which links between Warners End Road to the north east and Northridge Way to the south east. This road is subject to camera enforcement measures, implemented by mobile units on a regular basis. These measures are designed to discourage excess speeds along Long Chaulden.

3.3 Along the site frontage, wide footways are in place, and no parking restrictions or traffic calming measures exist. Along the sections of road beyond the site frontage, Long Chaulden has verges on both sides which have been paved to allow residents vehicles to be parked off the carriageway. As a consequence, the running carriageway of the road remains clear. 1.8m wide footways are in place behind these verges.

3.4 Towards the south east end of Long Chaulden, a school safety zone is in place, which covers the area between Honeycross and Cuttsfield Terrace. Chaulden Infant’s and Nursery School and Chaulden Primary School are located to the north east and Pixies Hill Primary School is located to the south. This zone includes 1m wide centre white ladder markings with red surfacing and associated centre refuges, an uncontrolled crossing and double yellow lines.

3.5 Various residential roads connect to Long Chaulden along its length via simple tee junctions. These include Green End Lane, Hollybush Lane, Roseheath and Newlands Lane to the north and Middle Hill, Jocketts Road, Honeycross Road, Lindlings, Hazeldell and Pixies Hill Road to the south.

3.6 The junction of Long Chaulden and Warners End Road to the north east of the site is a mini roundabout, which also connects with Northridge Way which runs to the south. A short distance westward from this junction, a further mini roundabout is in place, which connects to the southern end of Boxted Road. A controlled pedestrian crossing is located just to the west of this mini roundabout.

3.7 The junction of Long Chaulden with Northridge Way to the south east of the site is also a mini roundabout.

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3.8 Northridge Way runs north to south, effectively connecting between the two ends of Long Chaulden. This is a 6.75m wide road, of a very similar configuration to Long Chaulden, with residents’ car parking on hard, off-road verges with footways behind. However, some verges are grassed and some constructed of grasscrete, and several mini roundabouts are in place at junctions as well as tee junctions. There are a series of traffic calming features along this road, including mini roundabouts, central white ladder markings, 1m wide red strips which abut both road channels on the carriageway and white lines adjacent to the channels at some locations.

3.9 Towards the south end of Northridge Way, south east of Long Chaulden, a mini roundabout junction with Old Fishery Lane is present, which connects with Chaulden Lane. This road runs to the west, past the site south boundary of the site and connects with Pouchen End Lane further to the west.

3.10 The section of Chaulden Lane to the south east of the existing housing has a country lane feel, with hedges and trees immediately adjacent to both sides. The width varies between 4m to 4.8m, and it has been observed that vehicles such as transit vans need to stop and give way to oncoming vehicles. Passing places are present to the west of this section, and forward visibility is poor for drivers in places as they pass existing houses.

3.11 The section of Chaulden Lane just to the south west of the existing housing and south east of the development site is more open, with winding alignment and surface set down from the surrounding land to the north. The width is between 4m to 4.3m, and trees hedges are present to the south side. This section of road is subject to the national speed limit.

3.12 The western section of Chaulden Lane south of the development site as it approaches Pouchen End Lane becomes markedly more country lane in nature, with significant narrowing, dense shrubbery and trees present, poor visibility and passing places. The road has banks on the north side and is subject to national speed limit.

3.13 Pouchen End Lane is a very narrow single track country lane, abutting the western boundary of the site. To the south west, it runs under the railway via a 4.3m wide bridge. It then runs over a canal via a narrow bridge, and joins the A4251 to the south at a tee junction before joining the A41. Vision is poor to the right for emerging drivers at the junction between Pouchen End Lane and the A4251.

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3.14 At its south end, Northridge Way connects to a conventional 4 arm roundabout, which links to Fishery Road, St Johns Road and Green End Road. Fishery Road leads south to a roundabout on the A4251 London Road at Boxmoor. From this location, traffic can travel east via roundabouts/traffic lights to pick up the A41 or A4146/A414, or travel west via traffic lights to access the B4505 Box Lane and A41.

3.15 The Avenue approaches the development site at the north east corner. This is a 6.75m wide access road with wide grass verges and footways to both sides. This road has been designed with no residential frontages, so there is no significant on-road parking observed. There are no parking restrictions or traffic calming measures present, and the road is generally clear.

3.16 Inspection of the highway boundary plan based on OS data indicates that the end of The Avenue abuts the site boundary. However, further lines are shown either side of the dotted footway line just to the west. It will be important to compare the OS based land registry plan in order to check that there is no third party ownership between the end of The Avenue and the site.

3.17 Various residential cul de sacs connect to The Avenue along its length via simple tee junctions.

3.18 The north end of The Avenue connects to Boxted Road at a small 4 arm roundabout, which also caters for Warmark Road, a small residential development. To the north west, Boxted Road leads to Berkhamsted Road which runs to Potten End, Berkhamsted and the A41. To the south east, Boxted Road is 6.75m wide with verges and footways to both sides, and runs to the mini roundabout on Long Chaulden. Cars are observed to park off road on hard verges, so the carriageway is generally clear. Some central ladder markings are present with red surfacing, along with various other calming features such as mini roundabouts and central islands. A controlled pedestrian crossing is in place on Boxted Road to the north of its junction with Long Chaulden.

3.19 Warners End Road is a 6.75m wide local distributor road and runs to the east from its junction with Northridge Way, and connects with a large roundabout on Leighton Buzzard Road about 1.1km away.

3.20 This road has hard paved verges with footways behind on both sides of the road, and residents’ parking is off-road, leaving the carriageway generally clear. No particular traffic calming or parking restrictions appear to be in place along this road, but some 1m wide white ladder markings are in place along part of its length, with a mini roundabout

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located at Gadebridge Road. A controlled crossing is located to the west of Gadebridge Road.

3.21 The A4146 Leighton Buzzard Road roundabout provides a point where traffic can either run south to the town centre and St Albans, or north to Dunstable, Redbourn or Harpenden. The connection to the east is Queensway, which connects to the north east of Hemel Hempstead, including the industrial areas.

3.22 In addition to the roads described above, a residential road network is present along the eastern boundary of the site. This network affords further possibilities for vehicular and pedestrian/cyclist access.

3.23 It should be noted that the roads within this area are narrower than the local roads described above, with widths of around 5.0m. In addition, significant on-street residents’ parking occurs generally within these areas.

3.24 To the south east of the site, a short 5.5m wide spur road runs west from Campion Road and abuts the site boundary. This would appear to have been constructed in order to serve the HCC land parcel. Campion Road connects to Furze Road/Oldfield Road and then to Lindlings, which in turn connects to Long Chaulden via a simple tee junction. This spur road would appear to offer access possibilities for a limited amount of residential development.

3.25 Further roads which approach the site on its eastern side are Rowcroft and Ripley Way/Newlands Road to the north; and Musk Hill, and the west end of Lindlings to the south. Inspection of the highway boundary plans confirms that third party land lies between the ends of these roads and the site, and any access for vehicles or pedestrians/cyclists would be subject to negotiation. It has been confirmed by Dacorum Borough Council that the third party land at Rowcroft, Musk Hill, Lindlings and Ripley Way is owned by the Council.

3.26 Two sets of bus stops are located on Long Chaulden on either side of the road, to the north and south of the site frontage. To the north, the bus stops are situated about 20m and 80m from the site frontage. To the south, stops are located about 120m and 140m from the site frontage.

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4. Existing Public Transport and Other Facilities

Public Transport

4.1 There are currently two public transport services running close to the proposed development site. Services 2 and 3 run in opposite directions on a circular route between Woodhall Farm and Chaulden Terrace via the town centre, railway station, Gadebridge, Warners End, Highfield Grove Hill and Cupid Green. The buses run at intervals of 20-30 minutes on weekdays, 30 minutes on Saturdays and hourly on Sundays. These routes go via Long Chaulden and Boxted Road as far as the roundabout at the Boxted Road junction with The Avenue. The centre of the site is approximately 500 metres from the bus stops on Long Chaulden and 800 metres from the turning facility on Boxted Road.

4.1.1 In addition there is a morning and evening only peak period only service (H13) between the Maylands Industrial area and the railway station which runs along Long Chaulden every half hour.

4.1.2 Along Boxted Road there are further bus services. The 30/31 runs during the morning and evening peak periods between Berkhamsted and Hemel Hempstead town centre whilst the 532 operates three times a day in the off peak period between Hemel Hempstead and Northchurch.

Cycling and Pedestrians

4.2 Each of the roads close to the site including Long Chaulden, Boxted Road, Warners End Road, Northridge Way and The Avenue have footways of adequate width along each side.

4.3 Along Long Chaulden a controlled crossing is in place just to the west of its mini roundabout junction with Boxted Road. On Long Chaulden to the south east of the site, an uncontrolled crossing is in place, with centre refuge islands.

4.4 There are no specific facilities in the immediate area which specifically cater for cyclists such as cycle lanes or controlled crossings.

4.5 The centre of the proposed development site is located at the following walking distances from facilities:-

Within 1km of the site; i) Secondary School – John F. Kennedy (Catholic School) north east of site.

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ii) Junior School – Chaulden Junior School south east of the site. iii) Primary School – Pixies Hill Primary School south east of the site. iv) Infant and Nursery School – Chaulden Infant and Nursery School south east of the site. v) Recreational – Northridge Park east of the site. vi) Recreational – Shrub Hill Common east of the site. vii) Recreational – Watercress Beds Playing Fields south east of the site. viii) Local Amenities – Post Office, Doctors’ Surgery, Chemist, local shops. ix) Several Churches are located within 1km to the site.

Other facilities just beyond 1km of the site include; i) Local Amenities – Dentist, Tesco Express, other local shops. ii) Primary School – Micklem Primary School east of the site. iii) Kindergarten – Play Plus Kindergarten south of the site. iv) Recreational – Camelot Rugby Club located south east of the site.

4.6 At present, there would not appear to be any formal Sustrans strategic cycle network routes in the area. However, a formal cycle route, the ‘Nicky Line’, is located approximately 2.3km to the north east of the site, which runs in a north easterly direction towards Harpenden. The route is 8 miles long. There are also informal cycle routes located south of the site along the Grand Union Canal.

4.7 It is recommended that any development sites should incorporate a network of new cycle routes within the development linking to existing bridleways, foot/cycleways and the like. Consideration should also be given to implementation of new foot/cycleways or cycle lanes on roads surrounding the site to link the key facilities and employment areas.

Rail Links

Hemel Hempstead Station is located approximately 1.8 km to the south east of the site from where it abuts Long Chaulden. The station forms part of the London Midlands Train railway network and links London with Watford, Milton Keynes, Northampton and the West Midlands at regular intervals. Current bus services 2, 3 and H13 all stop at the railway station.

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5. Personal Injury Accident Records

5.1 Over sixty personal injury accidents occurred throughout the Chaulden area in the five year period to March 2006 and the road has been part of the County Council’s recent Safety Engineering and Casualty Reduction Programme. A variety of pedestrian crossings, raised tables and a mini roundabout were introduced in 2010 to improve drivers’ awareness of the road layout, reduce vehicle speeds and assist pedestrians to cross the road.

5.2 The most recent accident data for the area in the vicinity of the site has been obtained from Hertfordshire Highways for the period 1st December 2006 – 30th November 2011. The accident data indicates that a total of 13 PI accidents have occurred in the vicinity of the site. Details are provided in Appendix E. This is a considerable improvement over the previous conditions.

5.3 The Hertfordshire Highways accident data signifies that no accidents have occurred adjacent to the site boundary where it abuts Long Chaulden.

5.4 Two slight PI accidents have occurred to the south of the entrance to the site, located between the junctions of Lucks Hill and Rowcroft onto Long Chaulden. An accident occurred at the immediate junction of Lucks Hill and Long Chaulden where a vehicle carrying three children travelling north along Long Chaulden impacted with a vehicle pulling out of Lucks Hill. The other accident was located approximately 35m north of the junction of Rowcroft and Long Chaulden. The accident was caused when a vehicle emerging on to Long Chaulden from Rowcroft collided with a parked vehicle.

5.5 Further southeast from the site entrance, a slight PI accident occurred 8m southeast of the junction of Hazeldell Road and Long Chaulden, outside the Tudor Rose PH. The accident was caused when a vehicle pulled out of the pub car park and impacted with a pedestrian. The pedestrian sustained ‘slight’ injuries.

5.6 Between the junctions of Pixies Hill Road and Cuttsfield Terrace onto Long Chaulden two slight PI accidents have occurred involving cyclists. Approximately 7m southwest of Pixies Hill Road junction an accident occurred when a cyclist travelling along Long Chaulden sustained slight injuries after colliding with the nearside of a vehicle pulling out of Pixies Hill Road. Similarly, at the junction of Cuttsfield Terrace and Long Chaulden, a cyclist was slightly injured after a collision with the offside of a vehicle turning right at the junction onto Long Chaulden.

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5.7 At the mini roundabout junction of Long Chaulden and Northridge Way, two slight PI injuries have occurred.

5.8 A slight PI accident has occurred approximately 8m east of the junction of Long Chaulden and Ravensdell, when a vehicle collided into a reversing vehicle.

5.9 In close proximity to the junction of Long Chaulden and the east entrance to Varney Road, accident data indicates that two slight PI accidents have occurred. Approximately 28m west of the junction a ‘serious’ accident occurred when toddler was injured when exiting a public bus. Approximately 50m east, a further accident has occurred when a vehicle pulling out of a layby on Long Chaulden collided into the rear of a vehicle waiting to turn right onto Hollybush Lane.

5.10 An accident has also occurred at the entrance to the car park off Long Chaulden for a shopping precinct located 5m northwest of the junction with Stoneycroft.

5.11 At the shopping precinct car park adjacent to Boxted Road, a fatal accident occurred when a vehicle reversed into a pedestrian.

5.12 At the mini roundabout junction of Warners End Road, Boxted Road and Long Chaulden a slight PI accident occurred when a car entering the roundabout from Long Chaulden collided with the offside of a vehicle turning right at the roundabout.

5.13 It is also noted that a number of slight accidents have occurred further afield, the majority along Northridge Way. A ‘serious’ accident has also occurred along Boxted Road, north of the junction with Peartree Road.

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6. Development Proposals

6.1 The site covers an area of approximately 51 hectares and the proposal is for it to become an Urban Extension of residential dwellings and associated uses in line with the Council’s emerging Core Strategy, including provision of a primary school, doctors surgery and community uses.

6.2 The proposals are at an early stage, and will be progressively determined through a detailed site layout exercise. The site will be developed primarily with residential housing of up to 900 units. In addition, a 2FE primary school and community uses including a doctors surgery would be provided within the development.

6.3 At this stage, the composition of the proposed residential part of the site is not known. It may however be assumed that there will be a broadly uniform distribution of houses with 2, 3 and 4 bedrooms on two or three levels of which approximately 40% will be ‘affordable homes’. The housing will be located fairly evenly throughout the site, along with significant areas of public open space and structured landscaping.

6.4 In order to maximise the sustainability credentials of the site, it is envisaged that the proposed primary school and nursery will be located approximately midway along the eastern site boundary, in the vicinity of Long Chaulden. This will not only locate the school in the optimum position for the potential pupil catchment within the site, but will also position it centrally adjacent to current housing areas to the west.

6.5 It is expected that the community facilities will also be located in a similar area.

6.6 Within the site, a suitable network of roads will be provided in accordance with the latest edition of the Hertfordshire Design Guide, and be to the appropriate level in the hierarchy. These roads will be arranged to generally discourage general through traffic between Long Chaulden and The Avenue, although a dedicated bus link may be considered to be appropriate.

6.7 Operators would be encouraged to provide public transport services into and through the site but measures (such as bus gates) may be put in place to prevent private cars using the two access roads to ‘rat run’ through the residential area, if rat running is considered to be an issue.

6.8 A network of footways and cycle routes will be provided within the site, with appropriate links to the external networks as appropriate, in order to maximise the opportunities for sustainable travel modes wherever practicable. These may include links not only to the

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main points of access, but to the residential network to the east of the site. Shared footway/cycleways would also be provided to enable access to the school and the community uses. This should encourage downward pressure on car use where possible.

6.9 In order to disperse site generated vehicular traffic, we will consider three points of access to the site, including Long Chaulden, The Avenue and the Campion Road spur road. Appropriate levels of development will be allocated to each, with the shape of the proposed internal road network having an influence on achieving these allocations. Further details of the proposed access options are described in more detail in the next section of the report.

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7. Means of Access Proposals

7.1 As described above, for the purposes of this appraisal, a minimum of three vehicular accesses will be considered to cater for the development at the site. In addition, other options will be explored, including possible routes which could cater for cyclists and pedestrians only.

7.2 Drawing Number ST-2189-23-A has been prepared which gives an overview of the options available, and is attached in Appendix F.

7.3 It is considered that a loop road of 6.75m width is likely to be required within the site, in order to cater for a suitable bus route in the future. In addition, a further access road is required to serve development in the southern portion of the site. Inspection of the preliminary internal road network and surrounding roads shows that the majority of site traffic is likely to utilise the Chaulden Road access, including traffic from the southern half of the loop, as the external choice of routes and destinations is more convenient to drivers from these areas. This part of the site covers an area of about 34ha. Drivers from the development in the northern half of the loop road are likely to use The Avenue, as this would be a more convenient exit and exit route around this location. This part of the site covers an area of about 15ha. The smaller area to the south, served by Campion Road, would not be connected the rest of the internal site development. The area served here is about 2ha.

7.4 It is considered that due to the level of development proposed, there should be a road link through the site, which would facilitate a future bus link, benefit circulation and provide an alternative access in the event of an emergency or potential future roadworks etc.

7.5 Consideration has been given to the relative merits of using such potential vehicular accesses as Lindlings, Musk Hill or Rowcroft as opposed to The Campions. It is clear that The Campions is a purpose built spur, with adequate width and associated footways. However, as discussed in this report, we have not ruled out their use as possible development access points. If such access points are used, this would not have a material effect on the overall trip assignment or trip distribution.

7.6 The potential distribution of development traffic from the two primary proposed accesses, and the more restricted The Campions access is dealt with in more detail in Section 9 of this report.

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7.7 Reference has been made to the Hemel Hempstead Urban Transport Model report; LDF Option Western Hemel, prepared in 2010 by Steer Davies Gleave. This report refers to the likely site access road scenario, and allows for two primary accesses, one at Long Chaulden between Newlands and Middle Hill and one at The Avenue connecting to Boxted Road. This is compatible with the primary access proposals referred to in this report.

i) Long Chaulden

A junction at this location is proposed to be the primary vehicular and pedestrian access which would serve the site. A ghost island right turning facility is proposed, and Drawing ST-2189-1-B has been prepared to demonstrate that this is a feasible option in technical terms. A copy of this drawing is attached in Appendix F.

It can be seen from this drawing that the site access road is proposed at 6.75m wide, which is an appropriate standard for a potential bus route, and is compatible with the width of Long Chaulden. Two no. 3.5m running lanes and a 3.0m wide turning lane are proposed on Long Chaulden, achieved by appropriate tapers on both approaches. Vision splays of 4.5m x 90m are provided, which meet required standards.

In the event that a more significant junction is needed, it would be possible to provide a roundabout junction at this location if necessary. However, it should be borne in mind that this would be more intrusive, particularly with respect to lighting, and will take more land.

Appropriate pedestrian and cycle links would also be provided at this location to link with the site. At this stage it is anticipated that a segregated foot/cycleway link will be provided to link directly to the proposed school and community facilities. This should be positioned away from the main vehicular access to allow provision of a signal controlled crossing for school pupils and community users.

ii) The Avenue

It is proposed to continue The Avenue and its associated footways into the site at its current width of 6.75m, as indicated on Drawing ST-2189-24. This would allow sufficient width for buses if these were to be routed along this road.

Appropriate pedestrian and cycle links would also be provided at this location to link with the site.

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iii) Campion Road Spur

This spur road is 5.5m wide, and runs west from Campion Road and abuts the HCC site boundary.

It is proposed to utilise this access for vehicles and pedestrians to serve a restricted number of dwellings, bearing in mind the nature of the adjacent residential roads such as Furze Road, Oldfield Road and Lindlings, which are about 5m wide with residential on-street parking.

iv) West of Ripley Way/Newlands Road

A grassed corridor with narrow footways to both sides is in place at this location which would appear to link between the eastern site boundary and Myrtle Green. This land is not highway and would appear to serve numbers 29-47 Newlands Road. Bearing in mind the land is in Dacorum Borough Council ownership, it may be possible to form a foot/cycleway link from the site to Newlands Road/Long Chaulden. However, this may not prove necessary due to the fairly close proximity of The Avenue to the north and Long Chaulden to the south. It is unlikely that a vehicular connection would be necessary at this location, due to the proximity of other site roads, and in any event, the probable felling of a mature Oak tree would be required.

v) Rowcroft

A grassed corridor similar to the above but narrower with narrow footways to both sides is in place at this location which would appear to link between the eastern site boundary and Rowcroft. This land would appear to serve numbers 2-12 and 27-35 Rowcroft. Again, bearing in mind the land is in Dacorum Borough Council ownership, it may be possible to form a foot/cycleway link from the site to Long Chaulden. This may be useful as a more direct connection to the south east towards the south of the town and railway station. A vehicular connection may be possible at this location, but would only be suitable for an extremely low number of dwellings. The link between Rowcroft and Long Chaulden is quite short and direct, but the road is narrow (about 5m) and has residents parking to both sides. However, most residents park on hard verges off-road. Provision of a road would probably necessitate the felling of mature trees.

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vi) Musk Hill

This narrow road is about 4m-4.5m wide with narrow footways to both sides, and stops just short of the development site boundary. This road appears to serve numbers 1-10 Musk Hill. It may be possible to form a foot/cycleway link from Footpath 091 in the site to Honeycross Road, which forms a direct connection to Long Chaulden. A vehicular connection could be problematic at this location, due to the narrow road width and on- street parking. Provision of a road would probably necessitate the felling of mature trees.

vii) West end of Lindlings

The west end of Lindlings also approaches the site boundary, and Dacorum Borough Council land lies between. It may be possible to form a foot/cycleway link from the site to Lindlings, which forms a direct connection to Long Chaulden. A vehicular connection would appear to be technically feasible for a limited number of units, but Lindlings is only about 5m wide, with some residents parking is present. It is considered that this possible location is a better prospect that Musk Hill. Revised priorities at the junction between Honeycross Road and Lindlings may need to be considered.

viii) Chaulden Lane

As previously described, Chaulden Lane is “Country Lane” in nature, and is not considered suitable for vehicular access to the site. This road is narrow, has poor visibility and no associated footways where it abuts the site, even to the east of the frontage. It will be necessary to consider whether an emergency vehicular access on to this road is required and this would need to be located along the HCC frontage, where vision may be available. It is difficult to see how a safe means of pedestrian/cycle access to/from the site is possible direct from the southern site frontage. However, a pedestrian route exists which runs from the Campion Road Spur, east along Sundew Road and then south connecting to Chaulden Lane to the east of the southern site frontage. This access point is then a short walk/cycle to an existing off road footway in the playing field to the south east. The south of the town and station is then a short walk away. It is noted that the small hamlet of Winkwell is situated just to the south west of the site. It would be possible to form an exit from the site to Chaulden Lane, which would enable pedestrians or cyclists to use this road to gain access to the hamlet, Grand Union Canal and the A4251 beyond via Pouchen End Lane and Winkwell Lane. However, there are

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no footpaths associated with these roads, and they are very narrow with winding alignments. The possible route is marked on Drawing Number ST-2189-23-B.

ix) Pouchen End Lane

This lane is little more than a farm track, and although it abuts the site on its western boundary, no direct vehicular access will be provided on to this road whatever the final proposals. Public Footpath 91 crosses the site between Musk Hill and Pouchen End Lane, and the connections at each end to the adjacent areas will be retained under the development proposals.

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8. Current Traffic Flows on links and junctions within the Study Area

8.1 A meeting has been carried out with the Highway Authority in order to determine their requirements in relation to the scope of this report, which will provide supporting information for the forthcoming core strategy submission.

8.2 Details of the above are contained in Stomor Ltd’s letter dated 22nd March 2012, and includes preliminary residential trip rates to be applied and the junctions to be analysed. A copy of this letter is attached in Appendix G.

8.3 The junctions to be considered at this stage include the following:- a. Junction 1 - Long Chaulden between Newlands Road and Middlehill for the AM and PM peak periods. b. Junction 2 - The Avenue/Boxted Road roundabout for the AM and PM peak periods. c. Junction 3 - Long Chaulden junction with Northridge Way for the AM and PM peak periods. d. Junction 4 - Long Chaulden junction with Boxted Road for the AM and PM peak periods. e. Junction 5 - Warners End Road junction with Northridge Way for the AM and PM peak periods. f. Junction 6 - Leighton Buzzard Road roundabout junction with Warners End Road and Queensway for the AM and PM peak periods.

8.4 Classified traffic counts were carried out at these junctions on 27th March 2012. The raw traffic data has been extracted, and flows shown at the various locations on Drawing Numbers ST-2189-16 and 17 are attached in Appendix H.

8.5 Site inspections were also carried out on the day of the traffic counts in the AM peak period, in order to visually assess the level of queuing which takes place at the above junction locations. This exercise was carried out in order to enable us to prepare and validate the Picady/Arcady runs for the various scenarios to be tested. A copy of Drawing Number ST-2189-28 showing the maximum queues observed is attached in Appendix H.

8.6 Whilst the general road network was observed to be busy in the peak hours, queuing appeared to be fairly light, although southbound queuing at the Leighton Buzzard Road roundabout was observed to build up for brief periods during the AM peak hour.

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Observations indicated that this queuing was due to uncertainty and poor lane discipline on the approach, which resulted in left turning vehicles being blocked by straight through movements and right turners. However, this queue was noted to dissipate quite quickly.

8.7 Outside of the peak hours traffic flows appeared to fall away significantly, and were easily accommodated on the local road network.

8.8 The existing flows along Long Chaulden adjacent to the proposed site primary access point Junction 1 in the AM peak hour are 231 southbound and 205 northbound, giving a two way flow of 436 vehicles. For the PM peak hour, flows are 247 southbound and 233 northbound, giving a two way flow of 480.

8.9 The existing flows along The Avenue to the south of the existing roundabout Junction 2 in the AM peak hour are 44 southbound and 225 northbound, giving a two way flow of 269 vehicles. For the PM peak hour, flows are 147 southbound and 60 northbound, giving a two way flow of 207.

8.10 In order to initially put the current flows into perspective, TA 79/99 ‘Traffic Capacity of Urban Roads’ has been consulted, which gives an indication of flow capacities for different road categories. Both Long Chaulden and The Avenue are 6.75m wide roads, and are not subject to on-street parking of traffic calming measures. Based on Tables 1 and 2 of this document, we would consider that both of these roads would easily fall into the UAP3 category, and probably perform more in line with a UAP2 road. For a UAP3 road, the maximum suggested flow in one direction would be 1110 vehicles (60%). This would indicate a flow in the opposite direction of 740 vehicles (40%), giving a two way flow of 1850 vehicles. From the above information, it can be seen that the current flows lie well within the environmental capacity of these two roads in the vicinity of the site.

8.11 A preliminary Arcady run has been carried out for Junction 2 above under current 2012 AM and PM peak traffic flow conditions. This is based on Stomor Drawing ST-2189-24. This drawing and Arcady results are attached in Appendix I. This shows that the maximum Ratio of demand Flow to junction Capacity (RFC) generated is 0.48, which generates a queue of less than 1 vehicle. The maximum Level Of Service (LOS) column shows that this lies in Category A, which indicates Free Flow conditions. The following table gives the definition of the various LOS scenarios as follows:- A Free Flow B Reasonably Free Flow C Stable Flow D Approaching Unstable Flow

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E Unstable Flow F Forced or Breakdown Flow

8.12 Therefore, there are no current issues relating to the area of Long Chaulden in the vicinity of proposed Junction 1, or at the Junction 2 roundabout at The Avenue.

8.13 With regard to the road network in the vicinity of Junctions 3 to 5, all the roads are of a similar nature and width. However, the Warners End Approach to Junction 6 is approximately 7.3m width. Inspection of the current traffic flow drawings ST-2189-16 and 17 indicate that the current flows lie within the link capacities.

The below table summarises the current flows at various locations on the local network:-

Existing 2012 Flows TA 79/99 Location AM Peak Flow PM Peak Flow (UAP3 Road Category) To South – 231 To South – 247 1100 – (60%) Long Chaulden adjacent To North – 205 To North – 233 740 - (40%) to site access Total - 436 Total - 480 Total 1850 To South – 44 To South – 147 1100 – (60%) The Avenue To North – 225 To North – 60 740 - (40%) Total - 269 Total - 207 Total 1850 Long Chaulden to east of To East– 843 To East – 605 1100 – (60%) Junction 5 and west of To West – 497 To West – 797 740 - (40%) Junction 5 Total - 1340 Total - 1402 Total 1850 To East– 716 To East – 568 1100 – (60%) Warners End Road to To West – 434 To West – 681 740 - (40%) east of Junction 5 Total - 1150 Total - 1249 Total 1850 To East– 931 To East – 500 1300 – (60%) Warners End Road to To West – 651 To West – 1021 867 - (40%) west of Junction 6 Total - 1582 Total - 1521 Total 2166 To South– 701 To South – 571 1100 – (60%) North Ridge to south of To North – 467 To North – 764 740 - (40%) Junction 3 Total - 1168 Total - 1335 Total 1850

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9. Development Trip Generation and Distribution

9.1 Stomor Ltd have reviewed reports which were carried out to assess various residential development proposals for the Fields End site over the past six years. The latest proposals include a new primary school, doctors surgery and community uses. These facilities clearly increase the sustainability credentials of the site and have a beneficial downward effect on the overall trip generation rates.

Residential Trip Generation

9.2 Two way trip rates previously used in the above reports vary from between 0.57 to 0.95 in the AM peak and 0.58 to 1.012 in the PM peak.

9.3 Inspection of the TRICS database for private residential houses shows the following results:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

0.161 0.422 0.583 0.393 0.236 0.629

9.4 It should be noted that it is expected that 40% of the housing will be affordable homes. This is likely to have the effect of downward pressure on the trip rates for the development.

9.5 In consideration of the above, an assessment of the likely generation and distribution of the traffic associated with the new developments has been carried out. Trip generation for the residential development has been determined by the above TRICS database results and inspection of rates used in previous studies. The following trip rates are as described in the Stomor letter to the Highway Authority on 22nd March 2012:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

0.2 0.5 0.7 0.4 0.25 0.65

9.6 These trip rates are in excess of the TRICS database values, and are considered robust and reasonable given the facilities provided on the site. The Highway Authority have confirmed that the trip rates proposed are acceptable, and a copy of their email confirming this is attached in Appendix G.

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9.7 Based on 900 residential dwellings, the following numbers of vehicles are generated as follows:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

180 450 630 360 225 585

School Trip Generation

9.8 Trip generation in the AM peak hour of the 2FE primary school is based on a school roll of 420 pupils and 30 in the nursery, giving a total of 450 pupils.

9.9 Using data obtained from studies of other schools in Hemel Hempstead such as Tudor Primary and Hammond Primary, the following table shows the approximate distribution of pupils for different distance bands:- Distance Band % of pupils Number of Pupils 0km – 0.5km 48 216 0.5km – 1km 28 126 1km – 2km 15 68 Over 2km 9 40 Total 100 450

9.10 Overall, this would generate the following pupil related cars in the AM peak hour as follows:- Distance Band Car generation No of Pupils % by car Number of cars 0km – 0.5km 0% - 5% 216 2 4 0.5km – 1km 10% – 15% 126 10 13 1km – 2km 50% - 60% 68 55 37 Over 2km 90% - 100% 40 95 38 Total 450 92

9.11 The above table indicates that the pupil car trip generation equates to about 20% of the pupil roll, which is reasonable bearing in mind the accessibility and tight catchment associated with the school.

9.12 Drawing Number ST-2189-11-A has been prepared, which shows the above distance bands relating to the school site and the likely percentage assignment of cars to the

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school in the AM peak period, and is attached in Appendix J. It can be seen that within each distance band, percentages of school car trips made by pupils is assigned to the internal estate roads or primary accesses either at Long Chaulden or The Avenue. The sum of the percentages in each distance band equates to 100%. For example, in distance band 0.5km-1km, of the 13 vehicles total, 10% is assigned to The Avenue 85% assigned to Long Chaulden and 5% assigned from internal site roads to the south of the site.

9.13 With respect to school staff, it is anticipated that 42 would arrive at the site in the AM peak hour, of which about 34 would arrive by car, based upon observations at other schools.

Other Trip Generation

9.14 Trip generation related to the local facilities is expected to be very low in the AM and PM peak hours. Based on a trip rate of 10% of 900 units with 20% travelling by car, this gives a flow of about 18 vehicles inwards. Departures are estimated to be about 5 vehicles.

Traffic Distribution

9.15 The distribution of site generated residential traffic has been allocated to the three points of access serving the site which have been described in previous sections of this report. It is considered that a significant proportion of housing development to the north and centre of the site would utilise the access provided on Long Chaulden, with traffic to the north of the site tending to use The Avenue. Due to the nature of the residential roads around Campion Road, it is envisaged that only a limited number of units should be proposed off the spur road at this location. At this stage, we propose the following for the purposes of assessment, based upon the areas of development associated with each of the three proposed access points and the likely easiest routes for drivers:- Associated Number Access Point % allocated Area (ha) of Units The Avenue 28.7 14.5 258 Long Chaulden 66.9 33.8 602 Campion Road 4.4 2.2 40 Spur Total 100 50.5 900

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9.16 At this stage, this scenario is considered reasonable for a robust assessment to be carried out for site allocation purposes, and will be refined as more detailed development proposals emerge in due course.

9.17 With regard to the 2FE primary school, as this is likely to be located in the vicinity of the Long Chaulden access, it is envisaged that the majority of vehicles will use this access point. However, some vehicles will arrive via The Avenue from the north of the site.

9.18 The community uses will be provided to serve the local area, and for this assessment, we have assumed 100% of associated traffic would utilise Long Chaulden.

9.19 Data has been obtained from the Office for National Statistics; Neighbourhood Statistics, for distances travelled to work by local people in the Chaulden and Warners End Wards of Hemel Hempstead. This data has been used as a basis for the likely distribution of residential traffic generated by the development around the local road network.

9.20 The following table gives the Census data based on the above:- Distance travelled to/from Percentage % Number of people work Less than 2km 17.5 390 2km – 5 km 37.2 827 Over 5km 45.3 1008 Total 100 2225

9.21 It is clear that people who live closer to their place of work, particularly within the 0-2km band, will have the best opportunity to use other forms of transport rather than the private car. Therefore, based upon the likely distances travelled to work, the following table shows the predicted number of cars generated from the site travelling within each distance band:- Number of Number % likely to x450 (site Distance band people in likely to % drive related) census drive Less than 2km 390 60 234 13 59 2km – 5 km 827 80 661 36 162 Over 5km 1008 95 958 51 229 Total 2225 100 450

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9.22 In the less than 2km band, residential traffic from the Long Chaulden access is allocated 50/50 to the north and south, which allows for traffic either travelling north to Mylands and Buncefield industrial area or south to the rail station and town centre. There may be possible losses prior to traffic reaching Leighton Buzzard roundabout due to general distribution, rat runs, destinations etc. At the junction with The Avenue/Boxted Road, residential traffic is distributed 10% westward and 90% eastward.

9.23 In the 2km – 5km band, it is assumed that 60% travel to the north side of town towards major employment areas and to avoid the Plough Roundabout. Few are assumed to travel by train within this band. At the junction with The Avenue/Boxted Road, residential traffic is distributed 15% westward and 85% eastward.

9.24 It is considered that residential traffic accessing strategic routes over 5km from the site would be well distributed in all directions. These routes would include the A4146, B487 and A4147 travelling north to Leighton Buzzard, Harpenden, Luton and Dunstable, and the M1, A41 and M25 to the south. The A414 and M1 Junction 7/8 are located to the east which connect with St Albans and Hatfield, and the A41 runs west towards Berkhamsted, Tring and Aylesbury. In the light of this, residential traffic in this band is allocated 50/50 to the north and south from Long Chaulden. At the junction with The Avenue/Boxted Road, residential traffic is distributed 20% westward and 80% eastward. It is assumed that approximately 5% will travel by bus or rail, with additional rail commuters driving to the station.

9.25 For the purposes of this assessment, incoming residential vehicles are assigned in similar proportions to outgoing traffic.

9.26 The above distribution of future residential traffic is proposed in order to enable a robust assessment of the likely performance of primary junctions located around the site, and to demonstrate that they will be capable of catering for future traffic either with or without improvements. It is fully appreciated that as traffic flows increase in the future, it is possible that some drivers will modify their routes to utilise less congested roads if possible.

9.27 Routes such as Galley Hill connect Boxted Road with Leigthon Buzzard Road further to the north, and may attract some vehicles from The Avenue and possibly Long Chaulden. The assessment has been carried out to test key junctions such as the double mini roundabouts at Boxted Road and Northridge Way and the Warners End/Leighton Buzzard roundabout. Use of the Galley Hill route may effect a modest traffic reduction at the above junctions. However, this report tests a scenario to demonstrate that the

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above junctions could cater for the full potential flows in the future, even if drivers do not choose alternative routes.

9.28 Green End Lane or Hollybush Lane may also be considered as alternative routes by motorists. However, based upon the above discussion, we have accounted for this traffic within the key junctions in order to ensure a robust assessment.

9.29 In relation to the primary school distribution, the OS plans for the local area have been inspected, and incoming traffic assigned along the likely routes from each distance band as described above. Drawing Number ST-2189-11 has been prepared, which is attached in Appendix J. The parent related vehicles are assumed to exit the school along similar routes as incoming, and staff are assumed to remain.

9.30 Based upon all the above parameters, Drawing Numbers ST-2189-12, 13, and 14 have been prepared, which show the proposed housing development flows, proposed school and community uses flows, and total AM development flows respectively. These are also attached in Appendix J.

9.31 With respect to the PM peak scenario, the appropriate trip generation rates have been applied for the 900 residential units as described in previous sections of this report. For the purposes of this report, the resulting traffic has been assigned in similar proportions to the AM traffic. The relatively light community use traffic expected in the AM peak as described previously will be added to the PM peak development flows

9.32 Drawing ST-2189-15 has been prepared showing these traffic flows, and is attached in Appendix K.

9.33 As the school will close at around 3:15 PM, traffic associated with this use is not included in the 5:00-6:00 PM peak assessment.

9.34 Overall, it is considered that the proposed assignment and distribution of future traffic described in this report represents a robust basis for junction appraisal, to demonstrate that the proposed development of up to 900 houses and a school are deliverable and suitable for allocation, subject to future more detailed transport assessment as the actual development proposals emerge.

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10. Assessment Years and Growth

10.1 The growth in background traffic is commonly estimated by the application of the National Road Traffic Forecasts (NRTF), adjusted locally by the Trip End Model presentation PROgram (TEMPRO) database. Hertfordshire County Council has its own local forecasts which are available in the latest Hertfordshire Traffic and Transport Data Report (2009) published in August 2010.

10.2 Using 2012 as the base year the forecasts in the report show an increase in traffic in Dacorum of 8.56% by 2021. Using Tempro 6.2, Eastern Region, the increase in traffic is identified as 8.42%, which is reasonably comparable. The HCC data report does not go beyond 2021, so Tempro 6.2 has been referred to for 2031, giving an estimated increase of 16.4% by 2031.

10.3 It is considered that the introduction of the proposed Fields End Development on an ongoing basis up to Year 2031 would represent the likely growth in flows along Long Chaulden, The Avenue and Lindlings. However, developments elsewhere in Hemel Hempstead and further afield would be likely to form a significant part of Tempro growth up to Year 2031 as described above. We have therefore added the full Tempro growth rates to existing flows along Boxted Road, Long Chaulden to the east of Junction 4, Warners End Road, Northridge Way and the roundabout junction between Warners End Road, Queensway and Leighton Buzzard Road. This scenario is therefore considered to be robust as we have assumed continuous full growth up to Year 2031. It should be borne in mind that the actual growth which would actually occur over such an extended timescale is by no means certain and could be more or less than presently anticipated.

10.4 During several visits to the site and surrounding area, it was noted that traffic seemed to flow reasonably freely in the AM and PM peak hours in the immediate vicinity of the envisaged site accesses. However, it was observed that general network became quite busy slightly further afield in the AM peak period, and it was noted that as shown on Drawing Number ST-2189-28, queues formed on the southbound approaches to Junction 4 (11 vehicles) and Junction 6 (occasionally 40-50 vehicles), and on the eastbound approach to Junction 6 (12 vehicles).

10.5 These observed queues ebbed and flowed, and would sometimes disappear altogether for brief periods before building up again.

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11. Discussion on Implications to the Wider Road Network

11.1 Reference has been made to the Hemel Hempstead Urban Transport Model report; LDF Option Western Hemel, prepared in 2010 by Steer Davies Gleave. This report refers to development of the Fields End site at levels of 450 dwellings by Year 2021, and 900 dwellings by Year 2031. It also refers to the Marchmont Farm development with 380 dwellings by Year 2021.

11.2 The conclusions of this report included the following:-  Generally, the traffic impacts of the Western Hemel developments on the wider road network would be minimal in Year 2021 in both the AM and PM peak hours. However, some minor localised queuing is expected on the Boxted Road area around Junctions 4 and 5.  In Year 2031, development traffic had a more significant effect on the wider network, causing lower network speeds.  The localised queuing problems around Boxted Road were magnified in Year 2031, but still not a serious issue.  No significant problems are envisaged in the Year 2031 in the PM peak.  In the Year 2031 AM peak, serious queuing was identified at the Leighton Buzzard Road roundabout, Junction 6, in the AM peak.

11.3 A sensitivity test was carried out as part of the report, which included for half the proposed increase in housing at the Fields End site between Year 2021 and 2031, a total of 675 units. Flow breakdown did not occur under this scenario.

11.4 The report gives an indication of potential traffic problems that could occur, and does not include the effects of any junction or network improvements to mitigate the effects of the development.

11.5 In order to carry out a preliminary assessment of adjacent road capacities and possible improvement options related to the effects of developing the site, it is necessary to consider the following parameters and issues:- i) Considerations such as junction type, road type, widths, vision, parking, traffic calming etc. ii) Level of traffic currently using the adjoining roads, future growth and level of development of the sites in terms of dwelling numbers etc.

11.6 Section 9 above has described the trip generation envisaged as a result of the development proposals, and growth to Year 2031 has been estimated in Section 10.

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Further traffic flow diagram drawings have been prepared, numbers ST-2189-18, 19, 20 and 21. These show AM and PM peak flows for the existing year 2012 + growth to 2031; and AM and PM peak flows for the existing year 2012 + growth to 2031 + development. These traffic flows are considered to be a reasonable and robust assessment of likely future traffic flows which could occur on the network. The drawings are attached in Appendix K.

11.7 In link capacity terms, inspection of the growth plus potential development generated flows in Year 2031 gives an indication of whether the level of development will start to impose capacity problems on the adjacent road network.

11.8 The following table summarises the post development flows at Year 2031 at various locations on the local network:-

Year 2031 Post Development Flows TA 79/99 Location AM Peak Flow PM Peak Flow (UAP3 Road Category) To South – 399 To South – 378 1100 – (60%) Long Chaulden adjacent To North – 402 To North – 347 740 - (40%) to site access Total - 801 Total - 725 Total 1850 To South – 103 To South – 250 1100 – (60%) The Avenue To North – 359 To North – 124 740 - (40%) Total - 462 Total - 374 Total 1850 Long Chaulden to east of To East– 1251 To East – 1146 1100 – (60%) Junction 4 and west of To West – 732 To West – 844 740 - (40%) Junction 5 Total - 1983 Total - 1990 Total 1850 To East– 1111 To East – 790 1100 – (60%) Warners End Road to To West – 652 To West – 1011 740 - (40%) east of Junction 5 Total - 1763 Total - 1801 Total 1850 To East– 1318 To East – 692 1300 – (60%) Warners End Road to To West – 879 To West – 1292 867 - (40%) west of Junction 6 Total - 2197 Total - 1984 Total 2166 To South–943 To South – 706 1100 – (60%) North Ridge to south of To North – 611 To North – 952 740 - (40%) Junction 3 Total - 1554 Total - 1658 Total 1850

11.9 It can be seen from the table above that the majority of the local road flows still lie within the TA 79/99 ‘Traffic Capacity of Urban Roads’ parameters for category UAP3 roads at Year 2031 with growth and development. However, it is identified that these values are exceeded around junctions 4/5 in the AM and PM peaks, and to the west of Junction 6 in

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the AM peak. As previously described in the report, the general road network in the vicinity is generally clear and open, without significant parking or traffic calming, so their capacity would probably be more in line with the higher UAP2 category, which would be adequate to cater for the future flows from a link capacity point of view.

11.10 As previously indicated, six junctions are to be investigated in connection with the proposed development, as discussed with the Highway Authority, in order to assess the current scenario and the longer term effects brought about by growth and the proposed development.

Junction 1

11.11 It is proposed that Junction 1 will take the form of a new right turn lane facility, as previously described in Section 7 of this report and shown on Drawing ST-2189-1-A.

11.12 In order to test if this junction will be adequate to serve the major part of the development as described earlier in this report, Picady runs for both the AM and PM peak periods have been carried out using the 2031 post development flows as shown on Drawing Numbers ST-2189-20 and 21.

11.13 The results of these runs show that the junction works well within capacity with maximum RFC values of 0.413 and 0.24 in the AM and PM peak hours respectively, with negligible queuing. Copies of the Picady runs are attached in Appendix L. The junction is therefore considered suitable to serve the proposed development.

Junction 2

11.14 As described in Section 8 above, an Arcady run has been carried out under current Year 2012 traffic flow conditions, which shows that there is more than adequate capacity available and negligible queuing.

11.15 In order to test if this junction will be adequate to serve the significant part of the development as described earlier in this report, Arcady runs for both the AM and PM peak periods have been carried out using the 2031 post development flows as shown on Drawing Numbers ST-2189-20 and 21.

11.16 The results of these runs show that the junction works well within capacity with maximum RFC values of 0.53 and 0.62 in the AM and PM peak hours respectively, with negligible queuing. Copies of the Arcady runs are attached in Appendix M. The

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junction is therefore considered suitable to serve the proposed development without modification.

Junction 3

11.17 Arcady runs have been carried out under current Year 2012 traffic flow conditions, for both the AM and PM peak periods. A summary table of the AM and PM results is shown below:-

AM 0800 - 0900

Queue (Veh) Delay (min) RFC LOS

(Default Analysis Set) - Existing 2012

Northridge Way south 1.29 0.15 0.57 A Long Chaulden 1.30 0.23 0.56 B Northridge Way north 6.94 0.79 0.89 E

PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Northridge Way south 9.68 0.74 0.93 E Long Chaulden 0.91 0.22 0.48 B Northridge Way north 2.46 0.32 0.71 C

11.18 It can be seen from these runs that there is some queuing currently taking place at this junction; on Northridge Way north in the AM peak and Northridge Way south in the PM peak. RFC values slightly exceed the recommended 0.85, with queue lengths of 7 vehicles and 10 vehicles respectively.

11.19 If growth up to Year 2031 is added to the current Year 2012 flows, with no development, the following results are generated:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth Northridge Way south 1.67 0.18 0.63 B Long Chaulden 1.48 0.26 0.60 C Northridge Way north 23.28 2.11 1.03 F

PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031+growth Northridge Way south 25.63 1.65 1.02 F Long Chaulden 1.05 0.26 0.51 C Northridge Way north 4.28 0.50 0.82 D

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11.20 The above results indicate that growth only without development up to Year 2031 will increase potential queuing to the levels shown above. These queuing levels are unlikely to trigger improvements at this junction.

11.21 If the proposed Fields End Development is added to the above, the following results are generated:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth +

Development Northridge Way south 2.77 0.25 0.74 C Long Chaulden 10.31 1.21 0.95 F Northridge Way north 74.88 7.18 1.25 F

PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth +

Development Northridge Way south 84.12 5.43 1.16 F Long Chaulden 1.81 0.33 0.65 C Northridge Way north 7.24 0.85 0.90 F

11.22 The above results show that significant increase in queuing is likely to occur in both the AM and PM peak periods at Year 2031 as a result of the proposed development, and improvements will be necessary in order to mitigate these effects back to the “do nothing” scenario, assuming no development at Fields End.

11.23 Drawing Number ST-2189-25 has been prepared, showing possible improvements to Junction 3 within the highway in order to mitigate the effects of the proposed development. A copy of this Drawing is attached in Appendix N.

11.24 The Arcady runs for both the AM and PM peak periods have been re-run for Year 2031 plus development, including the amended geometric parameters relating to the proposed improvement. The following results are generated as shown below:-

AM 0800 - 0900

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth + Dev +

Improvements Northridge Way south 1.32 0.12 0.57 A Long Chaulden 10.37 1.21 0.95 F Northridge Way north 6.94 0.67 0.89 E

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PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth + Dev +

Improvements Northridge Way south 7.22 0.44 0.89 D Long Chaulden 2.35 0.43 0.71 D Northridge Way north 1.93 0.21 0.66 B

11.25 It can be seen from these results that the proposed improvements reduce the major queue lengths on Northbridge north in the AM peak and Northbridge south in the PM peak back to significantly below the Year 2031 growth only levels, and well below the “growth plus development” levels. There would be a queue increase of approximately 8 vehicles on Long Chaulden in the AM peak period, but this is not considered to cause undue issues. It is therefore considered that the proposed improvements would serve to mitigate the effects of the proposed development.

Junction 4

11.26 Arcady runs have been carried out under current Year 2012 traffic flow conditions, for both the AM and PM peak periods. A summary table of the AM and PM results is shown below:-

AM 0800 - 0900

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Long Chaulden West 1.20 0.17 0.55 B Boxted Road 19.47 1.95 0.99 F Long Chaulden East 1.52 0.18 0.60 B

PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Long Chaulden West 1.10 0.19 0.52 B Boxted Road 2.10 0.27 0.67 C Long Chaulden East 22.87 1.78 0.99 F

11.27 It can be seen from these runs that there is queuing currently taking place at this junction; on Boxted Road in the AM peak and Long Chaulden East in the PM peak. RFC values exceed the recommended 0.85, with queue lengths of 19 vehicles and 23 vehicles respectively.

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11.28 If growth up to Year 2031 is added to the current Year 2012 flows, with no development, the following results are generated:-

AM 0800 - 0900

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 + growth Long Chaulden West 1.30 0.19 0.57 B Boxted Road 86.08 8.12 1.13 F Long Chaulden East 1.87 0.21 0.65 B

PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 + growth Long Chaulden West 1.19 0.21 0.55 B Boxted Road 3.12 0.37 0.76 C Long Chaulden East 89.90 6.25 1.07 F

11.29 The above results clearly indicate that growth only without development up to Year 2031 significantly increases potential queuing to the levels shown above. These queuing levels are likely to put pressure on the Highway Authority to undertake improvements at this junction even if the Fields End development does not proceed.

11.30 However, if development is progressed at Fields End, the potential queuing will further increase very significantly, and it is likely that junction improvements will be required in order to achieve a level of queuing to at least the level of the “do nothing” scenario, to mitigate the effects of the Fields End development.

11.31 Drawing Number ST-2189-26 has been prepared, showing possible improvements to Junctions 4 and 5 within the highway in order to mitigate the effects of the proposed development. A copy of this Drawing is attached in Appendix O.

11.32 The Arcady runs for both the AM and PM peak periods have been re-run for Year 2031 plus development, including the amended geometric parameters relating to the proposed improvement. The following results are generated as shown below:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth + Dev +

Improvements

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Long Chaulden 2.92 0.29 0.75 C West Boxted Road 20.32 1.54 0.98 F Long Chaulden 1.53 0.13 0.60 A East

PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 + growth + Dev +

Improvements Long Chaulden 1.86 0.26 0.65 C West Boxted Road 1.44 0.15 0.58 A Long Chaulden East 18.53 1.06 0.97 F

11.33 It can be seen from these results that the proposed improvements would appear to significantly reduce queue lengths back to below the Year 2031 growth only levels, and serve to mitigate the effects of the proposed development. However, these results must be taken in the context of the adjacent Junction 5.

Junction 5

11.34 Arcady runs have been carried out under current Year 2012 traffic flow conditions, for both the AM and PM peak periods. Initially, queue lengths in Long Chaulden and Northridge Way generated by these runs appeared to be very high, which was not borne out by on site observations. Therefore, a correction has been made to the slope/intercept value on these arms, in order to generate queues which more reasonably reflect the actual current Year 2012 scenario A summary table of the AM and PM results is shown below:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Warners End Road 1.95 0.27 0.66 C Northridge Way 3.68 0.49 0.79 D Long Chaulden 3.50 0.25 0.78 C

PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Warners End Road 11.47 1.06 0.94 F Northridge Way 6.01 0.70 0.87 E Long Chaulden 9.08 0.94 0.92 F

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11.35 It can be seen from these runs that there is moderate queuing currently taking place at this junction in the PM peak on all arms. RFC values exceed the recommended 0.85, with queue lengths of up to 11 vehicles.

11.36 If growth up to Year 2031 is added to the current Year 2012 flows, with no development, the following results are generated:-

AM 0800 - 0900

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth Warners End Road 4.09 0.50 0.81 D Northridge Way 13.46 1.57 0.96 F Long Chaulden 10.38 0.66 0.92 E

PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth Warners End Road 106.01 8.14 1.11 F Northridge Way 32.47 3.09 1.04 F Long Chaulden 71.72 6.32 1.08 F

11.37 The above results clearly indicate that growth only without development up to Year 2031 significantly increases potential queuing in the PM peak to the levels shown above. These queuing levels are likely to put pressure on the Highway Authority to undertake improvements at this junction even if the Fields End development does not proceed.

11.38 However, if development is progressed at Fields End, the potential queuing will further increase very significantly, and it is likely that junction improvements will be required in order to achieve a level of queuing to at least the level of the “do nothing” scenario, to mitigate the effects of the Fields End development.

11.39 Drawing Number ST-2189-26 has been prepared, showing possible improvements to Junctions 4 and 5 within the highway in order to mitigate the effects of the proposed development. A copy of this Drawing is attached in Appendix O.

11.40 The Arcady runs for both the AM and PM peak periods have been re-run for Year 2031 plus development, including the amended geometric parameters relating to the proposed improvement. The following results are generated as shown below:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth +Dev +

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Improvements Warners End 21.42 2.03 0.99 F Road Northridge Way 35.29 4.10 1.05 F Long Chaulden 6.72 0.33 0.87 C

PM 1700 - 1800

Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth + Dev +

Improvements. Warners End 296.17 20.03 1.26 F Road Northridge Way 93.09 9.65 1.15 F Long Chaulden 4.00 0.28 0.80 C

11.41 It can be seen from the results above that the continuation of a double mini roundabout junction at this location which comprises Junctions 4/5 is unlikely to be appropriate for the Year 2031 scenario, even if the Fields End development did not proceed.

11.42 Under this scenario, it is recommended that a traffic signal control junction should be considered by the Highway Authority, possibly in conjunction with the developer in due course.

11.43 A preliminary feasibility assessment has been carried out for signalisation of Junctions 4 and 5, using the Linsig capacity programme. It would appear that a workable solution could be achieved to cater for the post development flows in Year 2031, but further investigation work will be required in due course. This would include an origin/destination survey of traffic and a full topographical survey of the area in the vicinity of Junctions 4 and 5. A copy of the feasibility Linsig report is attached in Appendix O, along with Drawing ST-2189-29 showing a preliminary traffic light layout.

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Junction 6

11.44 Arcady runs have been carried out under current Year 2012 traffic flow conditions, for both the AM and PM peak periods. A summary table of the AM and PM results is shown below:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Warners End Road 6.14 0.38 0.87 C Leighton Buzzard Road North 2.73 0.16 0.74 A Queensway 2.09 0.17 0.67 B Leighton Buzzard Road South 1.26 0.09 0.56 A

PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Existing 2012 Warners End Road 1.11 0.13 0.54 A Leighton Buzzard Road North 0.74 0.06 0.42 A Queensway 35.41 1.56 1.03 F Leighton Buzzard Road South 6.34 0.36 0.88 C

11.45 It can be seen from these runs that there is slight queuing currently taking place at this junction in the AM peak on Warners End Road. The recommended RFC value of 0.85 is slightly exceeded, with a queue length of 6 vehicles.

11.46 In the PM peak, moderate queuing takes place on Queensway, and to a lesser extent on Leighton Buzzard Road South. RFC values exceed the recommended 0.85, with queue lengths of 35 vehicles and 6 vehicles respectively.

11.47 If growth up to Year 2031 is added to the current Year 2012 flows, with no development, the following results are generated:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth Warners End Road 56.71 2.62 1.09 F Leighton Buzzard Road North 8.58 0.45 0.91 D Queensway 5.24 0.39 0.85 C Leighton Buzzard Road South 2.15 0.13 0.69 A

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PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 with growth Warners End Road 1.87 0.18 0.66 B Leighton Buzzard Road North 1.07 0.07 0.51 A Queensway 172.19 7.32 1.27 F Leighton Buzzard Road South 27.68 1.27 1.01 F

11.48 The above results clearly indicate that growth only without development up to Year 2031 significantly increases potential queuing to the levels shown above. These queuing levels are again likely to put pressure on the Highway Authority to undertake improvements at this junction even if the Fields End development does not proceed.

11.49 However, if development is progressed at Fields End, the potential queuing will further increase very significantly, and it is likely that junction improvements will be required in order to achieve a level of queuing to at least the level of the “do nothing” scenario, to mitigate the effects of the Fields End development.

11.50 Drawing Number ST-2189-27-A has been prepared, showing possible improvements to Junction 6 in order to mitigate the effects of the proposed development. A copy of this Drawing is attached in Appendix P.

11.51 The Arcady runs for both the AM and PM peak periods have been re-run for Year 2031 plus development, including the amended geometric parameters relating to the proposed roundabout improvement. The following results are generated as shown below:-

AM 0800 - 0900 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 + growth + development

+Improvements Warners End Road 36.59 1.46 1.03 F Leighton Buzzard Road 27.77 1.31 1.02 F North Queensway 2.92 0.19 0.74 B Leighton Buzzard Road 1.66 0.09 0.63 A South

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PM 1700 - 1800 Queue (Veh) Delay (min) RFC LOS (Default Analysis Set) - Year 2031 + growth + development

+Improvements Warners End Road 1.51 0.12 0.61 A Leighton Buzzard Road 1.09 0.07 0.52 A North Queensway 75.07 2.49 1.09 F Leighton Buzzard Road 39.59 1.60 1.04 F South

11.52 It can be seen from these results that the proposed improvements significantly reduce the major queue lengths on Warners End Road in the AM peak and Queensway in the PM peak back to significantly below the Year 2031 growth only levels; minus 20 vehicles and minus 97 vehicles respectively. However, it is noted that a queue increase of 19 vehicles is generated in the AM peak on Leighton Buzzard Road north and 12 vehicles on Leighton Buzzard Road South in the PM peak.

11.53 The roundabout would probably perform reasonably well in the AM peak with the proposed modifications, which would be subject to a topographical survey and detailed design.

11.54 However, potential queuing of 75 vehicles in the PM peak hour at Year 2013 with development and improvements may need to be considered in future in conjunction with the Highway Authority.

11.55 Signalisation of this roundabout may possibly be considered by the Highway Authority to increase capacity prior to 2031, depending on the general growth in traffic over the next few years. Depending on the services in the vicinity of the roundabout, it may be more economical to signalise the junction in any event, to minimise costs and further improve the junction capacity.

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12. Conclusions

12.1 Stomor Ltd has been commissioned by Taylor Wimpey Strategic Land, to prepare a Means of Access, Transport and Sustainability Appraisal for land at Fields End, Hemel Hempstead, Herts.

12.2 This report covers investigations associated with potential new residential and associated development at the site, including assessment of access arrangements available to serve the site from the surrounding road network.

12.3 Site visits were undertaken to inspect the sites and surrounding road network, in order to assess accessibility and traffic implications of the proposed developments on the site.

12.4 Various classified traffic counts were carried out in order to assess the current traffic flow situation on the road network, and likely effects of potential development.

12.5 The site covers an area of approximately 51 hectares and the proposal is for it to become an Urban Extension of residential dwellings and associated uses in line with the Council’s emerging Core Strategy. The proposals are at an early stage, and will be progressively determined through a detailed site layout exercise. The site will be developed primarily with residential housing of up to 900 units. In addition, a 2FE primary school and community uses including a doctors surgery would be provided within the development.

12.6 It has been noted that in previous Local Plan Inquiries, the Inspector has expressed concern that there would be an excessive demand on local Primary Schools for developments of over 400 units, and raised particular concerns about the capacity of local health facilities to cope with additional demand from a new development. The inclusion of a new 2fe Primary School, new doctors surgery and associated community facilities have been included in the proposed scheme in order to address these concerns.

12.7 It should be emphasised that central to delivery of the above development is the maximum utilisation and promotion of non car modes of transport, to maximise the sustainability of the development. This will include extended and enhanced bus services, along with a comprehensive network of on-site foot/cycleways linking in to the local networks.

12.8 In consultation with the bus operating companies, it is the intention to extent the routes of services 2 and 3 into the development site via suitably designed road systems, which

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will conform to the Herts Design Guide. Suitable bus stops would be provided to ensure that all properties would be within a 400m of their nearest stop. In addition, the developer would explore the possibility of improving the H13 service to provide a link to employment areas such as Maylands Industrial area. It should be emphasised that improvements to these bus services would not only cater for the proposed development, but would also provide an enhanced service for the existing community in the vicinity of the site.

12.9 Provision of additional controlled crossings will be required, possibly with some enhanced off site foot/cycleway provision. Drawing ST-2189-1-A shows a possible location of such a crossing in Long Chaulden. One such potential foot/cycleway link has been indicated on the Drawing Number ST-2189-23-A, which is located to the south of the site at Chaulden Lane. In addition, a potential pedestrian and cycle link could be made available into Chaulden Lane to the south west of the site which would enable them to use this road to gain access to Winkwell, Grand Union Canal and the A4251 via Pouchen End Lane and Winkwell Lane. However, the nature of these roads is not ideal for such uses due to the winding road alignments and limited visibility.

12.10 In order to carry out a robust assessment of the potential effects of the proposed development, this assessment does not rely upon modal shift change from the private car to more sustainable forms of transport, although this will be encouraged through improvements to sustainable transport provision in the surrounding area. The road network and junctions have been assessed to the horizon year of 2031, including Tempro growth and the full envisaged development. The scope of this appraisal and the links and junctions to be considered in this report have been discussed with the Highway Authority, and confirmed to them in Stomor Ltd’s letter dated 22nd March 2012.

12.11 Stomor Ltd have reviewed reports which were carried out to assess various development proposals for the Fields End site over the past six years. The latest proposals include a new primary school, doctors surgery and community uses. These facilities clearly increase the sustainability credentials of the site and have a beneficial downward effect on the overall trip generation rates.

12.12 It should be noted that it is expected that 40% of the housing will be affordable homes. This is likely to have the effect of downward pressure on the trip rates for the development.

12.13 The proposed Primary School will be placed in a location within the site to be central to the proposed and existing surrounding housing and local community, with good footway

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and cycle links to surrounding residential areas, in order to maximise the opportunities for parents to use non car modes when accompanying children to school.

12.14 Suitable Green Travel Plans (GTP) will be introduced for the proposed uses including the Primary School, residential development and community uses, and submitted with any future planning applications. With respect to the Primary School, the following would be considered:-

 The GTP will be prepared in order to communicate and deliver the opportunities and alternatives to the private car, to encourage a reduction in car travel by both students and staff.  The GTP will be actively applied, ideally with a designated person in charge of its application and future development.  Breakfast and after school clubs will be promoted which can have a significant effect in reducing congestion outside a school site during the peak travel periods. Maximising the availability of such facilities would help to minimise traffic impacts associated with expansion of the school.  There is the opportunity to stagger the Key Stage 1 and 2 start/finish times by approximately 15 minutes. This again has the effect of distributing the traffic peaks over an extended period, thus reducing peak traffic flows.  With active management of the school travel plan, the number of journeys to or from school made by car could be significantly reduced, particularly as a large percentage of pupils may potentially live within 2km of the school.

12.15 All the above measures will serve to exert downward pressure on car trips, notwithstanding the fact that the local road link and junction network has been assessed in this report as a worst case scenario without modal shift changes.

12.16 With respect to the potential traffic impact resulting from the development, it is anticipated that the local road links should have the capacity to cater for the envisaged 2031 flows including growth and development. The network comprises 6.75m-7.3m wide roads, and the main running carriageways are generally free of parked vehicles, which maximises their effectiveness. This is achieved due to dedicated space in the form of hard verges being provided adjacent to the carriageway, with wide footways behind.

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12.17 It has been noted from the Steer Davies Gleave report that the localised queuing occurring at Junctions 4 and 5 in Year 2021 would be magnified in the Year 2031 scenario, requiring mitigation measures/improvements.

12.18 In addition, they envisaged significant queuing at Junction 6, the Leighton Buzzard Road/Warners End Road Roundabout at Year 2031 with development. It was suggested that signalisation or minor junction re-design may be required.

12.19 As confirmed in the report and conclusions below, the Stomor analysis of the local junctions would appear to be compatible with the SDC conclusions.

12.20 The local junctions have been assessed in more detail for the most robust scenario using Arcady, Picady and Linsig capacity programmes, for the Horizon Year 2031 with growth and development. In the cases of the new right turn facility main site access in Long Chaulden, and the existing roundabout at The Avenue (Junctions 1 and 2), these will perform satisfactorily and well within capacity.

12.21 Junctions 3 – 6 will all require upgrading to cater for both growth and proposed development. Arcady and Linsig runs have been carried out for these junctions at Year 2012 current traffic levels, Year 2031 including growth, and Year 2031 including growth and development. Further runs have been undertaken to test the Year 2031 scenario including growth and development, along with specified junction improvements, in order to reduce the traffic flows and queues back to Year 2031 levels or better with growth only levels; ie nil detriment. Preliminary drawings of the improvements proposed are included with this report.

12.22 In the case of Junction 3, the proposed measures should mitigate the effects of the proposed development.

12.23 The mini roundabout incorporating Junctions 4/5 is more problematic. Flows in this vicinity are generally high at present on several arms, and queues are experienced under current conditions. We have run various Arcady scenarios, and can probably mitigate the effects at Junction 4. However, Junction 5 cannot be mitigated, even with the improvement works proposed, and it is also in close proximity with Junction 4. Therefore, a double mini roundabout is unlikely to be suitable for future Year 2031 flows. Under this scenario, we have therefore considered a traffic signal solution at this location. Preliminary Linsig calculations have been prepared which indicate that a signal controlled junction could work at this location in the worst case scenario tested.

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12.24 The roundabout junction at Leighton Buzzard Road connecting with Warners End Road, Junction 6, is busy under current conditions. Background growth to Year 2031 without the Fields End development increases queuing significantly.

12.25 The proposed improvements as discussed in this report, taking into account the proposed development, significantly reduce the major queue lengths back to below the Year 2031 growth only levels, and therefore serve to mitigate the effects of the proposed development. Increased traffic at this location is likely to require the intervention of the Highway Authority and a coordinated approach to improvements around the town centre, taking account of the impact of development in the town centre.

12.26 Signalisation of this roundabout may possibly be considered by the Highway Authority to increase capacity prior to 2031, depending on the general growth in traffic over the next few years.

12.27 It would be reasonable to expect the Highway Authority to play their part in delivering improvements to the junctions as described above, as background traffic growth resulting from developments and other factors other than proposed by the Client developer would still need to be accommodated in the network in due course. Although the improvements suggested in this report are designed to be carried out within the highway boundary and mitigate the effects of the Client’s development, the HA may need to use their powers where appropriate if additional land is needed for improvements over and above those suggested in this report.

12.28 It should be noted that traffic patterns may well change within the next 20 years, and this report has endeavoured to assess a possible worst case scenario at the links and junctions considered. Should flows increase to levels where queuing and congestion reach unacceptable levels, traffic would tend to redistribute along other routes.

12.29 Overall, it is considered that the proposed assignment and distribution of future traffic described in this report represents a robust basis for junction appraisal, to demonstrate that the proposed development of up to 900 houses and a school are deliverable and suitable for allocation, subject to a more detailed transport assessment being prepared as the actual development proposals emerge.

12.30 In order to keep traffic generation in the future to the absolute minimum, it will be essential to introduce robust measures to promote the use of sustainable transport modes on all proposed developments in the town to minimise reliance on the private car wherever possible.

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12.31 The Highways Agency have been consulted by means of their Initial appraisal consultation form, Appendix A of the DfT Guidance on Transport Assessment. Their response is currently awaited, but it is anticipated that a suitable Transport Assessment will be required to accompany future planning applications which pays due regard to the impact of the development on the strategic road network.

12.32 Overall, it is considered in transport terms that the proposed development site is suitable to be allocated by the Borough Council in their Core Strategy for Hemel Hempstead, subject to junction improvement works to be discussed, refined and agreed with the Highway Authority.

Ref: ST-2189/ATSA-1205-Fields End-Rev 3 Page | 47 APPENDIX A

KEY

Site

Site Boundary

SITE

Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project

Land at Fields End, Hemel Hempstead

Drawing Description Site Location Plan

Scale Date Drawn By Checked By 1:10,000 @ 02/04/12 LAF DGS A3

Client Architect

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-22 to the attention of the engineer immediately. APPENDIX B

APPENDIX C

APPENDIX D

KN IG HT S 28 IVE Or c 49 AN 2 OR C HA RD 2 7 ha rd IL R L 35 8 68 E Y H G E 78 3 52 34 24 AL L 7 A N 34 59 41 3 3 3 28 3 G 1 EH 30 3 OL 6 9 7 37 62 3 P 2 9 3

PO 26 3

UC 0 5

H 1 2

EN 5 54

E 1 7 3

ND

L 80 h el ter

AN 0 5 3 Post S

E 7 1 60 40 3 1 Pla yground 90 TCB to 1 3 96 4 7 53 94 3 4 3 N 5 Posts 2 E 4 Posts 46 1 GR 1 le LM ap CH Church 9 E M 6 1 3 5 150.6m 5 3 Hall 3 1 1 8 38 6 34 39 36 7 Manse Sub Sta HE DG E RO W 8 30 2 Allo tment Gaden r s 40 2 DA 3 4 7 G G 1 3 Posts 1 1 37 S D 1 6 4 2 EL N El

72 D 2 RO E 2 O A 0 AD GR 3 8

0.9 2 M R 2 LE 1 8 7 4

1m 38 O O AP 0 4 1

R B R 8 M 5 4

H 1 37 I TE 1 48 F Pla yin g ieF ld 4 6 H F W 16 Pavili on

14 28 3 40

2 Posts 2 35 1 26 PU 38 Brownlo w arFm Barns A NE 38 d y D D 3 ND L d B IN G S E 3 ar LA IEL D W N E 34 F 0 1

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1 8 Produced using ArcView by HB & LC N Hertfordshire County Council Key Sheet Scale at A4 22 Mar 2012 Chaulden, Hemel Hempstead 1:10000 W E

S Public Rights of Way The Rights of way information on this plan is based on © Crown copyright and dat abase rights 2012 O rdnance Survey 100019606. information from the Definitive Map of Public Rights Use of t his data is subject to terms and conditions. of Way in Hertfordshire ("the Definitive Map"). Th e acc ura cy of th is pl an cann ot be gua ran te ed . You are not permitted t o copy, sub-licence, distribut e or sell any of this data t o t hird parties in any form. For reference purposes only. If in doubt the Definitive Map should be consulted. (This rest riction may not apply to HCC and its licenced contractors agent s and partners.) No further copies may be made. O AD F E R For reference purposes only. M I HE M T L No further copies may be made. E 19 Y

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6 W 7 1 1 A Y 54 2 TH EA 5 H 9 SE O 17 R Plan 2 4 9 West of Chaulden 62

Hemel Hempstead 5 1 7 137.8m

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1 6 7 4 R O 5 S 5 E H E 9 A Produced using ArcView by T N H HB & LC 7 EE GR 1 R 0 E Hertfordshire County Council NIP JU 22 Mar 2012 1 n N ree E er G P W nip a Ju t L h A ( Public Rights of Way u N 6 m D 9 8 The Rights of way information on this plan is based on ) S 2 information from the Definitive Map of Public Rights R 1 O 8 of Way in Hertfordshire ("the Definitive Map"). 5 A The accuracy of this plan cannot be guaranteed. D If in doubt the Definitive Map should be consulted. 7 8 2 © Crown copyright and database rights 2012 Ordnance Survey 100019606. Use of this data is subject to terms and conditions. 283 You are not permitted to copy, sub-licence, distribute

or sell any of this data to third parties in any form. 2 (This restriction may not apply to HCC and its licenced contractors agents and partners.) For reference purposes only. No further copies may be made.

1 6 7 7 1 2 2 Hemel Hempstead Public Footpath 020

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1 6 9 Public Rights of Way 1 8 The Rights of way information on this plan is based on 4 1 information from the Definitive Map of Public Rights 8 of Way in Hertfordshire ("the Definitive Map"). 2 The accuracy of this plan cannot be guaranteed. If in doubt the Definitive Map should be consulted. 63

© Crown copyright and database rights 8 2012 Ordnance Survey 100019606. 0 Use of this data is subject to terms and conditions. You are not permitted to copy, sub-licence, distribute 51 1

or sell any of this data to third parties in any form. 6 (This restriction may not apply to HCC and 7 its licenced contractors agents and partners.) 8

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—nd2wust2xot2˜e2‚eprodu™ed2‡ithout2‡ritten2€ermission Full Non Confidential Accident Report Date Produced: 03-Apr-12 Set Name (if saved) : 17204 Set Total : 13 Accident Details: Acc Ref: 2011-4100D0137 1st / 2nd Rd: U876/10 U801/10 Jun Detail: Mini Weather: Rain Num Cas: 1

Day of Week: Wed Parish: Hemelhem Jun Control: Gwy/unct Light: Darklit Num Peds: 1

Date: 26/01/2011 17:39:00 District: Dacorum Spec Conditions: None Road Surface: Wet Num Vehicles: 1 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Nperzebx Northridge Way, Hemel Hempstead Est 18m Se Of Mini-rbt J/w Long Chaulden On Site: Yes

Easting:503888 Northing: 206575

Casualty Details

Acc Ref: 2011-4100D0137 Cas Class: Pedestri Car Passenger: Ped Cas Severity: Slight Ped Movement: Xnrside

Veh Ref: 1 Cas Age: 12 PSV Passenger: PedRoad User Class: Pedestrians Ped Location: Pedcross

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Toorfrom Ped Work on Rd: No

Vehicle Details

Acc Ref: 132587 Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 64

Veh Ref: 1 Location: Carw Object in Cway: None From: N Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Exit Object off Cway None To: Se Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 1 of 14 Accident Details: Acc Ref: 2010-4100D0894 1st / 2nd Rd: U876/10 U801/10 Jun Detail: Mini Weather: Fine Num Cas: 3

Day of Week: Sun Parish: Hemelhem Jun Control: Gwy/unct Light: Darklit Num Peds: 0

Date: 07/11/2010 18:55:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: R/bout Ped Xing: Nperpelx Northridge Way, Hemel Hempstead Mini-rbt J/w Long Chaulden On Site: Yes

Easting:503881 Northing: 206593

Casualty Details

Acc Ref: 2010-4100D0894 Cas Class: Passenge Car Passenger: Frontsea Cas Severity: Slight Ped Movement: Notped

Veh Ref: 1 Cas Age: 21 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 1 Cas Gender: Female Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Acc Ref: 2010-4100D0894 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 42 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 2 Cas Gender: Female Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Acc Ref: 2010-4100D0894 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 1 Cas Age: 21 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 3 Cas Gender: Male Seat Belt: Unknown School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 132154 Maneouvre: Turnrigh Skiding: None Impact Point:Offside Driver Breath Test: Negati Driver Age: 21

Veh Ref: 1 Location: Carw Object in Cway: None From: W Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Er/about Object off Cway None To: S Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Acc Ref: Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 42

Veh Ref: 2 Location: Carw Object in Cway: None From: S Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Middle Object off Cway None To: N Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Set Name (if saved) : 17204 Page 2 of 14 Accident Details: Acc Ref: 2011-4100D0157 1st / 2nd Rd: U801/10 U606/10 Jun Detail: T Weather: Other Num Cas: 1

Day of Week: Fri Parish: Hemelhem Jun Control: Gwy/unct Light: Darklit Num Peds: 0

Date: 11/03/2011 21:20:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npercntr Long Chaulden, Hemel Hempstead J/w Cuttsfield Terrace On Site: No-otc

Easting:503700 Northing: 206641

Casualty Details

Acc Ref: 2011-4100D0157 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 1 Cas Age: 52 PSV Passenger: NoRoad User Class: Cyclists Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 132924 Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Notapp Driver Age: 52

Veh Ref: 1 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Bicycle Junction: Emain Object off Cway None To: Se Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Acc Ref: Maneouvre: Turnrigh Skiding: None Impact Point:Offside Driver Breath Test: Notcon Driver Age: 54

Veh Ref: 2 Location: Carw Object in Cway: None From: Ne Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Middle Object off Cway None To: Nw Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 3 of 14 Accident Details: Acc Ref: 2009-4100D0845 1st / 2nd Rd: U916/10 U801/10 Jun Detail: T Weather: Fine Num Cas: 1

Day of Week: Fri Parish: Hemelhem Jun Control: Gwy/unct Light: Daystlts Num Peds: 0

Date: 06/11/2009 12:03:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Pixies Hill Road, Hemel Hempstead 7m Sw Of J/w Long Chaulden On Site: Yes

Easting:503677 Northing: 206641

Casualty Details

Acc Ref: 2009-4100D0845 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 1 Cas Age: 27 PSV Passenger: NoRoad User Class: Cyclists Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 129220 Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 27

Veh Ref: 1 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Bicycle Junction: Approach Object off Cway None To: Se Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Acc Ref: Maneouvre: Waitleft Skiding: None Impact Point:Nearside Driver Breath Test: Negati Driver Age: 57

Veh Ref: 2 Location: Carw Object in Cway: None From: Sw Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Approach Object off Cway None To: Nw Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 4 of 14 Accident Details: Acc Ref: 2009-4100D0470 1st / 2nd Rd: U801/10 U724/10 Jun Detail: T Weather: Fine Num Cas: 1

Day of Week: Sun Parish: Hemelhem Jun Control: Gwy/unct Light: Darklit Num Peds: 1

Date: 21/06/2009 00:36:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 1 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead Est 8m Se Of J/w Hazeldell Road, Outside Tudor Rose P.h. On Site: Yes

Easting:503617 Northing: 206677

Casualty Details

Acc Ref: 2009-4100D0470 Cas Class: Pedestri Car Passenger: Ped Cas Severity: Slight Ped Movement: Xnrside

Veh Ref: 1 Cas Age: 59 PSV Passenger: PedRoad User Class: Pedestrians Ped Location: Elsewher

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd: No

Vehicle Details

Acc Ref: 128133 Maneouvre: Leftbend Skiding: None Impact Point:Front Driver Breath Test: Positiv Driver Age: 20

Veh Ref: 1 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Exit Object off Cway None To: Se Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 5 of 14 Accident Details: Acc Ref: 2008-4100D0440 1st / 2nd Rd: U801/10 Jun Detail: Notjunct Weather: Fine Num Cas: 1

Day of Week: Sat Parish: Hemelhem Jun Control: Notjunct Light: Daystlts Num Peds: 1

Date: 14/06/2008 17:30:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden Hemel Hempstead Est 35m North J/w Rowcroft On Site: Yes

Easting:503339 Northing: 207024

Casualty Details

Acc Ref: 2008-4100D0440 Cas Class: Pedestri Car Passenger: Ped Cas Severity: Slight Ped Movement: Cwaystil

Veh Ref: 1 Cas Age: 34 PSV Passenger: PedRoad User Class: Pedestrians Ped Location: Incway

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd: No

Vehicle Details

Acc Ref: 125234 Maneouvre: Ahead Skiding: None Impact Point:Nearside Driver Breath Test: Negati Driver Age: 39

Veh Ref: 1 Location: Carw Object in Cway: None From: S Hit and Run: Nothtrun

Veh Type: Gdltwght Junction: Notjunct Object off Cway None To: N Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Acc Ref: Maneouvre: Parked Skiding: None Impact Point:None Driver Breath Test: Negati Driver Age: 33

Veh Ref: 2 Location: Carw Object in Cway: None From: Still Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Notjunct Object off Cway None To: Still Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 6 of 14 Accident Details: Acc Ref: 2009-4100D0384 1st / 2nd Rd: U801/10 U811/10 Jun Detail: T Weather: Fine Num Cas: 3

Day of Week: Sat Parish: Hemelhem Jun Control: Gwy/unct Light: Daystlts Num Peds: 0

Date: 16/05/2009 13:20:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead J/w Lucks Hill On Site: Yes

Easting:503315 Northing: 207138

Casualty Details

Acc Ref: 2009-4100D0384 Cas Class: Passenge Car Passenger: Frontsea Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 13 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Acc Ref: 2009-4100D0384 Cas Class: Passenge Car Passenger: Rearseat Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 10 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 2 Cas Gender: Female Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Acc Ref: 2009-4100D0384 Cas Class: Passenge Car Passenger: Rearseat Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 7 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 3 Cas Gender: Male Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 127896 Maneouvre: Waitrigh Skiding: None Impact Point:Offside Driver Breath Test: Negati Driver Age: 45

Veh Ref: 1 Location: Carw Object in Cway: None From: Se Hit and Run: Nothtrun

Veh Type: Gdltwght Junction: Emain Object off Cway None To: N Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Work Driver Severity: None

Acc Ref: Maneouvre: Leftbend Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 39

Veh Ref: 2 Location: Carw Object in Cway: None From: N Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Middle Object off Cway None To: S Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Tofrowrk Driver Severity: None

Set Name (if saved) : 17204 Page 7 of 14 Accident Details: Acc Ref: 2009-4100D0820 1st / 2nd Rd: U1021/1 Jun Detail: Notjunct Weather: Rain Num Cas: 1

Day of Week: Tue Parish: Hemelhem Jun Control: Notjunct Light: Daystlts Num Peds: 1

Date: 10/11/2009 10:25:00 District: Dacorum Spec Conditions: None Road Surface: Wet Num Vehicles: 1 Acc Severity: Fatal Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Stoneycroft, Hemel Hempstead 57m Se Of J/w Long Chaulden On Site: Yes

Easting:504095 Northing: 207466

Casualty Details

Acc Ref: 2009-4100D0820 Cas Class: Pedestri Car Passenger: Ped Cas Severity: Fatal Ped Movement: Xoffside

Veh Ref: 1 Cas Age: 83 PSV Passenger: PedRoad User Class: Pedestrians Ped Location: Unknown

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd: No

Vehicle Details

Acc Ref: 129215 Maneouvre: Reverse Skiding: None Impact Point:Back Driver Breath Test: Notreq Driver Age: 80

Veh Ref: 1 Location: Carw Object in Cway: None From: Se Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Notjunct Object off Cway None To: Nw Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 8 of 14 Accident Details: Acc Ref: 2008-4100D0190 1st / 2nd Rd: U1076/1 U505/10 Jun Detail: Mini Weather: Rain Num Cas: 1

Day of Week: Sat Parish: Hemelhem Jun Control: Gwy/unct Light: Darklit Num Peds: 0

Date: 08/03/2008 20:00:00 District: Dacorum Spec Conditions: None Road Surface: Wet Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: R/bout Ped Xing: Nperpelx Warners End Road, Hemel Hempstead Mini-rbt J/w Boxted Road & Long Chaulden On Site: Yes

Easting:504132 Northing: 207481

Casualty Details

Acc Ref: 2008-4100D0190 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 19 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Unknown School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 124461 Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 19

Veh Ref: 1 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Middle Object off Cway None To: Se Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Acc Ref: Maneouvre: Turnrigh Skiding: None Impact Point:Offside Driver Breath Test: Negati Driver Age: 19

Veh Ref: 2 Location: Carw Object in Cway: None From: Se Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Middle Object off Cway None To: N Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Set Name (if saved) : 17204 Page 9 of 14 Accident Details: Acc Ref: 2008-4100D0189 1st / 2nd Rd: U801/10 U1021/1 Jun Detail: T Weather: Other Num Cas: 1

Day of Week: Wed Parish: Hemelhem Jun Control: Gwy/unct Light: Daystlts Num Peds: 0

Date: 05/03/2008 07:12:00 District: Dacorum Spec Conditions: None Road Surface: Frostice Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead 5m Nw Of J/w Stoneycroft On Site: Yes

Easting:504055 Northing: 207491

Casualty Details

Acc Ref: 2008-4100D0189 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 67 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 124460 Maneouvre: Ahead Skiding: None Impact Point:Front Driver Breath Test: Notreq Driver Age: 42

Veh Ref: 1 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Approach Object off Cway None To: Se Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Work Driver Severity: None

Acc Ref: Maneouvre: Waitrigh Skiding: None Impact Point:Back Driver Breath Test: Ntprov Driver Age: 67

Veh Ref: 2 Location: Carw Object in Cway: None From: Nw Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Approach Object off Cway None To: S Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Set Name (if saved) : 17204 Page 10 of 14 Accident Details: Acc Ref: 2011-4100D0757 1st / 2nd Rd: U801/10 U936/10 Jun Detail: T Weather: Fine Num Cas: 1

Day of Week: Wed Parish: Hemelhem Jun Control: Gwy/unct Light: Daystlts Num Peds: 0

Date: 26/10/2011 11:40:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead, Approx 10m East J/w Ravensdell On Site: Yes

Easting:503659 Northing: 207511

Casualty Details

Acc Ref: 2011-4100D0757 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 2 Cas Age: 26 PSV Passenger: NoRoad User Class: Motorcyclists Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 134449 Maneouvre: Reverse Skiding: None Impact Point:Back Driver Breath Test: Notreq Driver Age: 23

Veh Ref: 1 Location: Carw Object in Cway: None From: W Hit and Run: Nothtrun

Veh Type: Gdltwght Junction: Exit Object off Cway None To: E Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Work Driver Severity: None

Acc Ref: Maneouvre: Waitahea Skiding: None Impact Point:Front Driver Breath Test: Notreq Driver Age: 26

Veh Ref: 2 Location: Carw Object in Cway: None From: W Hit and Run: Nothtrun

Veh Type: Mc<=125 Junction: Exit Object off Cway None To: E Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Set Name (if saved) : 17204 Page 11 of 14 Accident Details: Acc Ref: 2010-4100D0458 1st / 2nd Rd: U801/10 Jun Detail: Notjunct Weather: Fine Num Cas: 1

Day of Week: Fri Parish: Hemelhem Jun Control: Notjunct Light: Daystlts Num Peds: 0

Date: 25/06/2010 19:50:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 1 Acc Severity: Serious Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead Exact Location Not Recorded, Gridded 28m West Of J/w Varney Road On Site: No-otc

Easting:503800 Northing: 207532

Casualty Details

Acc Ref: 2010-4100D0458 Cas Class: Passenge Car Passenger: No Cas Severity: Serious Ped Movement: Notped

Veh Ref: 1 Cas Age: 2 PSV Passenger: SeatedRoad User Class: PSV's Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Notapp School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 130878 Maneouvre: Parked Skiding: None Impact Point:None Driver Breath Test: Notcon Driver Age: 36

Veh Ref: 1 Location: Carw Object in Cway: None From: Still Hit and Run: Nothtrun

Veh Type: Psv Junction: Notjunct Object off Cway None To: Still Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Work Driver Severity: None

Set Name (if saved) : 17204 Page 12 of 14 Accident Details: Acc Ref: 2007-4100D0027 1st / 2nd Rd: U801/10 U750/10 Jun Detail: T Weather: Finewind Num Cas: 1

Day of Week: Sat Parish: Hemelhem Jun Control: Gwy/unct Light: Daystlts Num Peds: 0

Date: 20/01/2007 13:20:00 District: Dacorum Spec Conditions: None Road Surface: Dry Num Vehicles: 2 Acc Severity: Slight Speed Limit: 30mph C/way Hazard: None C/way Type: Single Ped Xing: Npernox Long Chaulden, Hemel Hempstead Est 5m Se Of J/w Hollybush Lane On Site: Yes

Easting:503766 Northing: 207533

Casualty Details

Acc Ref: 2007-4100D0027 Cas Class: Driver Car Passenger: No Cas Severity: Slight Ped Movement: Notped

Veh Ref: 1 Cas Age: 18 PSV Passenger: NoRoad User Class: Car Users Ped Location: Notped

Cas Ref: 1 Cas Gender: Male Seat Belt: Yes School Pupil: Other Ped Work on Rd:

Vehicle Details

Acc Ref: 120361 Maneouvre: Leftbend Skiding: None Impact Point:Front Driver Breath Test: Negati Driver Age: 18

Veh Ref: 1 Location: Carw Object in Cway: None From: Se Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Approach Object off Cway None To: Sw Driver Gender: Male

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: Slight

Acc Ref: Maneouvre: Waitrigh Skiding: None Impact Point:Back Driver Breath Test: Negati Driver Age: 33

Veh Ref: 2 Location: Carw Object in Cway: None From: Se Hit and Run: Nothtrun

Veh Type: Car+3whl Junction: Approach Object off Cway None To: N Driver Gender: Female

Foreign Veh: Notfrv Towing; None velcwy No J Purpose: Other Driver Severity: None

Set Name (if saved) : 17204 Page 13 of 14 Set Name (if saved) : 17204 Page 14 of 14 APPENDIX F

Foot/cycle link to school / community facilities. Proposed signal controlled crossing

3.5m wide foot/cycleway

4.5m x 90m VS

Existing footpath

PROPOSED 6.75M WIDE SITE ACCESS ROAD

3.5m 3.0m 3.5m 2m footway

4.5m x 90m VS Possible Right Turning Lane Junction

3.5m wide foot/cycleway

A Amendments to access road width 11.04.12 LAF DGS Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project

Land at Fields End, Hemel Hempstead

Drawing Description Possible Right Turn Facility Access on Long Chaulden

Scale Date Drawn By Checked By 1:500 9.6.11 DGS NJM

Client Architect

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-1-A to the attention of the engineer immediately. Proposed vehicular access link to The Avenue. 6.75m wide carriageway. Include foot/cycleways as necessary.

MYRTLE GREEN Possible foot/cycleway connection into site. Subject to agreement with Third Party landowners. Link to Newlands Roads / Long Chaulden.

SITE Indicative line of access road

Indicative line of internal loop road Proposed vehicular access link and primary site access. Right turn facility. Access road 6.75m wide Local Distributor. Include Foot/cycleways as necessary. Roundabout access possible if required.

Possible vehicular access for a very limited number of dwellings, OR possible Foot/cycle way connection, subject to agreement with Third Party landowners. Link to Rowcroft/ Long Chaulden.

Possible vehiclular access for a very limited number of dwellings, OR possible Foot/ cycle way connection, subject to agreement with Third Party landowners. Link to Honeycross Road / Chaulden.

Possible vehiclular access for a very limited number of dwellings, OR possible Foot/ cycleway connection subject to agreement with Third Party landowners. Link to Lindlings / Long Chaulden

Proposed vehicular Minor Access Road for restricted number of dwellings. Minimum 4.8m wide. Include Foot/ cycle ways as necessary. Links to Campion Road, Furze Road and Lindlings. Foot/ cycleway link to Sundew Road and Chaulden Lane.

Possible emergency access to Chaulden Lane

Possible foot / cycle link B Added indicative internal roads,and footway route to Winkwell. 20.7.12 DGS NJM A Minor access amendments 15.5.12 DGS NJM to Chaulden Lane Existing footway Rev Description Date Drawn Checked in playing field Revisions Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: Possible pedestrian or 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 cyclist route to Winkwell Email [email protected] www.stomor.com

Project

Land at Fields End, Hemel Hempstead

Drawing Description

Potential Means of Access Plan

Scale Date Drawn By Checked By 1:5000 @ A3 10/04/12 LAF DGS

Client Architect

Notes Drawing Do not scale off the drawing. Number Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-23-B to the attention of the engineer immediately. APPENDIX G

19 Walsworth Road Hitchin Hertfordshire SG4 9SP

Tel: 01462 615433 Fax: 01462 615425

Email: [email protected] Web: www.stomor.com

Our Ref: ST2189/120322-hcce James Dale Environment Department Hertfordshire County Council County Hall, Pegs Lane, Hertford, SG13 8DN

22nd March 2012

Dear James,

Land at Fields End, West of Hemel Hempstead, Herts Means of Access and Traffic Appraisal for Core Strategy Submission

Thank you for meeting with me at short notice at County Hall on 12th March 2012, in connection with the above site.

As discussed, we have been commissioned by Clients to prepare a Means of Access and Traffic Appraisal in support of their submission. Please find attached a copy of drawing number 4107 301 prepared by Vincent and Gorbing, which shows the land in question, with ownership information.

It is the intention to prepare our appraisal based on the following development scenario:-

 Provision of approximately 900 residential dwellings.  Provision of a 2fe Primary School  Small doctors surgery  Community use area

In order to carry out the above assessment, the purpose of this meeting was to discuss your requirements and agree a scope for the work necessary.

With respect to access arrangements, I confirm that we will be seeking to maximise the potential traffic distribution arising from the site uses to minimise concentration of traffic on the surrounding road network, and to this end we will investigate several potential access locations. As discussed, it

Stomor Ltd: Registered Company No 6460779 Directors: Duncan Stoten BSc CEng MICE MCIHT Registered Office: 32 Beehive Lane, Welwyn Garden City, Herts. AL7 4BQ Nicola Morris MEng CEng CEnv MICE MCIHT

is clear that the primary means of vehicular access will be taken from a new junction at Long Chaulden, with a further access being provided from the end of The Avenue. Due regard will be given to the road hierarchy when proposing the internal road arrangement for the development. It may be that measures will be taken within the site in order to control the proportion of traffic which uses these two access points. We will also consider a vehicular connection form the HCC owned land to the south. Further access points will be considered from residential areas to the east, and possibly to the south. These may be suitable for limited development, or cycle/ pedestrian/ emergency routes depending on the outcome of our investigations.

With respect to the junctions you would expect to see considered and assessed, these are listed below:-

a. Long Chaulden between Newlands Road and Middlehill for the AM and PM peak periods. b. Long Chaulden junction with Boxted Road for the AM and PM peak periods. c. Warners End Road junction with Northridge Way for the AM and PM peak periods. d. Leighton Buzzard Road roundabout junction with Warners End Road for the AM and PM peak periods. e. Long Chaulden junction with Northridge Way for the AM and PM peak periods. f. The Avenue/Boxted Road for the AM and PM peak periods.

It may be that as development proposals proceed towards detailed planning applications in due course, further junctions may be identified, and these will be considered at the appropriate time. As agreed, we would not be expected to assess the Plough Roundabout at this stage.

With regard to the proposed school, we intend to site this in a suitable location within the development area, in order to maximise its sustainability. We would also seek to maximise potential footway and cycle links both within the site and to surrounding areas.

We have reviewed the previous reports prepared in connection with vehicle trip generation at this site, and have noted the following previously proposed rates as follows:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

Dennis Wilson 2000 - - 0.57 - - 0.58

HCC 2000 - - 0.95 - - 0.94

WSP 2006 0.13 0.5 0.63 0.42 0.21 0.63

2

HCC Hemel Hempstead Urban 0.262 0.641 0.903 0.658 0.354 1.012 Transport Model 2010

It can be seen that there is a variation in rates which have been proposed in the past, but we would be seeking to keep these to a sensible minimum by actively encouraging and maximising sustainable transport modes as part of our proposals. Inspection of the TRICS database indicates the following trip rates for residential use as follows:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

0.161 0.422 0.583 0.393 0.236 0.629

In the light of the above, we would propose that for our assessment, we would use the following average residential trip rates:-

AM 8:00am-9:00am PM 5:00pm-6:00pm

Arrivals Departures Two Way Arrivals Departures Two Way

0.2 0.5 0.7 0.4 0.25 0.65

We would be grateful if you could confirm that these trip rates are acceptable for the analysis we intend to carry out.

We have had an initial discussion with Sue Jackson as you suggested, and at this stage would not envisage a HHUT model re run for the purposes of our assessment, as this would only factor in our development and not the entire Hemel Hempstead scenario. However, we could provide you with our trip data if it would be of assistance for inclusion in subsequent model runs if you require.

We have noted that the Highways Agency have made representations to Dacorum BC on the pre – submission core strategy regarding possible effects of our development on Junction 20 of the M25. We intend to carry out liaison with them shortly to initiate discussions in this regard, to determine their requirements.

I trust the above is acceptable, and I look forward to your response at your earliest convenience.

3

Yours sincerely,

Duncan Stoten BSc CEng MICE MCIHT Director

cc Mark Wilson – Vincent and Gorbing

4

Duncan Stoten

From: James Dale [[email protected]] Sent: 13 June 2012 23:01 To: Duncan Stoten Subject: RE: Land at Fields End Farm, Hemel Hempstead

Duncan

I'm sorry I thought I had replied to you.

Thank you for the letter (22 March 2012), at this stage it appears the main point is to reach an agreement on the trip rate. On this issue I can confirm the trip rate you have put forward in your letter is acceptable to the highway authority.

We have discussed the principle of an appropriate access layout at length. You have made reference to several broad locations and I look forward to seeing more detail on this.

Regarding testing existing junctions further afield. As you aware, it is difficult to predict which junctions will require further capacity testing without knowing how much of a development is going to be served from which access. As you state in your letter, as the details of the proposal come forward the scoping can be discussed in more detail.

James

From: Duncan Stoten [mailto:[email protected]] Sent: 13 June 2012 16:08 To: [email protected] Cc: James Dale Subject: Land at Fields End Farm, Hemel Hempstead

James

Further to my letter dated 22nd March 2012, and recent email forwarded by Matt Wood, I do not seem to have received a response to date.

I would be grateful if you could confirm that the parameters proposed are acceptable as soon as possible, as I have had to progress with the Means of Access, Transport and Sustainabilty report.

Thank you for your assistance.

Duncan Stoten

______

Duncan Stoten BSc CEng MICE MIHT Director email [email protected]

1 APPENDIX H

8:00 - 9:00 AM WARMARK ROAD

8(0) 1(0) 9(0)

1(0) JUNCTION 2

1(0) 4(0) 381(6) 324(13) BOXTED ROAD 576(21) 14(0) 29(0) 129(1) 234(5)

4(0) 511(12) JUNCTION 5 JUNCTION 4 85(8) 493(10) 267(7) 102(2) 106(2) 350(7) 167(0) 48(1) 0(0) 177(0) 82(5) 278(14) 603(10) 364(8) 219(8) 226(3) 177(6) LONG CHAULDEN WARNERS END ROAD THE AVENUE 332(5) SITE JUNCTION 6 ACCESS 230(15) 223(1) 158(6) 283(9) 364(21)

205(5) 231(5)

SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS ROAD NORTHRIDGE A4148 38(0) 455(9)

58(2) JUNCTION 3 LONG CHAULDEN 246(4)

Rev Description Date Drawn Checked Revisions

Registered Office: 1(0) 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 158(4) 309(15) Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Current Traffic Flows - 27th March 2012 AM Peak 0800 - 0900

Scale Date Drawn By Checked By NTS 16/04/12 LAF DGS

Client Architect SITE ACCESS

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-16 to the attention of the engineer immediately. 17:00 - 18:00 WARMARK ROAD

2(0) 0(0) 6(0)

JUNCTION 2 2(0)

3(0) 3(0) 357(4) 358(7) BOXTED ROAD 431(7) 17(0) 130(1) 134(1) 147(0)

1(0) 337(4) JUNCTION 5 JUNCTION 4 390(6) 112(3) 448(6) 92(4) 231(0) 215(3) 233(3) 12(0) 0(0) 48(2) 123(4) 451(8) 285(2) 674(10) 345(1) 123(2) 232(3) LONG CHAULDEN WARNERS END ROAD THE AVENUE 221(4) SITE JUNCTION 6 ACCESS 349(3) 178(1) 213(2) 164(1) 636(4)

233(7) 247(4)

SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS ROAD NORTHRIDGE A4148 43(0) 369(6)

21(0) JUNCTION 3 LONG CHAULDEN 202(5)

Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 323(6) 441(4) 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Current Traffic Flows - 27th March 2012 PM Peak - 1700 - 1800

Scale Date Drawn By Checked By NTS 16/04/12 LAF DGS

SITE Client Architect ACCESS

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-17 to the attention of the engineer immediately. Traffic Queues WARMARK ROAD Peak AM Period

Time Vehicles Time Vehicles 7:35 0 7:30 2 7:50 8 JUNCTION 2 8:00 3 8:00 6 8:10 8 8:05 7 Time Vehicles Time Vehicles 8:15 3 Time Vehicles 8:20 40-50 8:55 7 9:00 10 7:30 0 7:30 0 9:00 11 7:30 0 8:00 0 8:00 0 9:10 2 7:50 2 8:00 0 Time Vehicles 9:00 0 9:00 0 Time Vehicles JUNCTION 5 8:15 0 7:35 0 8:25 0 8:00 3 7:10 0 8:55 3 8:15 10 7:35 3 9:00 0 8:20 12 8:20 0 BOXTED ROAD 9:10 0 9:00 0 9:00 0 WARNERS END ROAD LONG CHAULDEN Time Vehicles JUNCTION 4 JUNCTION6 7:30 0 Time Vehicles 8:00 0 8:15 2 7:30 0 THE AVENUE 8:55 4 8:00 0 8:15 0 Time Vehicles SITE ACCESS 8:55 0 Time Vehicles 9:00 0 7:35 0 LEIGHTON BUZZARD 8:20 0 ROAD 9:00 0 A4148 SITE ACCESS NORTHRIDGE JUNCTION 1

JUNCTION 3 LONG CHAULDEN Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project

LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Existing Traffic Queues AM 27th and 28th March 2012

Scale Date Drawn By Checked By NTS 10/05/12 LAF DGS

Client Architect SITE ACCESS

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-28 to the attention of the engineer immediately. APPENDIX I

Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project

Land at Fields End, Hemel Hempstead

Drawing Description Roundabout Junction Between Boxted Road and The Avenue

Scale Date Drawn By Checked By 1:500 12/04/12 LAF DGS

Client Architect

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-24 to the attention of the engineer immediately. Page 1 of 8

ARCADY 7 Version: 7.0.0.99 [10 July 2009] © Copyright Transport Research Laboratory 2009 For sales and distribution information, program advice and maintenance, contact TRL: Tel: +44 (0)1344 770758 E-mail: [email protected] Web: www.trlsoftware.co.uk The users of this computer program for the solution of an engineering problem are in no way relieved of their responsibility for the correctness of the solution

File: Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\ARCADY\Junction 2\Junction 2-2012-existing-AM.arc7 Report generation date: 22/05/2012 15:57:39

File summary

File Description

Title Boxted Road/The Avenue Roundabout Location Hemel Hempstead Site Number ST-2189 Date 10/05/2012 Status (new file) Client Taylor Wiompey Strategic Land Jobnumber ST-2189 Enumerator STOMORLTD\duncan Description AM Peak Hour 2012 - Existing. Results Upto Date True

Analysis Options

RFC Threshold Vehicle Length (m) Do Queue Variations 0.85 5.75

Sorting and Display

Show Arm Names Arm Grouping Sorting Direction Sorting Type Data Matrix Style Time Style Yes Order Ascending Numerical By Destination Absolute Time

Units

Distance Units Speed Units Traffic Units Input Traffic Units Results Flow Units Average Delay Units Total Delay Units Rate Of Delay Units m kph Veh Veh perHour min -Min perMin

A2 - (Default Analysis Set) - D1 - Existing 2012, AM 0800 - 0900

Data Errors and Warnings No errors or warnings

Analysis Set Details

Include In Use Specific Demand Network Flow Network Capacity Reason For Name Description Locked Report Demand Set Set Scaling Factor (%) Scaling Factor (%) Scaling Factors (Default Yes (D1) 100.000 100.000 Analysis Set)

Demand Set Details

Time Start Finish Traffic Scenario Run Use Time Time Name Period Description Locked Relationship Time Time Profile Name Automatically Relationship Period Segment Name (HH:mm) (HH:mm) Length Length Type

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(min) (min) Existing 2012, AM Existing Peak Hour ONE AM 0800 - Yes 07:45 09:15 90 15 2012 Flows HOUR 0800 - 0900 0900 Roundabout Network

Roundabout Type(s)

ID Name Arm Order Roundabout Type Grade Separated Large Roundabout Do Geometric Delay 1 Boxted Road/The AvenueRoundabout 1,2,3,4 Standard

Roundabout Network Options

Driving Side Lighting Road Surface In London Left Normal/unknown ((Mini-roundabouts only)) Arms

Arms

ID Name Description 1 Boxted Road North Single Carriageway 2 Warmark Road Single Carriageway 3 Boxted Road South Single Carriageway 4 The Avenue Single Carriageway

Capacity Options

Arm Minimum Capacity (PCU/hr) Maximum Capacity (PCU/hr) Assume Flat Start Profile Initial Queue (PCU) Boxted Road North 0.00 99999.00 0.00 Warmark Road 0.00 99999.00 0.00 Boxted Road South 0.00 99999.00 0.00 The Avenue 0.00 99999.00 0.00

Standard Geometry

V - Approach road E - Entry l' - Effective flare R - Entry D - Inscribed circle PHI - Conflict Exit Arm half-width (m) width (m) length (m) radius (m) diameter (m) (entry) angle (deg) Only Boxted Road North 3.40 5.00 6.00 10.00 24.00 31.00 Warmark Road 2.50 3.80 3.50 13.50 24.50 27.50 Boxted Road South 3.50 4.50 9.00 20.00 24.00 19.00 The Avenue 3.45 5.10 12.00 29.00 24.50 17.00

Pedestrian Crossings

Arm Crossing Type Boxted Road North None Warmark Road None Boxted Road South None The Avenue None

Arm Slope/ Intercept and Capacity

Slope and Intercept used in model

Arm Enter Directly Slope Intercept (PCU/hr) Final Slope Final Intercept (PCU/hr) Boxted Road North ((calculated)) ((calculated)) 0.548 1224.132 Warmark Road ((calculated)) ((calculated)) 0.498 923.541 Boxted Road South ((calculated)) ((calculated)) 0.599 1333.036 The Avenue ((calculated)) ((calculated)) 0.635 1476.488 The slope and intercept shown above include any corrections and adjustments.

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Traffic Flows

Demand Set Data Options

Vehicle Vehicle Vehicle PCU Estimate Turning Turning Turning Default Mix Mix Mix Default Vehicle Mix Factor from Proportions Proportions Proportions Vehicle Varies Varies Varies Turning Source for a HV entry/exit Vary Over Vary Over Vary Over Mix Over Over Over Proportions (PCU) counts Time Turn Entry Time Turn Entry HV Yes Yes Yes 2.00 Yes Yes Percentages Entry Flows

General Flows Data

Arm Profile Type Use Turning Counts Average Demand Flow (Veh/hr) Flow Scaling Factor (%) PHF Boxted Road North ONE HOUR Yes 396.00 100.000 N/A Warmark Road ONE HOUR Yes 18.00 100.000 N/A Boxted Road South ONE HOUR Yes 357.00 100.000 N/A The Avenue ONE HOUR Yes 225.00 100.000 N/A Direct/Resultant Flows

Direct Flows Data

Direct Demand Direct Demand DirectDemandEntryFlowInPCU Direct Demand Exit Time Segment Arm Pedestrian Flow Entry Flow (Veh/hr) (PCU/hr) Flow (Veh/hr) (Ped/hr) 07:45-08:00 Boxted Road North 298.13 302.63 N/A N/A 07:45-08:00 Warmark Road 13.55 13.55 N/A N/A 07:45-08:00 Boxted Road South 268.77 278.53 N/A N/A 07:45-08:00 The Avenue 169.39 170.15 N/A N/A 08:00-08:15 Boxted Road North 356.00 377.96 N/A N/A 08:00-08:15 Warmark Road 16.18 18.05 N/A N/A 08:00-08:15 Boxted Road South 320.94 369.68 N/A N/A 08:00-08:15 The Avenue 202.27 220.20 N/A N/A 08:15-08:30 Boxted Road North 436.00 462.91 N/A N/A 08:15-08:30 Warmark Road 19.82 22.11 N/A N/A 08:15-08:30 Boxted Road South 393.06 452.77 N/A N/A 08:15-08:30 The Avenue 247.73 269.68 N/A N/A 08:30-08:45 Boxted Road North 436.00 462.91 N/A N/A 08:30-08:45 Warmark Road 19.82 22.11 N/A N/A 08:30-08:45 Boxted Road South 393.06 452.77 N/A N/A 08:30-08:45 The Avenue 247.73 269.68 N/A N/A 08:45-09:00 Boxted Road North 356.00 374.25 N/A N/A 08:45-09:00 Warmark Road 16.18 16.99 N/A N/A 08:45-09:00 Boxted Road South 320.94 336.98 N/A N/A 08:45-09:00 The Avenue 202.27 212.38 N/A N/A 09:00-09:15 Boxted Road North 298.13 313.41 N/A N/A 09:00-09:15 Warmark Road 13.55 14.23 N/A N/A 09:00-09:15 Boxted Road South 268.77 282.21 N/A N/A 09:00-09:15 The Avenue 169.39 177.86 N/A N/A Turning Proportions

Turning Counts or Proportions (Veh/hr) - Roundabout 1 (for whole period)

To 1 2 3 4 1 0.00 1.00 381.00 14.00

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2 8.00 0.00 9.00 1.00 From 3 324.00 4.00 0.00 29.00 4 48.00 0.00 177.00 0.00

Turning Proportions (Veh) - Roundabout 1 (for whole period)

To 1 2 3 4 1 0.00 0.00 0.96 0.04 From 2 0.44 0.00 0.50 0.06 3 0.91 0.01 0.00 0.08 4 0.21 0.00 0.79 0.00 Vehicle Mix

Average PCU Per Vehicle - Roundabout 1 - (07:45-08:00)

To 1 2 3 4 1 1.00 1.00 1.02 1.00 From 2 1.00 1.00 1.00 1.00 3 1.04 1.00 1.00 1.00 4 1.02 1.00 1.00 1.00

Heavy Vehicle Percentages - Roundabout 1 - (07:45-08:00)

To 1 2 3 4 1 0.00 0.00 1.57 0.00 From 2 0.00 0.00 0.00 0.00 3 4.00 0.00 0.00 0.00 4 2.10 0.00 0.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:00-08:15)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:00-08:15)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:15-08:30)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:15-08:30)

To 1 2 3 4 1 0.00 0.00 6.25 4.45

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2 8.85 0.00 15.00 2.50 From 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:30-08:45)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:30-08:45)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:45-09:00)

To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:45-09:00)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (09:00-09:15)

To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (09:00-09:15)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00 Results

Results Summary

Total Average Max Max Total Total Rate Of Inclusive Inclusive Max Max Queueing Queueing Intercept Arm Delay Queue Demand Arrivals Queueing Queueing Queueing Slope RFC LOS Delay Delay (PCU/hr) (min) (Veh) (Veh/hr) (Veh) Delay Total Average (Veh-min) (min) (Veh- Delay Delay

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min/min) (Veh-min) (min) Boxted Road North 0.42 0.10 0.72 A 363.30 544.96 47.18 0.09 0.52 47.18 0.09 0.548 1224.132 Warmark Road 0.04 0.12 0.04 A 16.49 24.74 2.59 0.10 0.03 2.59 0.10 0.498 923.541 Boxted Road South 0.34 0.08 0.54 A 326.83 490.24 34.55 0.07 0.38 34.55 0.07 0.599 1333.036 The Avenue 0.22 0.07 0.29 A 206.30 309.46 19.32 0.06 0.21 19.32 0.06 0.635 1476.488

Main Results

Main results: (07:45-08:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 298.13 74.53 296.71 284.96 135.79 0.00 1132.59 908.34 0.263 0.00 0.35 Warmark Road 13.55 3.39 13.47 3.75 428.75 0.00 707.94 198.30 0.019 0.00 0.02 Boxted Road South 268.77 67.19 267.71 424.99 17.23 0.00 1276.39 1210.49 0.211 0.00 0.27 The Avenue 169.39 42.35 168.80 32.98 251.95 0.00 1304.48 683.31 0.130 0.00 0.15

Main results: (08:00-08:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 356.05 89.01 355.41 341.09 162.51 0.00 1061.75 865.16 0.335 0.34 0.50 Warmark Road 16.19 4.05 16.14 4.49 513.43 0.00 582.75 175.82 0.028 0.02 0.03 Boxted Road South 321.03 80.26 320.44 508.94 20.64 0.00 1146.24 1091.58 0.280 0.24 0.39 The Avenue 202.31 50.58 202.02 39.49 301.59 0.00 1154.85 635.33 0.175 0.14 0.21

Main results: (08:15-08:30)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 436.00 109.00 435.15 417.82 199.04 0.00 1041.00 865.02 0.419 0.50 0.71 Warmark Road 19.82 4.95 19.78 5.50 628.70 0.00 527.38 175.74 0.038 0.03 0.04 Boxted Road South 393.07 98.27 392.53 623.21 25.27 0.00 1143.35 1091.25 0.344 0.39 0.52 The Avenue 247.73 61.93 247.43 48.37 369.43 0.00 1109.17 635.20 0.223 0.21 0.29

Main results: (08:30-08:45)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 436.00 109.00 435.99 418.38 199.28 0.00 1040.86 865.02 0.419 0.71 0.72 Warmark Road 19.82 4.95 19.82 5.50 629.76 0.00 526.87 175.74 0.038 0.04 0.04 Boxted Road South 393.07 98.27 393.06 624.26 25.32 0.00 1143.32 1091.25 0.344 0.52 0.52 The Avenue 247.73 61.93 247.73 48.44 369.94 0.00 1108.83 635.20 0.223 0.29 0.29

Main results: (08:45-09:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 355.97 88.99 356.87 342.33 162.99 0.00 1075.10 874.52 0.331 0.72 0.50 Warmark Road 16.17 4.04 16.23 4.51 515.35 0.00 622.66 188.47 0.026 0.04 0.03 Boxted Road South 320.72 80.18 321.62 510.85 20.73 0.00 1256.28 1193.76 0.255 0.57 0.34 The Avenue 202.23 50.56 202.61 39.64 302.71 0.00 1213.56 655.85 0.167 0.30 0.20

Main results: (09:00-09:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 298.13 74.53 298.61 286.39 136.40 0.00 1089.77 874.60 0.274 0.50 0.38 Warmark Road 13.55 3.39 13.58 3.77 431.24 0.00 664.95 188.59 0.020 0.03 0.02 Boxted Road South 268.77 67.19 269.06 427.48 17.34 0.00 1259.17 1194.57 0.213 0.34 0.27 The Avenue 169.39 42.35 169.56 33.17 253.23 0.00 1245.37 655.99 0.136 0.20 0.16

Queueing Delay Results

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Queueing Delay results: (07:45-08:00)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 5.19 0.35 0.072 A A Warmark Road 0.28 0.02 0.086 A A Boxted Road South 3.90 0.26 0.059 A A The Avenue 2.19 0.15 0.053 A A

Queueing Delay results: (08:00-08:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 7.33 0.49 0.085 A A Warmark Road 0.42 0.03 0.106 A A Boxted Road South 5.68 0.38 0.073 A A The Avenue 3.12 0.21 0.063 A A

Queueing Delay results: (08:15-08:30)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 10.40 0.69 0.099 A A Warmark Road 0.57 0.04 0.118 A A Boxted Road South 7.64 0.51 0.080 A A The Avenue 4.22 0.28 0.070 A A

Queueing Delay results: (08:30-08:45)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 10.73 0.72 0.099 A A Warmark Road 0.58 0.04 0.118 A A Boxted Road South 7.82 0.52 0.080 A A The Avenue 4.30 0.29 0.070 A A

Queueing Delay results: (08:45-09:00)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 7.67 0.51 0.084 A A Warmark Road 0.41 0.03 0.099 A A Boxted Road South 5.28 0.35 0.064 A A The Avenue 3.07 0.20 0.059 A A

Queueing Delay results: (09:00-09:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 5.80 0.39 0.076 A A Warmark Road 0.32 0.02 0.092 A A Boxted Road South 4.15 0.28 0.061 A A The Avenue 2.40 0.16 0.056 A A Overview: Standard Roundabout Geomet ry

Standard Geometry

V - Approach D - Inscribed PHI - Conflict Final E - Entry l' - Effective R - Entry Exit Final Arm road half-width circle diameter (entry) angle Intercept width (m) flare length (m) radius (m) Only Slope (m) (m) (deg) (PCU/hr) Boxted 3.40 5.00 6.00 10.00 24.00 31.00 0.548 1224.132 Road North Warmark 2.50 3.80 3.50 13.50 24.50 27.50 0.498 923.541 Road Boxted 3.50 4.50 9.00 20.00 24.00 19.00 0.599 1333.036 Road South The Avenue 3.45 5.10 12.00 29.00 24.50 17.00 0.635 1476.488

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Overview: Time Segment Results

Time Segment Results

Pedestrian Start End Queueing Geometric Average Delay Demand Capacity Time Segment Arm RFC Demand Queue Queue Total Delay Total Delay Per Arriving (Veh/hr) (Veh/hr) (Ped/hr) (Veh) (Veh) (Veh-min) (Veh-min) Vehicle (min) Boxted 07:45-08:00 Road 298.13 1132.59 0.263 0.00 0.00 0.35 5.19 (16.21) 0.072 North Warmark 07:45-08:00 13.55 707.94 0.019 0.00 0.00 0.02 0.28 (22.65) 0.086 Road Boxted 07:45-08:00 Road 268.77 1276.39 0.211 0.00 0.00 0.27 3.90 (18.18) 0.059 South The 07:45-08:00 169.39 1304.48 0.130 0.00 0.00 0.15 2.19 (16.52) 0.053 Avenue Boxted 08:00-08:15 Road 356.05 1061.75 0.335 0.00 0.34 0.50 7.33 (15.51) 0.085 North Warmark 08:00-08:15 16.19 582.75 0.028 0.00 0.02 0.03 0.42 (20.31) 0.106 Road Boxted 08:00-08:15 Road 321.03 1146.24 0.280 0.00 0.24 0.39 5.68 (16.36) 0.073 South The 08:00-08:15 202.31 1154.85 0.175 0.00 0.14 0.21 3.12 (15.25) 0.063 Avenue Boxted 08:15-08:30 Road 436.00 1041.00 0.419 0.00 0.50 0.71 10.40 (15.50) 0.099 North Warmark 08:15-08:30 19.82 527.38 0.038 0.00 0.03 0.04 0.57 (20.30) 0.118 Road Boxted 08:15-08:30 Road 393.07 1143.35 0.344 0.00 0.39 0.52 7.64 (16.36) 0.080 South The 08:15-08:30 247.73 1109.17 0.223 0.00 0.21 0.29 4.22 (15.25) 0.070 Avenue Boxted 08:30-08:45 Road 436.00 1040.86 0.419 0.00 0.71 0.72 10.73 (15.50) 0.099 North Warmark 08:30-08:45 19.82 526.87 0.038 0.00 0.04 0.04 0.58 (20.30) 0.118 Road Boxted 08:30-08:45 Road 393.07 1143.32 0.344 0.00 0.52 0.52 7.82 (16.36) 0.080 South The 08:30-08:45 247.73 1108.83 0.223 0.00 0.29 0.29 4.30 (15.25) 0.070 Avenue Boxted 08:45-09:00 Road 355.97 1075.10 0.331 0.00 0.72 0.50 7.67 (15.66) 0.084 North Warmark 08:45-09:00 16.17 622.66 0.026 0.00 0.04 0.03 0.41 (21.56) 0.099 Road Boxted 08:45-09:00 Road 320.72 1256.28 0.255 0.00 0.57 0.34 5.28 (17.93) 0.064 South The 08:45-09:00 202.23 1213.56 0.167 0.00 0.30 0.20 3.07 (15.80) 0.059 Avenue Boxted 09:00-09:15 Road 298.13 1089.77 0.274 0.00 0.50 0.38 5.80 (15.66) 0.076 North Warmark 09:00-09:15 13.55 664.95 0.020 0.00 0.03 0.02 0.32 (21.58) 0.092 Road Boxted 09:00-09:15 Road 268.77 1259.17 0.213 0.00 0.34 0.27 4.15 (17.95) 0.061 South The 09:00-09:15 169.39 1245.37 0.136 0.00 0.20 0.16 2.40 (15.81) 0.056 Avenue

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ARCADY 7 Version: 7.0.0.99 [10 July 2009] © Copyright Transport Research Laboratory 2009 For sales and distribution information, program advice and maintenance, contact TRL: Tel: +44 (0)1344 770758 E-mail: [email protected] Web: www.trlsoftware.co.uk The users of this computer program for the solution of an engineering problem are in no way relieved of their responsibility for the correctness of the solution

File: Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\ARCADY\Junction 2\Junction 2-2012-existing-PM.arc7 Report generation date: 22/05/2012 15:58:37

File summary

File Description

Title Boxted Road/The Avenue Roundabout Location Hemel Hempstead Site Number ST-2189 Date 10/05/2012 Status (new file) Client Taylor Wiompey Strategic Land Jobnumber ST-2189 Enumerator STOMORLTD\duncan Description PM Peak Hour 2012 - Existing. Results Upto Date True

Analysis Options

RFC Threshold Vehicle Length (m) Do Queue Variations 0.85 5.75

Sorting and Display

Show Arm Names Arm Grouping Sorting Direction Sorting Type Data Matrix Style Time Style Yes Order Ascending Numerical By Destination Absolute Time

Units

Distance Units Speed Units Traffic Units Input Traffic Units Results Flow Units Average Delay Units Total Delay Units Rate Of Delay Units m kph Veh Veh perHour min -Min perMin

A2 - (Default Analysis Set) - D1 - Existing 2012, PM 1700 - 1800

Data Errors and Warnings No errors or warnings

Analysis Set Details

Include In Use Specific Demand Network Flow Network Capacity Reason For Name Description Locked Report Demand Set Set Scaling Factor (%) Scaling Factor (%) Scaling Factors (Default Yes (D1) 100.000 100.000 Analysis Set)

Demand Set Details

Time Start Finish Traffic Scenario Run Use Time Time Name Period Description Locked Relationship Time Time Profile Name Automatically Relationship Period Segment Name (HH:mm) (HH:mm) Length Length Type

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(min) (min) Existing 2012, PM Existing Peak Hour ONE PM 1700 - Yes 16:45 18:15 90 15 2012 Flows HOUR 1700 - 1800 1800 Roundabout Network

Roundabout Type(s)

ID Name Arm Order Roundabout Type Grade Separated Large Roundabout Do Geometric Delay 1 Boxted Road/The AvenueRoundabout 1,2,3,4 Standard

Roundabout Network Options

Driving Side Lighting Road Surface In London Left Normal/unknown ((Mini-roundabouts only)) Arms

Arms

ID Name Description 1 Boxted Road North Single Carriageway 2 Warmark Road Single Carriageway 3 Boxted Road South Single Carriageway 4 The Avenue Single Carriageway

Capacity Options

Arm Minimum Capacity (PCU/hr) Maximum Capacity (PCU/hr) Assume Flat Start Profile Initial Queue (PCU) Boxted Road North 0.00 99999.00 0.00 Warmark Road 0.00 99999.00 0.00 Boxted Road South 0.00 99999.00 0.00 The Avenue 0.00 99999.00 0.00

Standard Geometry

V - Approach road E - Entry l' - Effective flare R - Entry D - Inscribed circle PHI - Conflict Exit Arm half-width (m) width (m) length (m) radius (m) diameter (m) (entry) angle (deg) Only Boxted Road North 3.40 5.00 6.00 10.00 24.00 31.00 Warmark Road 2.50 3.80 3.50 13.50 24.50 27.50 Boxted Road South 3.50 4.50 9.00 20.00 24.00 19.00 The Avenue 3.45 5.10 12.00 29.00 24.50 17.00

Pedestrian Crossings

Arm Crossing Type Boxted Road North None Warmark Road None Boxted Road South None The Avenue None

Arm Slope/ Intercept and Capacity

Slope and Intercept used in model

Arm Enter Directly Slope Intercept (PCU/hr) Final Slope Final Intercept (PCU/hr) Boxted Road North ((calculated)) ((calculated)) 0.548 1224.132 Warmark Road ((calculated)) ((calculated)) 0.498 923.541 Boxted Road South ((calculated)) ((calculated)) 0.599 1333.036 The Avenue ((calculated)) ((calculated)) 0.635 1476.488 The slope and intercept shown above include any corrections and adjustments.

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Traffic Flows

Demand Set Data Options

Vehicle Vehicle Vehicle PCU Estimate Turning Turning Turning Default Mix Mix Mix Default Vehicle Mix Factor from Proportions Proportions Proportions Vehicle Varies Varies Varies Turning Source for a HV entry/exit Vary Over Vary Over Vary Over Mix Over Over Over Proportions (PCU) counts Time Turn Entry Time Turn Entry HV Yes Yes Yes 2.00 Yes Yes Percentages Entry Flows

General Flows Data

Arm Profile Type Use Turning Counts Average Demand Flow (Veh/hr) Flow Scaling Factor (%) PHF Boxted Road North ONE HOUR Yes 377.00 100.000 N/A Warmark Road ONE HOUR Yes 8.00 100.000 N/A Boxted Road South ONE HOUR Yes 491.00 100.000 N/A The Avenue ONE HOUR Yes 60.00 100.000 N/A Direct/Resultant Flows

Direct Flows Data

Direct Demand Direct Demand DirectDemandEntryFlowInPCU Direct Demand Exit Time Segment Arm Pedestrian Flow Entry Flow (Veh/hr) (PCU/hr) Flow (Veh/hr) (Ped/hr) 16:45-17:00 Boxted Road North 283.83 286.84 N/A N/A 16:45-17:00 Warmark Road 6.02 6.02 N/A N/A 16:45-17:00 Boxted Road South 369.65 375.66 N/A N/A 16:45-17:00 The Avenue 45.17 46.69 N/A N/A 17:00-17:15 Boxted Road North 338.92 359.65 N/A N/A 17:00-17:15 Warmark Road 7.19 8.16 N/A N/A 17:00-17:15 Boxted Road South 441.40 512.35 N/A N/A 17:00-17:15 The Avenue 53.94 58.73 N/A N/A 17:15-17:30 Boxted Road North 415.08 440.48 N/A N/A 17:15-17:30 Warmark Road 8.81 9.99 N/A N/A 17:15-17:30 Boxted Road South 540.60 627.49 N/A N/A 17:15-17:30 The Avenue 66.06 71.93 N/A N/A 17:30-17:45 Boxted Road North 415.08 440.48 N/A N/A 17:30-17:45 Warmark Road 8.81 9.99 N/A N/A 17:30-17:45 Boxted Road South 540.60 627.49 N/A N/A 17:30-17:45 The Avenue 66.06 71.93 N/A N/A 17:45-18:00 Boxted Road North 338.92 357.21 N/A N/A 17:45-18:00 Warmark Road 7.19 7.55 N/A N/A 17:45-18:00 Boxted Road South 441.40 463.47 N/A N/A 17:45-18:00 The Avenue 53.94 56.64 N/A N/A 18:00-18:15 Boxted Road North 283.83 299.15 N/A N/A 18:00-18:15 Warmark Road 6.02 6.32 N/A N/A 18:00-18:15 Boxted Road South 369.65 388.13 N/A N/A 18:00-18:15 The Avenue 45.17 47.43 N/A N/A Turning Proportions

Turning Counts or Proportions (Veh/hr) - Roundabout 1 (for whole period)

To 1 2 3 4 1 0.00 3.00 357.00 17.00

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2 2.00 0.00 6.00 0.00 From 3 358.00 3.00 0.00 130.00 4 12.00 0.00 48.00 0.00

Turning Proportions (Veh) - Roundabout 1 (for whole period)

To 1 2 3 4 1 0.00 0.01 0.95 0.05 From 2 0.25 0.00 0.75 0.00 3 0.73 0.01 0.00 0.26 4 0.20 0.00 0.80 0.00 Vehicle Mix

Average PCU Per Vehicle - Roundabout 1 - (16:45-17:00)

To 1 2 3 4 1 1.00 1.00 1.01 1.00 From 2 1.00 1.00 1.00 1.00 3 1.02 1.00 1.00 1.01 4 1.00 1.00 1.04 1.00

Heavy Vehicle Percentages - Roundabout 1 - (16:45-17:00)

To 1 2 3 4 1 0.00 0.00 1.12 0.00 From 2 0.00 0.00 0.00 0.00 3 1.95 0.00 0.00 0.77 4 0.00 0.00 4.20 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:00-17:15)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:00-17:15)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:15-17:30)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:15-17:30)

To 1 2 3 4 1 0.00 0.00 6.25 4.45

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2 8.85 0.00 15.00 2.50 From 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:30-17:45)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:30-17:45)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:45-18:00)

To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:45-18:00)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (18:00-18:15)

To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (18:00-18:15)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00 Results

Results Summary

Total Average Max Max Total Total Rate Of Inclusive Inclusive Max Max Queueing Queueing Intercept Arm Delay Queue Demand Arrivals Queueing Queueing Queueing Slope RFC LOS Delay Delay (PCU/hr) (min) (Veh) (Veh/hr) (Veh) Delay Total Average (Veh-min) (min) (Veh- Delay Delay

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min/min) (Veh-min) (min) Boxted Road North 0.37 0.08 0.59 A 345.86 518.79 39.80 0.08 0.44 39.80 0.08 0.548 1224.132 Warmark Road 0.01 0.10 0.02 A 7.32 10.99 1.02 0.09 0.01 1.02 0.09 0.498 923.541 Boxted Road South 0.48 0.10 0.94 A 449.15 673.73 56.46 0.08 0.63 56.46 0.08 0.599 1333.036 The Avenue 0.06 0.06 0.07 A 55.03 82.55 4.50 0.05 0.05 4.50 0.05 0.635 1476.488

Main Results

Main results: (16:45-17:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 283.82 70.96 282.58 278.87 38.27 0.00 1189.71 836.12 0.239 0.00 0.31 Warmark Road 6.02 1.51 5.99 4.50 316.35 0.00 763.86 165.94 0.008 0.00 0.01 Boxted Road South 369.65 92.41 368.08 308.10 14.24 0.00 1303.32 1265.05 0.284 0.00 0.39 The Avenue 45.17 11.29 45.02 110.20 272.12 0.00 1258.09 820.52 0.036 0.00 0.04

Main results: (17:00-17:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 338.97 84.74 338.45 333.71 45.80 0.00 1128.04 795.20 0.301 0.30 0.43 Warmark Road 7.20 1.80 7.18 5.38 378.87 0.00 637.28 145.30 0.011 0.01 0.01 Boxted Road South 441.57 110.39 440.44 368.99 17.06 0.00 1139.66 1109.17 0.387 0.34 0.63 The Avenue 53.95 13.49 53.89 131.87 325.62 0.00 1138.17 786.95 0.047 0.04 0.05

Main results: (17:15-17:30)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 415.09 103.77 414.46 408.78 56.10 0.00 1122.07 795.07 0.370 0.43 0.58 Warmark Road 8.81 2.20 8.79 6.59 463.97 0.00 597.21 145.23 0.015 0.01 0.01 Boxted Road South 540.60 135.15 539.53 451.87 20.89 0.00 1137.14 1108.74 0.475 0.63 0.90 The Avenue 66.06 16.52 66.00 161.54 398.88 0.00 1088.88 786.85 0.061 0.05 0.06

Main results: (17:30-17:45)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 415.09 103.77 415.08 409.56 56.15 0.00 1122.04 795.07 0.370 0.58 0.58 Warmark Road 8.81 2.20 8.81 6.61 464.62 0.00 596.90 145.23 0.015 0.01 0.01 Boxted Road South 540.60 135.15 540.58 452.51 20.92 0.00 1137.12 1108.74 0.475 0.90 0.90 The Avenue 66.06 16.52 66.06 161.84 399.65 0.00 1088.36 786.85 0.061 0.06 0.06

Main results: (17:45-18:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 338.90 84.72 339.54 335.45 45.91 0.00 1136.31 803.78 0.298 0.59 0.43 Warmark Road 7.19 1.80 7.21 5.41 380.05 0.00 689.92 160.40 0.010 0.02 0.01 Boxted Road South 440.98 110.25 442.79 370.14 17.11 0.00 1258.12 1222.67 0.351 0.99 0.54 The Avenue 53.93 13.48 54.01 132.54 327.36 0.00 1197.91 809.16 0.045 0.07 0.05

Main results: (18:00-18:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 283.83 70.96 284.20 280.44 38.43 0.00 1140.45 803.82 0.249 0.43 0.33 Warmark Road 6.02 1.51 6.03 4.52 318.11 0.00 721.25 160.51 0.008 0.01 0.01 Boxted Road South 369.65 92.41 370.16 309.82 14.32 0.00 1260.98 1223.82 0.293 0.54 0.42 The Avenue 45.17 11.29 45.21 110.82 273.66 0.00 1232.40 809.31 0.037 0.05 0.04

Queueing Delay Results

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Queueing Delay results: (16:45-17:00)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 4.56 0.30 0.066 A A Warmark Road 0.12 0.01 0.079 A A Boxted Road South 5.76 0.38 0.064 A A The Avenue 0.55 0.04 0.049 A A

Queueing Delay results: (17:00-17:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 6.27 0.42 0.076 A A Warmark Road 0.17 0.01 0.095 A A Boxted Road South 9.15 0.61 0.086 A A The Avenue 0.73 0.05 0.055 A A

Queueing Delay results: (17:15-17:30)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 8.54 0.57 0.085 A A Warmark Road 0.22 0.01 0.102 A A Boxted Road South 13.04 0.87 0.100 A A The Avenue 0.95 0.06 0.059 A A

Queueing Delay results: (17:30-17:45)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 8.75 0.58 0.085 A A Warmark Road 0.22 0.01 0.102 A A Boxted Road South 13.48 0.90 0.101 A A The Avenue 0.97 0.06 0.059 A A

Queueing Delay results: (17:45-18:00)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 6.56 0.44 0.075 A A Warmark Road 0.16 0.01 0.088 A A Boxted Road South 8.38 0.56 0.074 A A The Avenue 0.72 0.05 0.052 A A

Queueing Delay results: (18:00-18:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 5.09 0.34 0.070 A A Warmark Road 0.13 0.01 0.084 A A Boxted Road South 6.37 0.42 0.067 A A The Avenue 0.58 0.04 0.051 A A Overview: Standard Roundabout Geomet ry

Standard Geometry

V - Approach D - Inscribed PHI - Conflict Final E - Entry l' - Effective R - Entry Exit Final Arm road half-width circle diameter (entry) angle Intercept width (m) flare length (m) radius (m) Only Slope (m) (m) (deg) (PCU/hr) Boxted 3.40 5.00 6.00 10.00 24.00 31.00 0.548 1224.132 Road North Warmark 2.50 3.80 3.50 13.50 24.50 27.50 0.498 923.541 Road Boxted 3.50 4.50 9.00 20.00 24.00 19.00 0.599 1333.036 Road South The Avenue 3.45 5.10 12.00 29.00 24.50 17.00 0.635 1476.488

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Overview: Time Segment Results

Time Segment Results

Pedestrian Start End Queueing Geometric Average Delay Demand Capacity Time Segment Arm RFC Demand Queue Queue Total Delay Total Delay Per Arriving (Veh/hr) (Veh/hr) (Ped/hr) (Veh) (Veh) (Veh-min) (Veh-min) Vehicle (min) Boxted 16:45-17:00 Road 283.82 1189.71 0.239 0.00 0.00 0.31 4.56 (16.29) 0.066 North Warmark 16:45-17:00 6.02 763.86 0.008 0.00 0.00 0.01 0.12 (22.65) 0.079 Road Boxted 16:45-17:00 Road 369.65 1303.32 0.284 0.00 0.00 0.39 5.76 (18.54) 0.064 South The 16:45-17:00 45.17 1258.09 0.036 0.00 0.00 0.04 0.55 (16.06) 0.049 Avenue Boxted 17:00-17:15 Road 338.97 1128.04 0.301 0.00 0.30 0.43 6.27 (15.51) 0.076 North Warmark 17:00-17:15 7.20 637.28 0.011 0.00 0.01 0.01 0.17 (19.98) 0.095 Road Boxted 17:00-17:15 Road 441.57 1139.66 0.387 0.00 0.34 0.63 9.15 (16.24) 0.086 South The 17:00-17:15 53.95 1138.17 0.047 0.00 0.04 0.05 0.73 (15.25) 0.055 Avenue Boxted 17:15-17:30 Road 415.09 1122.07 0.370 0.00 0.43 0.58 8.54 (15.51) 0.085 North Warmark 17:15-17:30 8.81 597.21 0.015 0.00 0.01 0.01 0.22 (19.97) 0.102 Road Boxted 17:15-17:30 Road 540.60 1137.14 0.475 0.00 0.63 0.90 13.04 (16.23) 0.100 South The 17:15-17:30 66.06 1088.88 0.061 0.00 0.05 0.06 0.95 (15.24) 0.059 Avenue Boxted 17:30-17:45 Road 415.09 1122.04 0.370 0.00 0.58 0.58 8.75 (15.51) 0.085 North Warmark 17:30-17:45 8.81 596.90 0.015 0.00 0.01 0.01 0.22 (19.97) 0.102 Road Boxted 17:30-17:45 Road 540.60 1137.12 0.475 0.00 0.90 0.90 13.48 (16.23) 0.101 South The 17:30-17:45 66.06 1088.36 0.061 0.00 0.06 0.06 0.97 (15.24) 0.059 Avenue Boxted 17:45-18:00 Road 338.90 1136.31 0.298 0.00 0.59 0.43 6.56 (15.62) 0.075 North Warmark 17:45-18:00 7.19 689.92 0.010 0.00 0.02 0.01 0.16 (21.56) 0.088 Road Boxted 17:45-18:00 Road 440.98 1258.12 0.351 0.00 0.99 0.54 8.38 (17.93) 0.074 South The 17:45-18:00 53.93 1197.91 0.045 0.00 0.07 0.05 0.72 (15.80) 0.052 Avenue Boxted 18:00-18:15 Road 283.83 1140.45 0.249 0.00 0.43 0.33 5.09 (15.62) 0.070 North Warmark 18:00-18:15 6.02 721.25 0.008 0.00 0.01 0.01 0.13 (21.58) 0.084 Road Boxted 18:00-18:15 Road 369.65 1260.98 0.293 0.00 0.54 0.42 6.37 (17.95) 0.067 South The 18:00-18:15 45.17 1232.40 0.037 0.00 0.05 0.04 0.58 (15.81) 0.051 Avenue

file://Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\ARC... 22/05/2012 APPENDIX J

WARMARK ROAD EXISTING AM Key

Housing 0-2Km Flows - 59 Out , 23 In 10

Housing 2-5Km Flows - 162 Out , 65 In 15

Housing 5km + Flows - 229 Out , 92 In 20 JUNCTION 2 Total - 450 Out , 180 In 25

10% BOXTED ROAD 10 10% 1 6 90% - 106 5 15% 3 15 85% 15 20% 5 22 80% 39 5 9 43 52 JUNCTION 5 10% 2 15 90% 00 45% 00 JUNCTION 4 42 15% 7 39 85% 00 90% 246 32 95 119 14 41 53 108 20% 13 52 80% 00 -- 10% 28 13 4 11 00 00 00 00 10% 23 -- 10 13 18 22 106 00% 00 00 00 00 00(0)6 15 22 43 45% 99 -- 44 55 24 17 7 36(0)8 26 31 65 LONG CHAULDEN 45% 99 -- 44 55 50% 168 21 67 80 46 18 WARNERS END ROAD 100% 65 27 60% 00 1 JUNCTION 6 128 52 50% 00 2 -- 00 4 65 18 THE AVENUE 00 7 24 8 SITE 42 26 ACCESS 162 45% 31 50% 20 60% 65 303 154 109275(0)40 50% 77 SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS LONGCHAULDEN 4 ROAD - A4148 120 61 44 15 50% 20 NORTHRIDGE 2 40% 44 7 1 1 50% 77 1 5% 7 141 141 20 44 77 2 18 LONG 2 0 1 1 4 30 CHAULDEN JUNCTION 3 55 21(0)7 18 30 55 33% 1 1 67% 20 50% 000(0)1 3 4 8 Rev Description Date Drawn Checked 33% 2 5 67% 47 Revisions Registered Office: 40% 3 7 32 Beehive Lane, Welwyn Garden City, 80 7 Hertfordshire, AL7 4BQ 50% Design Office: 6 13 20 19 Walsworth Road, Hitchin, Herts, SG4 9SP 147 Tel 01462 615433 Fax 01462 615425 32 Email [email protected] www.stomor.com 59 Project LINDLINGS 95% Land at Fields End, Hemel Hempstead

Drawing Description Traffic Flows - Proposed Development AM - Housing 900 Units

Scale Date Drawn By Checked By NTS 23/03/12 LAF DGS

19 2 7 10 Client Architect SITE ACCESS 8 1 3 4

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-12 to the attention of the engineer immediately. WARMARK ROAD Notes Key 2 FE Primary School Community Pupil Vehicles 10 Long Chaulden 90% / 10% The Avenue All from Long Chaulden Later Analysis: 450 pupils x 20% by car, car share rate 1.4 10% of units at 20% by car Staff vehicles (AM only) 15 = 64 Vehicles (128 2-way pupil related) 18 in and 10 out - nominal Staff 50% from within develpoment JUNCTION 2 Community 20 Typical 42 in AM period 50% from east Total: 9 in and 5 out Totals 3 14 22 Pupils and Staff Total: 106 in and 64 out - AM BOXTED ROAD

2 3 2 1 4 JUNCTION 5 2 4 1 JUNCTION 4 2 22 13 5 4 3 14 22 14 1 4 13 0 13 13 0 6 6 1 26 3 13 5 4 4 LONG CHAULDEN WARNERS END ROAD 5 26 14 4 JUNCTION 6 32 17 4 THE AVENUE 5 1 2 SITE 4 1 ACCESS 4 1 13 6 14 32 5 57 0 3 SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS LONGLONGCHAULDENCHAULDEN ROAD - A4148 9 57 33 2 NORTHRIDGE NORTHRIDGE 4 25 3 14 2 25 2 4 4 14 LONG 4 1 5 16 CHAULDEN JUNCTION 3 2 4 21(0)4 14 5 23 19 1 25 14 Rev Description Date Drawn Checked 4 Revisions Registered Office: 32 Beehive Lane, Welwyn Garden City, 14 Hertfordshire, AL7 4BQ

5 Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 1 Email [email protected] www.stomor.com 19 Project LINDLINGS 14 Land at Fields End, Hemel Hempstead

Drawing Description Total Traffic Flows - Proposed Development AM - School and Community Uses

Scale Date Drawn By Checked By NTS 23/03/12 LAF DGS

0 0 Client Architect SITE ACCESS 0 0

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-13 to the attention of the engineer immediately. WARMARK ROAD

JUNCTION 2

BOXTED ROAD 10 11 48

1060(0) JUNCTION 5 JUNCTION 4 270 147 24 110 23 43 112 69 110 99 134 59 138(0)197(0) LONG CHAULDEN WARNERS END ROAD JUNCTION 6

THE AVENUE 6 7 SITE 42 ACCESS 82

365 197 SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS LONGCHAULDEN ROAD 219 168 NORTHRIDGEWAY A4148 15

168 100 2 12 JUNCTION 3 96 LONG CHAULDEN 167 8 Rev Description Date Drawn Checked 6 13 Revisions Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 93 Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Total Traffic Flows - Proposed Development AM

Scale Date Drawn By Checked By NTS 23/03/12 LAF DGS

19 Client Architect SITE ACCESS 8

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-14 to the attention of the engineer immediately. APPENDIX K

WARMARK ROAD

Key

Housing Traffic 216

Community use Traffic 3

JUNCTION 2 Total 219

BOXTED ROAD

18 85 53 18 0 JUNCTION 5 11 53 JUNCTION 4 123 2 125 216 3 219 10 14 1 15 0 0 85 50 85 64 103 50 87 84 3 5 131 136 LONG CHAULDEN WARNERS END ROAD 0 4 JUNCTION 6 85 THE AVENUE SITE ACCESS 84 131 3 5 151 156 81 SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS LONGLONGCHAULDENCHAULDEN ROAD - A4148 9 241 250 70 NORTHRIDGE NORTHRIDGE 11 2 3 72 110 72 70 2 8 4 LONG 5 4 1 114 3 CHAULDEN JUNCTION 3 110 4 114 3 7 74 73 1 Rev Description Date Drawn Checked 13 Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, 115 Hertfordshire, AL7 4BQ

Design Office: 1 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

116 Project

LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Total Traffic Flows - Proposed Development PM - Housing 900 Units

Scale Date Drawn By Checked By NTS 01/05/12 LAF DGS

Client Architect 10 SITE ACCESS 16

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-15 to the attention of the engineer immediately. 8:00 - 9:00 AM WARMARK ROAD Year 2031 Growth - 1.164%

8(0) 1(0) 9(0)

1(0) JUNCTION 2

1(0) 4(0) 443(7) 377(15) BOXTED ROAD 670(24) 14(0) 29(0) 150(1) 272(6)

4(0) 595(14) JUNCTION 5 JUNCTION 4 85(8) 574(12) 311(8) 119(2) 123(2) 407(8) 194(0) 48(1) 0(0) 177(0) 82(5) 324(16) 702(12) 424(9) 219(8) 263(3) 206(7) LONG CHAULDEN WARNERS END ROAD THE AVENUE 332(5) SITE JUNCTION 6 ACCESS 268(17) 260(1) 184(7) 329(10) 424(24)

205(5) 231(5)

SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS ROAD NORTHRIDGE A4148 38(0) 530(10)

58(2) JUNCTION 3 LONG CHAULDEN 246(4)

Rev Description Date Drawn Checked Revisions

1(0) Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP 158(4) 360(17) Tel 01462 615433 Fax 01462 615425 Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Traffic Flows - Existing Year 2012 plus Growth to 2031-AM

Scale Date Drawn By Checked By NTS 18/04/12 LAF DGS

SITE Client Architect ACCESS

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-18 to the attention of the engineer immediately. 17:00 - 18:00 WARMARK ROAD Year 2031 Growth - 1.164%

2(0) 0(0) 6(0)

JUNCTION 2 2(0)

3(0) 3(0) 416(5) 417(8) BOXTED ROAD 502(8) 17(0) 130(1) 156(1) 171(0)

1(0) 392(5) JUNCTION 5 JUNCTION 4 454(7) 112(3) 521(7) 107(5) 269(0) 250(3) 271(3) 12(0) 0(0) 48(2) 123(4) 525(9) 332(2) 785(12) 345(1) 143(2) 270(3) LONG CHAULDEN WARNERS END ROAD THE AVENUE 221(4) SITE JUNCTION 6 ACCESS 406(3) 207(1) 248(2) 191(1) 740(5)

233(7) 247(4)

SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS ROAD NORTHRIDGE A4148 43(0) 430(7)

21(0) JUNCTION 3 LONG CHAULDEN 202(5)

Rev Description Date Drawn Checked Revisions

Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 323(6) 513(5) Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Traffic Flows - Existing Year 2012 plus growth to 2031- PM

Scale Date Drawn By Checked By NTS 18/04/12 LAF DGS

Client Architect SITE ACCESS

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-19 to the attention of the engineer immediately. WARMARK ROAD YEAR 2031 + GROWTH + DEVELOPMENT AM

1(0)

8(0) 9(0) JUNCTION 2 1(0)

1(0) 4(0) 443(7) 377(15) BOXTED ROAD 670(24) 25(0) 77(0) 160(1) 272(6)

4(0) 701(14) JUNCTION 5 JUNCTION 4 85(8) 844(12) 458(8) 72(1) 287(0) 142(2) 123(2) 407(8) 194(0) 82(5) 367(16) 814(12) 493(9)

329(8) LONG CHAULDEN 362(3) 206(7) 529(5) WARNERS END ROAD JUNCTION 6

THE AVENUE 274(17) 267(1) SITE 226(7) 329(10) ACCESS 82(0) 424(24)

231(5)

197 (0) SITE JUNCTION 1 LEIGHTON BUZZARD ACCESS LONGCHAULDEN ROAD 168(0) NORTHRIDGE A4148 205(5) 53(0) 530(10)

168(0) 100(0) 2(0) 70(2) JUNCTION 3 96(0) LONG CHAULDEN 413(4) 8(0) Rev Description Date Drawn Checked 6(0) 13(0) Revisions Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP Tel 01462 615433 Fax 01462 615425 251(4) 360(17) Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Existing 2012 + Growth to 2031+ Development AM

Scale Date Drawn By Checked By NTS 19/04/12 LAF DGS

19(0) Client Architect SITE ACCESS 8(0)

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-20 to the attention of the engineer immediately. 17:00 - 18:00 WARMARK ROAD Year 2031 Growth - 1.164%

2(0) 0(0) 6(0)

JUNCTION 2 2(0)

3(0) 3(0) 416(5) 417(8) BOXTED ROAD 502(8) 35(0) 215(1) 174(1) 171(0)

1(0) 445(5) JUNCTION 5 JUNCTION 4 579(7) 112(3) 740(7) 117(5) 269(0) 265(3) 271(3) 23(0) 101(2) 123(4) 610(9) 382(2) 870(12) 481(1) 193(2) 270(3) 308(4) LONG CHAULDEN WARNERS END ROAD JUNCTION 6

406(3) 211(1) 333(2) 191(1) THE AVENUE 131(0) 233(7) 740(5) SITE ACCESS

84(0) 247(4) SITE LEIGHTON BUZZARD ACCESS ROAD 72(0) NORTHRIDGE A4148 JUNCTION 1 54(0) 430(7)

72(0)

114(0) 3(0) 26(0) JUNCTION 3 LONG CHAULDEN 276(5) 00(0) Rev Description Date Drawn Checked 3(0) 7(0) Revisions Registered Office: 32 Beehive Lane, Welwyn Garden City, Hertfordshire, AL7 4BQ

Design Office: 19 Walsworth Road, Hitchin, Herts, SG4 9SP 439(6) Tel 01462 615433 Fax 01462 615425 513(5) Email [email protected] www.stomor.com

Project LINDLINGS Land at Fields End, Hemel Hempstead

Drawing Description Existing 2012 + Growth to 2031 + Development PM

Scale Date Drawn By Checked By NTS 23/03/12 LAF DGS 10(0) SITE Client Architect ACCESS 16(0)

Notes Drawing Number Do not scale off the drawing. Only written dimensions should be taken. Any discrepancies or errors should be brought ST-2189-21 to the attention of the engineer immediately. APPENDIX L

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TRL LIMITED

(C) COPYRIGHT 2006

CAPACITIES, QUEUES, AND DELAYS AT 3 OR 4-ARM MAJOR/MINOR PRIORITY JUNCTIONS

PICADY 5.1 ANALYSIS PROGRAM RELEASE 4.0 (SEPT 2008)

ADAPTED FROM PICADY/3 WHICH IS CROWN COPYRIGHT BY PERMISSION OF THE CONTROLLER OF HMSO

------FOR SALES AND DISTRIBUTION INFORMATION, PROGRAM ADVICE AND MAINTENANCE CONTACT: TRL SOFTWARE BUREAU TEL: CROWTHORNE (01344) 770758, FAX: 770356 EMAIL: [email protected] ------

THE USER OF THIS COMPUTER PROGRAM FOR THE SOLUTION OF AN ENGINEERING PROBLEM IS IN NO WAY RELIEVED OF HIS/HER RESPONSIBILITY FOR THE CORRECTNESS OF THE SOLUTION

Run with file:- "Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\PICADY\Junction 1\AM-Peak-2031.vpi" (drive-on-the-left) at 09:29:03 on Wednesday, 23 May 2012

RUN INFORMATION ***************

RUN TITLE : AM Peak 0800-0900 - 2012- Existing plus 900 house development plus school LOCATION : Junction of Long Chaulden with Site Access DATE : 17/05/12 CLIENT : Taylor Wimpey ENUMERATOR : duncan [DUNCAN] JOB NUMBER : ST-2189 STATUS : TIA DESCRIPTION : Year 2012 - Junction of Long Chaulden with Site Access AM 0800-0900 - Existing traffic flows plus 900 house development plus school, with ODTAB table.

MAJOR/MINOR JUNCTION CAPACITY AND DELAY ***************************************

INPUT DATA ------

MAJOR ROAD (ARM C) ------MAJOR ROAD (ARM A) I I I I I I MINOR ROAD (ARM B)

ARM A IS Long Chaulden South ARM B IS Site Access ARM C IS Long Chaulden North

STREAM LABELLING CONVENTION ------STREAM A-B CONTAINS TRAFFIC GOING FROM ARM A TO ARM B STREAM B-AC CONTAINS TRAFFIC GOING FROM ARM B TO ARM A AND TO ARM C ETC.

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GEOMETRIC DATA ------I DATA ITEM I MINOR ROAD B I ------I TOTAL MAJOR ROAD CARRIAGEWAY WIDTH I ( W ) 7.00 M. I I CENTRAL RESERVE WIDTH I (WCR ) 0.00 M. I I I I I MAJOR ROAD RIGHT TURN - WIDTH I (WC-B) 3.00 M. I I - VISIBILITY I (VC-B)120.00 M. I I - BLOCKS TRAFFIC I NO I I I I I MINOR ROAD - VISIBILITY TO LEFT I (VB-C) 90.0 M. I I - VISIBILITY TO RIGHT I (VB-A) 45.0 M. I I - LANE 1 WIDTH I (WB-C) - I I - LANE 2 WIDTH I (WB-A) - I I WIDTH AT 0 M FROM JUNCTION I 10.00 M. I I WIDTH AT 5 M FROM JUNCTION I 4.00 M. I I WIDTH AT 10 M FROM JUNCTION I 3.34 M. I I WIDTH AT 15 M FROM JUNCTION I 3.34 M. I I WIDTH AT 20 M FROM JUNCTION I 3.34 M. I I - LENGTH OF FLARED SECTION I 1 VEHS I ------

.SLOPES AND INTERCEPT ------(NB:Streams may be combined, in which case capacity will be adjusted)

------I Intercept For Slope For Opposing Slope For Opposing I I STREAM B-C STREAM A-C STREAM A-B I ------I 0.00 0.00 0.00 I ------

* Due to the presence of a flare, data is not available

------I Intercept For Slope For Opposing Slope For Opposing Slope For Opposing Slope For OpposingI I STREAM B-A STREAM A-C STREAM A-B STREAM C-A STREAM C-B I ------I 0.00 0.00 0.00 0.00 0.00 I ------

* Due to the presence of a flare, data is not available

------I Intercept For Slope For Opposing Slope For Opposing I I STREAM C-B STREAM A-C STREAM A-B I ------I 699.48 0.26 0.26 I ------(NB These values do not allow for any site specific corrections)

TRAFFIC DEMAND DATA ------I ARM I FLOW SCALE(%) I ------I A I 100 I I B I 100 I I C I 100 I ------

Demand set: AM Flows0800 -0900

TIME PERIOD BEGINS 07.45 AND ENDS 09.15

LENGTH OF TIME PERIOD - 90 MIN. LENGTH OF TIME SEGMENT - 15 MIN.

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DEMAND FLOW PROFILES ARE SYNTHESISED FROM TURNING COUNT DATA

------I I NUMBER OF MINUTES FROM START WHEN I RATE OF FLOW (VEH/MIN) I I ARM I FLOW STARTS I TOP OF PEAK I FLOW STOPS I BEFORE I AT TOP I AFTER I I I TO RISE I IS REACHED I FALLING I PEAK I OF PEAK I PEAK I I I I I I I I I ------I ARM A I 15.00 I 45.00 I 75.00 I 3.81 I 5.72 I 3.81 I I ARM B I 15.00 I 45.00 I 75.00 I 4.56 I 6.84 I 4.56 I I ARM C I 15.00 I 45.00 I 75.00 I 3.91 I 5.87 I 3.91 I ------

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Demand set: AM Flows0800 -0900 ------I I TURNING PROPORTIONS I I I TURNING COUNTS I I I (PERCENTAGE OF H.V.S) I I ------I TIME I FROM/TO I ARM A I ARM B I ARM C I ------I 07.45 - 08.00 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 100.0 I 205.0 I I I I ( 0.0)I ( 0.0)I ( 2.4)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 168.0 I 0.0 I 197.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 231.0 I 82.0 I 0.0 I I I I ( 2.2)I ( 0.0)I ( 0.0)I I I I I I I ------I 08.00 - 08.15 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 08.15 - 08.30 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 08.30 - 08.45 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 08.45 - 09.00 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 09.00 - 09.15 I I I I I I I ARM A I 0.000 I 0.328 I 0.672 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.460 I 0.000 I 0.540 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.738 I 0.262 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I

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I I I I I I ------TURNING PROPORTIONS ARE CALCULATED FROM TURNING COUNT DATA THE PERCENTAGE OF HEAVY VEHICLES VARIES BETWEEN TIME SEGMENTS THE PERCENTAGE OF HEAVY VEHICLES VARIES OVER TURNING MOVEMENTS

QUEUE AND DELAY INFORMATION FOR EACH 15 MIN TIME SEGMENT ------FOR COMBINED DEMAND SETS AND FOR TIME PERIOD 1

------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 07.45-08.00 I I B-C 2.47 10.11 0.244 0.00 0.32 4.6 0.13 I I B-A 2.11 8.77 0.240 0.00 0.31 4.5 0.15 I I C-A 2.90 I I C-B 1.03 10.65 0.097 0.00 0.11 1.5 0.10 I I A-B 1.25 I I A-C 2.57 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 08.00-08.15 I I B-C 2.95 9.95 0.297 0.32 0.42 6.1 0.14 I I B-A 2.52 8.21 0.307 0.31 0.44 6.3 0.18 I I C-A 3.46 I I C-B 1.23 10.47 0.117 0.11 0.13 1.9 0.11 I I A-B 1.50 I I A-C 3.07 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 08.15-08.30 I I B-C 3.62 9.39 0.385 0.42 0.61 8.9 0.17 I I B-A 3.08 7.48 0.412 0.44 0.68 9.8 0.23 I I C-A 4.24 I I C-B 1.50 10.21 0.147 0.13 0.17 2.5 0.11 I I A-B 1.84 I I A-C 3.76 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 08.30-08.45 I I B-C 3.62 9.38 0.385 0.61 0.62 9.3 0.17 I I B-A 3.08 7.47 0.413 0.68 0.69 10.4 0.23 I I C-A 4.24 I I C-B 1.50 10.21 0.147 0.17 0.17 2.6 0.11 I I A-B 1.84 I I A-C 3.76 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 08.45-09.00 I I B-C 2.95 9.93 0.297 0.62 0.43 6.6 0.14 I I B-A 2.52 8.20 0.307 0.69 0.45 7.0 0.18 I I C-A 3.46 I I C-B 1.23 10.47 0.117 0.17 0.13 2.1 0.11 I I A-B 1.50 I I A-C 3.07 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 09.00-09.15 I I B-C 2.47 10.11 0.244 0.43 0.33 5.0 0.13 I I B-A 2.11 8.80 0.240 0.45 0.32 4.9 0.15 I I C-A 2.90 I I C-B 1.03 10.67 0.096 0.13 0.11 1.6 0.10 I I A-B 1.25 I I A-C 2.57 I I I

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QUEUE FOR STREAM B-C ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 08.00 0.3 08.15 0.4 08.30 0.6 * 08.45 0.6 * 09.00 0.4 09.15 0.3

QUEUE FOR STREAM B-A ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 08.00 0.3 08.15 0.4 08.30 0.7 * 08.45 0.7 * 09.00 0.5 09.15 0.3

QUEUE FOR STREAM C-B ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 08.00 0.1 08.15 0.1 08.30 0.2 08.45 0.2 09.00 0.1 09.15 0.1

QUEUEING DELAY INFORMATION OVER WHOLE PERIOD ------I STREAM I TOTAL DEMAND I * QUEUEING * I * INCLUSIVE QUEUEING * I I I I * DELAY * I * DELAY * I I I------I I I (VEH) (VEH/H) I (MIN) (MIN/VEH) I (MIN) (MIN/VEH) I ------I B-C I 271.2 I 180.8 I 40.5 I 0.15 I 40.5 I 0.15 I I B-A I 231.2 I 154.2 I 42.9 I 0.19 I 42.9 I 0.19 I I C-A I 318.0 I 212.0 I I I I I I C-B I 112.9 I 75.2 I 12.3 I 0.11 I 12.3 I 0.11 I I A-B I 137.6 I 91.8 I I I I I I A-C I 282.2 I 188.1 I I I I I ------I ALL I 1353.0 I 902.0 I 95.7 I 0.07 I 95.7 I 0.07 I ------* DELAY IS THAT OCCURRING ONLY WITHIN THE TIME PERIOD * INCLUSIVE DELAY INCLUDES DELAY SUFFERED BY VEHICLES WHICH ARE STILL QUEUEING AFTER THE END OF THE TIME PERIOD * THESE WILL ONLY BE SIGNIFICANTLY DIFFERENT IF THERE IS A LARGE QUEUE REMAINING AT THE END OF THE TIME PERIOD.

*******END OF RUN*******

======end of file ======

Printed at 09:29:31 on 23/05/2012]

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TRL LIMITED

(C) COPYRIGHT 2006

CAPACITIES, QUEUES, AND DELAYS AT 3 OR 4-ARM MAJOR/MINOR PRIORITY JUNCTIONS

PICADY 5.1 ANALYSIS PROGRAM RELEASE 4.0 (SEPT 2008)

ADAPTED FROM PICADY/3 WHICH IS CROWN COPYRIGHT BY PERMISSION OF THE CONTROLLER OF HMSO

------FOR SALES AND DISTRIBUTION INFORMATION, PROGRAM ADVICE AND MAINTENANCE CONTACT: TRL SOFTWARE BUREAU TEL: CROWTHORNE (01344) 770758, FAX: 770356 EMAIL: [email protected] ------

THE USER OF THIS COMPUTER PROGRAM FOR THE SOLUTION OF AN ENGINEERING PROBLEM IS IN NO WAY RELIEVED OF HIS/HER RESPONSIBILITY FOR THE CORRECTNESS OF THE SOLUTION

Run with file:- "Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\PICADY\Junction 1\PM-Peak-2031.vpi" (drive-on-the-left) at 09:30:16 on Wednesday, 23 May 2012

RUN INFORMATION ***************

RUN TITLE : PM Peak 0800-0900 - 2012- Existing plus 900 house development plus school LOCATION : Junction of Long Chaulden with Site Access DATE : 17/05/12 CLIENT : Taylor Wimpey ENUMERATOR : duncan [DUNCAN] JOB NUMBER : ST-2189 STATUS : TIA DESCRIPTION : Year 2031 - Junction of Long Chaulden with Site Access AM 0800-0900 - Existing traffic flows plus 900 house development plus school, with ODTAB table.

MAJOR/MINOR JUNCTION CAPACITY AND DELAY ***************************************

INPUT DATA ------

MAJOR ROAD (ARM C) ------MAJOR ROAD (ARM A) I I I I I I MINOR ROAD (ARM B)

ARM A IS Long Chaulden South ARM B IS Site Access ARM C IS Long Chaulden North

STREAM LABELLING CONVENTION ------STREAM A-B CONTAINS TRAFFIC GOING FROM ARM A TO ARM B STREAM B-AC CONTAINS TRAFFIC GOING FROM ARM B TO ARM A AND TO ARM C ETC.

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GEOMETRIC DATA ------I DATA ITEM I MINOR ROAD B I ------I TOTAL MAJOR ROAD CARRIAGEWAY WIDTH I ( W ) 7.00 M. I I CENTRAL RESERVE WIDTH I (WCR ) 0.00 M. I I I I I MAJOR ROAD RIGHT TURN - WIDTH I (WC-B) 3.00 M. I I - VISIBILITY I (VC-B)120.00 M. I I - BLOCKS TRAFFIC I NO I I I I I MINOR ROAD - VISIBILITY TO LEFT I (VB-C) 90.0 M. I I - VISIBILITY TO RIGHT I (VB-A) 45.0 M. I I - LANE 1 WIDTH I (WB-C) - I I - LANE 2 WIDTH I (WB-A) - I I WIDTH AT 0 M FROM JUNCTION I 10.00 M. I I WIDTH AT 5 M FROM JUNCTION I 4.00 M. I I WIDTH AT 10 M FROM JUNCTION I 3.34 M. I I WIDTH AT 15 M FROM JUNCTION I 3.34 M. I I WIDTH AT 20 M FROM JUNCTION I 3.34 M. I I - LENGTH OF FLARED SECTION I 1 VEHS I ------

.SLOPES AND INTERCEPT ------(NB:Streams may be combined, in which case capacity will be adjusted)

------I Intercept For Slope For Opposing Slope For Opposing I I STREAM B-C STREAM A-C STREAM A-B I ------I 0.00 0.00 0.00 I ------

* Due to the presence of a flare, data is not available

------I Intercept For Slope For Opposing Slope For Opposing Slope For Opposing Slope For OpposingI I STREAM B-A STREAM A-C STREAM A-B STREAM C-A STREAM C-B I ------I 0.00 0.00 0.00 0.00 0.00 I ------

* Due to the presence of a flare, data is not available

------I Intercept For Slope For Opposing Slope For Opposing I I STREAM C-B STREAM A-C STREAM A-B I ------I 699.48 0.26 0.26 I ------(NB These values do not allow for any site specific corrections)

TRAFFIC DEMAND DATA ------I ARM I FLOW SCALE(%) I ------I A I 100 I I B I 100 I I C I 100 I ------

Demand set: AM Flows0800 -0900

TIME PERIOD BEGINS 16.45 AND ENDS 18.15

LENGTH OF TIME PERIOD - 90 MIN. LENGTH OF TIME SEGMENT - 15 MIN.

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DEMAND FLOW PROFILES ARE SYNTHESISED FROM TURNING COUNT DATA

------I I NUMBER OF MINUTES FROM START WHEN I RATE OF FLOW (VEH/MIN) I I ARM I FLOW STARTS I TOP OF PEAK I FLOW STOPS I BEFORE I AT TOP I AFTER I I I TO RISE I IS REACHED I FALLING I PEAK I OF PEAK I PEAK I I I I I I I I I ------I ARM A I 15.00 I 45.00 I 75.00 I 4.34 I 6.51 I 4.34 I I ARM B I 15.00 I 45.00 I 75.00 I 1.95 I 2.93 I 1.95 I I ARM C I 15.00 I 45.00 I 75.00 I 4.72 I 7.09 I 4.72 I ------

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Demand set: AM Flows0800 -0900 ------I I TURNING PROPORTIONS I I I TURNING COUNTS I I I (PERCENTAGE OF H.V.S) I I ------I TIME I FROM/TO I ARM A I ARM B I ARM C I ------I 16.45 - 17.00 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 114.0 I 233.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 72.0 I 0.0 I 84.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 247.0 I 131.0 I 0.0 I I I I ( 1.6)I ( 0.0)I ( 0.0)I I I I I I I ------I 17.00 - 17.15 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 17.15 - 17.30 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 17.30 - 17.45 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 17.45 - 18.00 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I ------I 18.00 - 18.15 I I I I I I I ARM A I 0.000 I 0.329 I 0.671 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM B I 0.462 I 0.000 I 0.538 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I I I I I I I I I ARM C I 0.653 I 0.347 I 0.000 I I I I 0.0 I 0.0 I 0.0 I I I I ( 0.0)I ( 0.0)I ( 0.0)I

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I I I I I I ------TURNING PROPORTIONS ARE CALCULATED FROM TURNING COUNT DATA THE PERCENTAGE OF HEAVY VEHICLES VARIES BETWEEN TIME SEGMENTS THE PERCENTAGE OF HEAVY VEHICLES VARIES OVER TURNING MOVEMENTS

QUEUE AND DELAY INFORMATION FOR EACH 15 MIN TIME SEGMENT ------FOR COMBINED DEMAND SETS AND FOR TIME PERIOD 1

------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 16.45-17.00 I I B-C 1.05 10.54 0.100 0.00 0.11 1.6 0.11 I I B-A 0.90 8.39 0.108 0.00 0.12 1.7 0.13 I I C-A 3.10 I I C-B 1.64 10.53 0.156 0.00 0.18 2.7 0.11 I I A-B 1.43 I I A-C 2.92 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 17.00-17.15 I I B-C 1.26 10.29 0.122 0.11 0.14 2.0 0.11 I I B-A 1.08 7.96 0.135 0.12 0.16 2.3 0.15 I I C-A 3.70 I I C-B 1.96 10.31 0.190 0.18 0.23 3.4 0.12 I I A-B 1.71 I I A-C 3.49 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 17.15-17.30 I I B-C 1.54 9.92 0.155 0.14 0.18 2.7 0.12 I I B-A 1.32 7.36 0.180 0.16 0.22 3.1 0.17 I I C-A 4.53 I I C-B 2.40 10.01 0.240 0.23 0.31 4.6 0.13 I I A-B 2.09 I I A-C 4.28 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 17.30-17.45 I I B-C 1.54 9.92 0.155 0.18 0.18 2.7 0.12 I I B-A 1.32 7.36 0.180 0.22 0.22 3.3 0.17 I I C-A 4.53 I I C-B 2.40 10.01 0.240 0.31 0.31 4.7 0.13 I I A-B 2.09 I I A-C 4.28 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 17.45-18.00 I I B-C 1.26 10.28 0.122 0.18 0.14 2.2 0.11 I I B-A 1.08 7.96 0.136 0.22 0.16 2.4 0.15 I I C-A 3.70 I I C-B 1.96 10.31 0.190 0.31 0.24 3.7 0.12 I I A-B 1.71 I I A-C 3.49 I I I

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------I TIME DEMAND CAPACITY DEMAND/ PEDESTRIAN START END DELAY GEOMETRIC DELAY AVERAGE DELAY I I (VEH/MIN) (VEH/MIN) CAPACITY FLOW QUEUE QUEUE (VEH.MIN/ (VEH.MIN/ PER ARRIVING I I (RFC) (PEDS/MIN) (VEHS) (VEHS) TIME SEGMENT) TIME SEGMENT) VEHICLE (MIN) I I 18.00-18.15 I I B-C 1.05 10.54 0.100 0.14 0.11 1.7 0.11 I I B-A 0.90 8.39 0.108 0.16 0.12 1.9 0.13 I I C-A 3.10 I I C-B 1.64 10.53 0.156 0.24 0.19 2.9 0.11 I I A-B 1.43 I I A-C 2.92 I I I

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QUEUE FOR STREAM B-C ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 17.00 0.1 17.15 0.1 17.30 0.2 17.45 0.2 18.00 0.1 18.15 0.1

QUEUE FOR STREAM B-A ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 17.00 0.1 17.15 0.2 17.30 0.2 17.45 0.2 18.00 0.2 18.15 0.1

QUEUE FOR STREAM C-B ------TIME NO. OF SEGMENT VEHICLES ENDING IN QUEUE 17.00 0.2 17.15 0.2 17.30 0.3 17.45 0.3 18.00 0.2 18.15 0.2

QUEUEING DELAY INFORMATION OVER WHOLE PERIOD ------I STREAM I TOTAL DEMAND I * QUEUEING * I * INCLUSIVE QUEUEING * I I I I * DELAY * I * DELAY * I I I------I I I (VEH) (VEH/H) I (MIN) (MIN/VEH) I (MIN) (MIN/VEH) I ------I B-C I 115.6 I 77.1 I 12.9 I 0.11 I 12.9 I 0.11 I I B-A I 99.1 I 66.1 I 14.7 I 0.15 I 14.7 I 0.15 I I C-A I 340.0 I 226.7 I I I I I I C-B I 180.3 I 120.2 I 21.9 I 0.12 I 21.9 I 0.12 I I A-B I 156.9 I 104.6 I I I I I I A-C I 320.7 I 213.8 I I I I I ------I ALL I 1212.6 I 808.4 I 49.5 I 0.04 I 49.5 I 0.04 I ------* DELAY IS THAT OCCURRING ONLY WITHIN THE TIME PERIOD * INCLUSIVE DELAY INCLUDES DELAY SUFFERED BY VEHICLES WHICH ARE STILL QUEUEING AFTER THE END OF THE TIME PERIOD * THESE WILL ONLY BE SIGNIFICANTLY DIFFERENT IF THERE IS A LARGE QUEUE REMAINING AT THE END OF THE TIME PERIOD.

*******END OF RUN*******

======end of file ======

Printed at 09:30:29 on 23/05/2012] APPENDIX M

Page 1 of 8

ARCADY 7 Version: 7.0.0.99 [10 July 2009] © Copyright Transport Research Laboratory 2009 For sales and distribution information, program advice and maintenance, contact TRL: Tel: +44 (0)1344 770758 E-mail: [email protected] Web: www.trlsoftware.co.uk The users of this computer program for the solution of an engineering problem are in no way relieved of their responsibility for the correctness of the solution

File: Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\ARCADY\Junction 2\Junction 2-2031-AM+Growth+Dev..arc7 Report generation date: 10/05/2012 12:06:50

File summary File Description Title Boxted Road/The Avenue Roundabout Location Hemel Hempstead Site Number ST-2189 Date 10/05/2012 Status (new file) Client Taylor Wiompey Strategic Land Jobnumber ST-2189 Enumerator STOMORLTD\duncan Description AM Peak Hour 2031 +Growth+Development Results Upto Date True

Analysis Options RFC Threshold Vehicle Length (m) Do Queue Variations 0.85 5.75

Sorting and Display Show Arm Names Arm Grouping Sorting Direction Sorting Type Data Matrix Style Time Style Yes Order Ascending Numerical By Destination Absolute Time

Units

Distance Units Speed Units Traffic Units Input Traffic Units Results Flow Units Average Delay Units Total Delay Units Rate Of Delay Units m kph Veh Veh perHour min -Min perMin

A2 - (Default Analysis Set) - D1 - Existing 2012, AM 0800 - 0900

Data Errors and Warnings No errors or warnings

Analysis Set Details Include In Use Specific Demand Network Flow Network Capacity Reason For Name Description Locked Report Demand Set Set Scaling Factor (%) Scaling Factor (%) Scaling Factors (Default Yes (D1) 100.000 100.000 Analysis Set)

Demand Set Details

Time Start Finish Traffic Scenario Run Use Time Time Name Period Description Locked Relationship Time Time Profile Name Automatically Relationship Period Segment Name (HH:mm) (HH:mm) Length Length Type

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(min) (min) Existing 2012, AM Existing Peak Hour ONE AM 0800 - Yes 07:45 09:15 90 15 2012 Flows HOUR 0800 - 0900 0900 Roundabout Network

Roundabout Type(s) ID Name Arm Order Roundabout Type Grade Separated Large Roundabout Do Geometric Delay 1 Boxted Road/The AvenueRoundabout 1,2,3,4 Standard

Roundabout Network Options Driving Side Lighting Road Surface In London Left Normal/unknown ((Mini-roundabouts only)) Arms

Arms ID Name Description 1 Boxted Road North Single Carriageway 2 Warmark Road Single Carriageway 3 Boxted Road South Single Carriageway 4 The Avenue Single Carriageway

Capacity Options

Arm Minimum Capacity (PCU/hr) Maximum Capacity (PCU/hr) Assume Flat Start Profile Initial Queue (PCU) Boxted Road North 0.00 99999.00 0.00 Warmark Road 0.00 99999.00 0.00 Boxted Road South 0.00 99999.00 0.00 The Avenue 0.00 99999.00 0.00

Standard Geometry

V - Approach road E - Entry l' - Effective flare R - Entry D - Inscribed circle PHI - Conflict Exit Arm half-width (m) width (m) length (m) radius (m) diameter (m) (entry) angle (deg) Only Boxted Road North 3.40 5.00 6.00 10.00 24.00 31.00 Warmark Road 2.50 3.80 3.50 13.50 24.50 27.50 Boxted Road South 3.50 4.50 9.00 20.00 24.00 19.00 The Avenue 3.45 5.10 12.00 29.00 24.50 17.00

Pedestrian Crossings

Arm Crossing Type Boxted Road North None Warmark Road None Boxted Road South None The Avenue None

Arm Slope/ Intercept and Capacity

Slope and Intercept used in model

Arm Enter Directly Slope Intercept (PCU/hr) Final Slope Final Intercept (PCU/hr) Boxted Road North ((calculated)) ((calculated)) 0.548 1224.132 Warmark Road ((calculated)) ((calculated)) 0.498 923.541 Boxted Road South ((calculated)) ((calculated)) 0.599 1333.036 The Avenue ((calculated)) ((calculated)) 0.635 1476.488 The slope and intercept shown above include any corrections and adjustments.

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Traffic Flows

Demand Set Data Options Vehicle Vehicle Vehicle PCU Estimate Turning Turning Turning Default Mix Mix Mix Default Vehicle Mix Factor from Proportions Proportions Proportions Vehicle Varies Varies Varies Turning Source for a HV entry/exit Vary Over Vary Over Vary Over Mix Over Over Over Proportions (PCU) counts Time Turn Entry Time Turn Entry HV Yes Yes Yes 2.00 Yes Yes Percentages Entry Flows

General Flows Data

Arm Profile Type Use Turning Counts Average Demand Flow (Veh/hr) Flow Scaling Factor (%) PHF Boxted Road North ONE HOUR Yes 470.00 100.000 N/A Warmark Road ONE HOUR Yes 18.00 100.000 N/A Boxted Road South ONE HOUR Yes 462.00 100.000 N/A The Avenue ONE HOUR Yes 359.00 100.000 N/A Direct/Resultant Flows

Direct Flows Data Direct Demand Direct Demand DirectDemandEntryFlowInPCU Direct Demand Exit Time Segment Arm Pedestrian Flow Entry Flow (Veh/hr) (PCU/hr) Flow (Veh/hr) (Ped/hr) 07:45-08:00 Boxted Road North 353.84 359.14 N/A N/A 07:45-08:00 Warmark Road 13.55 13.55 N/A N/A 07:45-08:00 Boxted Road South 347.82 359.11 N/A N/A 07:45-08:00 The Avenue 270.27 271.03 N/A N/A 08:00-08:15 Boxted Road North 422.52 448.41 N/A N/A 08:00-08:15 Warmark Road 16.18 18.05 N/A N/A 08:00-08:15 Boxted Road South 415.33 479.59 N/A N/A 08:00-08:15 The Avenue 322.73 351.40 N/A N/A 08:15-08:30 Boxted Road North 517.48 549.19 N/A N/A 08:15-08:30 Warmark Road 19.82 22.11 N/A N/A 08:15-08:30 Boxted Road South 508.67 587.38 N/A N/A 08:15-08:30 The Avenue 395.27 430.37 N/A N/A 08:30-08:45 Boxted Road North 517.48 549.19 N/A N/A 08:30-08:45 Warmark Road 19.82 22.11 N/A N/A 08:30-08:45 Boxted Road South 508.67 587.38 N/A N/A 08:30-08:45 The Avenue 395.27 430.37 N/A N/A 08:45-09:00 Boxted Road North 422.52 444.05 N/A N/A 08:45-09:00 Warmark Road 16.18 16.99 N/A N/A 08:45-09:00 Boxted Road South 415.33 435.92 N/A N/A 08:45-09:00 The Avenue 322.73 338.87 N/A N/A 09:00-09:15 Boxted Road North 353.84 371.87 N/A N/A 09:00-09:15 Warmark Road 13.55 14.23 N/A N/A 09:00-09:15 Boxted Road South 347.82 365.06 N/A N/A 09:00-09:15 The Avenue 270.27 283.79 N/A N/A Turning Proportions

Turning Counts or Proportions (Veh/hr) - Roundabout 1 (for whole period) To 1 2 3 4 1 1.00 1.00 443.00 25.00

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2 8.00 0.00 9.00 1.00 From 3 377.00 4.00 4.00 77.00 4 72.00 0.00 287.00 0.00

Turning Proportions (Veh) - Roundabout 1 (for whole period) To 1 2 3 4 1 0.00 0.00 0.94 0.05 From 2 0.44 0.00 0.50 0.06 3 0.82 0.01 0.01 0.17 4 0.20 0.00 0.80 0.00 Vehicle Mix

Average PCU Per Vehicle - Roundabout 1 - (07:45-08:00)

To 1 2 3 4 1 1.00 1.00 1.02 1.00 From 2 1.00 1.00 1.00 1.00 3 1.04 1.00 1.00 1.00 4 1.01 1.00 1.00 1.00

Heavy Vehicle Percentages - Roundabout 1 - (07:45-08:00)

To 1 2 3 4 1 0.00 0.00 1.59 0.00 From 2 0.00 0.00 0.00 0.00 3 3.98 0.00 0.00 0.00 4 1.40 0.00 0.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:00-08:15)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:00-08:15)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:15-08:30)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:15-08:30)

To 1 2 3 4 1 0.00 0.00 6.25 4.45

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2 8.85 0.00 15.00 2.50 From 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:30-08:45) To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:30-08:45) To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (08:45-09:00) To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (08:45-09:00) To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (09:00-09:15) To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (09:00-09:15)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00 Results

Results Summary

Total Average Max Max Total Total Rate Of Inclusive Inclusive Max Max Queueing Queueing Intercept Arm Delay Queue Demand Arrivals Queueing Queueing Queueing Slope RFC LOS Delay Delay (PCU/hr) (min) (Veh) (Veh/hr) (Veh) Delay Total Average (Veh-min) (min) (Veh- Delay Delay

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min/min) (Veh-min) (min) Boxted Road North 0.53 0.13 1.14 A 431.19 646.79 69.64 0.11 0.77 69.64 0.11 0.548 1224.132 Warmark Road 0.05 0.15 0.05 A 16.49 24.74 3.07 0.12 0.03 3.07 0.12 0.498 923.541 Boxted Road South 0.45 0.10 0.84 A 422.86 634.30 51.47 0.08 0.57 51.47 0.08 0.599 1333.036 The Avenue 0.37 0.09 0.60 A 329.16 493.74 37.41 0.08 0.42 37.41 0.08 0.635 1476.488

Main Results

Main results: (07:45-08:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 353.84 88.46 351.92 343.33 221.21 0.00 1086.59 868.10 0.326 0.00 0.48 Warmark Road 13.55 3.39 13.47 3.75 569.39 0.00 637.55 179.74 0.021 0.00 0.02 Boxted Road South 347.82 86.95 346.33 556.66 26.20 0.00 1275.90 1211.12 0.273 0.00 0.37 The Avenue 270.27 67.57 269.21 77.19 295.34 0.00 1278.21 756.57 0.211 0.00 0.27

Main results: (08:00-08:15) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 422.60 105.65 421.56 410.94 264.75 0.00 1004.73 825.94 0.421 0.46 0.72 Warmark Road 16.19 4.05 16.13 4.49 681.82 0.00 501.88 158.92 0.032 0.02 0.03 Boxted Road South 415.47 103.87 414.52 666.57 31.39 0.00 1137.67 1085.54 0.365 0.33 0.57 The Avenue 322.81 80.70 322.19 92.41 353.50 0.00 1120.26 705.51 0.288 0.25 0.40

Main results: (08:15-08:30) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 517.48 129.37 515.87 503.32 324.21 0.00 971.05 825.78 0.533 0.72 1.12 Warmark Road 19.82 4.95 19.76 5.49 834.58 0.00 428.48 158.84 0.046 0.03 0.05 Boxted Road South 508.67 127.17 507.73 815.92 38.42 0.00 1133.43 1085.16 0.449 0.57 0.81 The Avenue 395.27 98.82 394.54 113.16 432.99 0.00 1066.83 705.34 0.371 0.40 0.58

Main results: (08:30-08:45)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 517.48 129.37 517.44 504.25 324.79 0.00 970.72 825.78 0.533 1.12 1.13 Warmark Road 19.82 4.95 19.82 5.50 836.73 0.00 427.46 158.84 0.046 0.05 0.05 Boxted Road South 508.67 127.17 508.65 818.01 38.53 0.00 1133.37 1085.16 0.449 0.81 0.81 The Avenue 395.27 98.82 395.25 113.40 433.79 0.00 1066.30 705.34 0.371 0.58 0.59

Main results: (08:45-09:00) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 422.48 105.62 424.18 412.92 265.88 0.00 1019.12 835.46 0.415 1.14 0.72 Warmark Road 16.17 4.04 16.25 4.51 685.55 0.00 538.01 170.48 0.030 0.05 0.03 Boxted Road South 414.98 103.74 416.53 670.21 31.59 0.00 1250.12 1190.32 0.332 0.89 0.50 The Avenue 322.64 80.66 323.56 92.89 355.24 0.00 1180.23 726.63 0.273 0.61 0.38

Main results: (09:00-09:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 353.84 88.46 354.63 345.27 222.39 0.00 1043.07 835.55 0.339 0.72 0.52 Warmark Road 13.55 3.39 13.58 3.77 573.26 0.00 594.36 170.61 0.023 0.03 0.02 Boxted Road South 347.82 86.95 348.28 560.43 26.41 0.00 1254.28 1191.33 0.277 0.50 0.39 The Avenue 270.27 67.57 270.64 77.66 297.02 0.00 1217.68 726.83 0.222 0.38 0.29

Queueing Delay Results

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Queueing Delay results: (07:45-08:00) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 6.97 0.46 0.081 A A Warmark Road 0.32 0.02 0.096 A A Boxted Road South 5.45 0.36 0.064 A A The Avenue 3.92 0.26 0.059 A A

Queueing Delay results: (08:00-08:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 10.44 0.70 0.103 A A Warmark Road 0.48 0.03 0.124 A A Boxted Road South 8.34 0.56 0.083 A A The Avenue 5.90 0.39 0.075 A A

Queueing Delay results: (08:15-08:30) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 16.15 1.08 0.131 A A Warmark Road 0.70 0.05 0.147 A A Boxted Road South 11.75 0.78 0.096 A A The Avenue 8.53 0.57 0.089 A A

Queueing Delay results: (08:30-08:45)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 16.90 1.13 0.132 A A Warmark Road 0.72 0.05 0.147 A A Boxted Road South 12.12 0.81 0.096 A A The Avenue 8.78 0.59 0.089 A A

Queueing Delay results: (08:45-09:00) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 11.10 0.74 0.101 A A Warmark Road 0.48 0.03 0.115 A A Boxted Road South 7.70 0.51 0.072 A A The Avenue 5.81 0.39 0.070 A A

Queueing Delay results: (09:00-09:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 7.96 0.53 0.087 A A Warmark Road 0.36 0.02 0.103 A A Boxted Road South 5.89 0.39 0.066 A A The Avenue 4.37 0.29 0.063 A A Overview: Standard Roundabout Geometry

Standard Geometry

V - Approach D - Inscribed PHI - Conflict Final E - Entry l' - Effective R - Entry Exit Final Arm road half-width circle diameter (entry) angle Intercept width (m) flare length (m) radius (m) Only Slope (m) (m) (deg) (PCU/hr) Boxted 3.40 5.00 6.00 10.00 24.00 31.00 0.548 1224.132 Road North Warmark 2.50 3.80 3.50 13.50 24.50 27.50 0.498 923.541 Road Boxted 3.50 4.50 9.00 20.00 24.00 19.00 0.599 1333.036 Road South The Avenue 3.45 5.10 12.00 29.00 24.50 17.00 0.635 1476.488

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Overview: Time Segment Results

Time Segment Results Pedestrian Start End Queueing Geometric Average Delay Demand Capacity Time Segment Arm RFC Demand Queue Queue Total Delay Total Delay Per Arriving (Veh/hr) (Veh/hr) (Ped/hr) (Veh) (Veh) (Veh-min) (Veh-min) Vehicle (min) Boxted 07:45-08:00 Road 353.84 1086.59 0.326 0.00 0.00 0.48 6.97 (16.22) 0.081 North Warmark 07:45-08:00 13.55 637.55 0.021 0.00 0.00 0.02 0.32 (22.65) 0.096 Road Boxted 07:45-08:00 Road 347.82 1275.90 0.273 0.00 0.00 0.37 5.45 (18.25) 0.064 South The 07:45-08:00 270.27 1278.21 0.211 0.00 0.00 0.27 3.92 (16.55) 0.059 Avenue Boxted 08:00-08:15 Road 422.60 1004.73 0.421 0.00 0.46 0.72 10.44 (15.51) 0.103 North Warmark 08:00-08:15 16.19 501.88 0.032 0.00 0.02 0.03 0.48 (20.31) 0.124 Road Boxted 08:00-08:15 Road 415.47 1137.67 0.365 0.00 0.33 0.57 8.34 (16.32) 0.083 South The 08:00-08:15 322.81 1120.26 0.288 0.00 0.25 0.40 5.90 (15.25) 0.075 Avenue Boxted 08:15-08:30 Road 517.48 971.05 0.533 0.00 0.72 1.12 16.15 (15.51) 0.131 North Warmark 08:15-08:30 19.82 428.48 0.046 0.00 0.03 0.05 0.70 (20.30) 0.147 Road Boxted 08:15-08:30 Road 508.67 1133.43 0.449 0.00 0.57 0.81 11.75 (16.32) 0.096 South The 08:15-08:30 395.27 1066.83 0.371 0.00 0.40 0.58 8.53 (15.24) 0.089 Avenue Boxted 08:30-08:45 Road 517.48 970.72 0.533 0.00 1.12 1.13 16.90 (15.51) 0.132 North Warmark 08:30-08:45 19.82 427.46 0.046 0.00 0.05 0.05 0.72 (20.30) 0.147 Road Boxted 08:30-08:45 Road 508.67 1133.37 0.449 0.00 0.81 0.81 12.12 (16.32) 0.096 South The 08:30-08:45 395.27 1066.30 0.371 0.00 0.58 0.59 8.78 (15.24) 0.089 Avenue Boxted 08:45-09:00 Road 422.48 1019.12 0.415 0.00 1.14 0.72 11.10 (15.66) 0.101 North Warmark 08:45-09:00 16.17 538.01 0.030 0.00 0.05 0.03 0.48 (21.56) 0.115 Road Boxted 08:45-09:00 Road 414.98 1250.12 0.332 0.00 0.89 0.50 7.70 (17.94) 0.072 South The 08:45-09:00 322.64 1180.23 0.273 0.00 0.61 0.38 5.81 (15.80) 0.070 Avenue Boxted 09:00-09:15 Road 353.84 1043.07 0.339 0.00 0.72 0.52 7.96 (15.66) 0.087 North Warmark 09:00-09:15 13.55 594.36 0.023 0.00 0.03 0.02 0.36 (21.58) 0.103 Road Boxted 09:00-09:15 Road 347.82 1254.28 0.277 0.00 0.50 0.39 5.89 (17.95) 0.066 South The 09:00-09:15 270.27 1217.68 0.222 0.00 0.38 0.29 4.37 (15.81) 0.063 Avenue

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ARCADY 7 Version: 7.0.0.99 [10 July 2009] © Copyright Transport Research Laboratory 2009 For sales and distribution information, program advice and maintenance, contact TRL: Tel: +44 (0)1344 770758 E-mail: [email protected] Web: www.trlsoftware.co.uk The users of this computer program for the solution of an engineering problem are in no way relieved of their responsibility for the correctness of the solution

File: Z:\Stomor Ltd\2100 Projects\2189-Hemel Hempstead- Land at Fields End\ARCADY\Junction 2\Junction 2-2031-PM Growth+Dev..arc7 Report generation date: 10/05/2012 12:20:57

File summary File Description Title Boxted Road/The Avenue Roundabout Location Hemel Hempstead Site Number ST-2189 Date 10/05/2012 Status (new file) Client Taylor Wiompey Strategic Land Jobnumber ST-2189 Enumerator STOMORLTD\duncan Description PM Peak Hour 2031 Growth+Development Results Upto Date True

Analysis Options RFC Threshold Vehicle Length (m) Do Queue Variations 0.85 5.75

Sorting and Display Show Arm Names Arm Grouping Sorting Direction Sorting Type Data Matrix Style Time Style Yes Order Ascending Numerical By Destination Absolute Time

Units

Distance Units Speed Units Traffic Units Input Traffic Units Results Flow Units Average Delay Units Total Delay Units Rate Of Delay Units m kph Veh Veh perHour min -Min perMin

A2 - (Default Analysis Set) - D1 - Existing 2012, PM 1700 - 1800

Data Errors and Warnings No errors or warnings

Analysis Set Details Include In Use Specific Demand Network Flow Network Capacity Reason For Name Description Locked Report Demand Set Set Scaling Factor (%) Scaling Factor (%) Scaling Factors (Default Yes (D1) 100.000 100.000 Analysis Set)

Demand Set Details

Time Start Finish Traffic Scenario Run Use Time Time Name Period Description Locked Relationship Time Time Profile Name Automatically Relationship Period Segment Name (HH:mm) (HH:mm) Length Length Type

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(min) (min) Existing 2012, PM Existing Peak Hour ONE PM 1700 - Yes 16:45 18:15 90 15 2012 Flows HOUR 1700 - 1800 1800 Roundabout Network

Roundabout Type(s) ID Name Arm Order Roundabout Type Grade Separated Large Roundabout Do Geometric Delay 1 Boxted Road/The AvenueRoundabout 1,2,3,4 Standard

Roundabout Network Options Driving Side Lighting Road Surface In London Left Normal/unknown ((Mini-roundabouts only)) Arms

Arms ID Name Description 1 Boxted Road North Single Carriageway 2 Warmark Road Single Carriageway 3 Boxted Road South Single Carriageway 4 The Avenue Single Carriageway

Capacity Options

Arm Minimum Capacity (PCU/hr) Maximum Capacity (PCU/hr) Assume Flat Start Profile Initial Queue (PCU) Boxted Road North 0.00 99999.00 0.00 Warmark Road 0.00 99999.00 0.00 Boxted Road South 0.00 99999.00 0.00 The Avenue 0.00 99999.00 0.00

Standard Geometry

V - Approach road E - Entry l' - Effective flare R - Entry D - Inscribed circle PHI - Conflict Exit Arm half-width (m) width (m) length (m) radius (m) diameter (m) (entry) angle (deg) Only Boxted Road North 3.40 5.00 6.00 10.00 24.00 31.00 Warmark Road 2.50 3.80 3.50 13.50 24.50 27.50 Boxted Road South 3.50 4.50 9.00 20.00 24.00 19.00 The Avenue 3.45 5.10 12.00 29.00 24.50 17.00

Pedestrian Crossings

Arm Crossing Type Boxted Road North None Warmark Road None Boxted Road South None The Avenue None

Arm Slope/ Intercept and Capacity

Slope and Intercept used in model

Arm Enter Directly Slope Intercept (PCU/hr) Final Slope Final Intercept (PCU/hr) Boxted Road North ((calculated)) ((calculated)) 0.548 1224.132 Warmark Road ((calculated)) ((calculated)) 0.498 923.541 Boxted Road South ((calculated)) ((calculated)) 0.599 1333.036 The Avenue ((calculated)) ((calculated)) 0.635 1476.488 The slope and intercept shown above include any corrections and adjustments.

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Traffic Flows

Demand Set Data Options Vehicle Vehicle Vehicle PCU Estimate Turning Turning Turning Default Mix Mix Mix Default Vehicle Mix Factor from Proportions Proportions Proportions Vehicle Varies Varies Varies Turning Source for a HV entry/exit Vary Over Vary Over Vary Over Mix Over Over Over Proportions (PCU) counts Time Turn Entry Time Turn Entry HV Yes Yes Yes 2.00 Yes Yes Percentages Entry Flows

General Flows Data

Arm Profile Type Use Turning Counts Average Demand Flow (Veh/hr) Flow Scaling Factor (%) PHF Boxted Road North ONE HOUR Yes 456.00 100.000 N/A Warmark Road ONE HOUR Yes 8.00 100.000 N/A Boxted Road South ONE HOUR Yes 636.00 100.000 N/A The Avenue ONE HOUR Yes 124.00 100.000 N/A Direct/Resultant Flows

Direct Flows Data Direct Demand Direct Demand DirectDemandEntryFlowInPCU Direct Demand Exit Time Segment Arm Pedestrian Flow Entry Flow (Veh/hr) (PCU/hr) Flow (Veh/hr) (Ped/hr) 16:45-17:00 Boxted Road North 343.30 347.06 N/A N/A 16:45-17:00 Warmark Road 6.02 6.02 N/A N/A 16:45-17:00 Boxted Road South 478.81 485.52 N/A N/A 16:45-17:00 The Avenue 93.35 94.87 N/A N/A 17:00-17:15 Boxted Road North 409.93 434.71 N/A N/A 17:00-17:15 Warmark Road 7.19 8.16 N/A N/A 17:00-17:15 Boxted Road South 571.75 665.48 N/A N/A 17:00-17:15 The Avenue 111.47 121.40 N/A N/A 17:15-17:30 Boxted Road North 502.07 532.41 N/A N/A 17:15-17:30 Warmark Road 8.81 9.99 N/A N/A 17:15-17:30 Boxted Road South 700.25 815.04 N/A N/A 17:15-17:30 The Avenue 136.53 148.68 N/A N/A 17:30-17:45 Boxted Road North 502.07 532.41 N/A N/A 17:30-17:45 Warmark Road 8.81 9.99 N/A N/A 17:30-17:45 Boxted Road South 700.25 815.04 N/A N/A 17:30-17:45 The Avenue 136.53 148.68 N/A N/A 17:45-18:00 Boxted Road North 409.93 431.69 N/A N/A 17:45-18:00 Warmark Road 7.19 7.55 N/A N/A 17:45-18:00 Boxted Road South 571.75 600.29 N/A N/A 17:45-18:00 The Avenue 111.47 117.05 N/A N/A 18:00-18:15 Boxted Road North 343.30 361.52 N/A N/A 18:00-18:15 Warmark Road 6.02 6.32 N/A N/A 18:00-18:15 Boxted Road South 478.81 502.72 N/A N/A 18:00-18:15 The Avenue 93.35 98.02 N/A N/A Turning Proportions

Turning Counts or Proportions (Veh/hr) - Roundabout 1 (for whole period) To 1 2 3 4 1 2.00 3.00 416.00 35.00

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2 2.00 0.00 6.00 0.00 From 3 417.00 3.00 1.00 215.00 4 23.00 0.00 101.00 0.00

Turning Proportions (Veh) - Roundabout 1 (for whole period) To 1 2 3 4 1 0.00 0.01 0.91 0.08 From 2 0.25 0.00 0.75 0.00 3 0.66 0.00 0.00 0.34 4 0.19 0.00 0.81 0.00 Vehicle Mix

Average PCU Per Vehicle - Roundabout 1 - (16:45-17:00)

To 1 2 3 4 1 1.00 1.00 1.01 1.00 From 2 1.00 1.00 1.00 1.00 3 1.02 1.00 1.00 1.00 4 1.00 1.00 1.02 1.00

Heavy Vehicle Percentages - Roundabout 1 - (16:45-17:00)

To 1 2 3 4 1 0.00 0.00 1.20 0.00 From 2 0.00 0.00 0.00 0.00 3 1.90 0.00 0.00 0.46 4 0.00 0.00 2.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:00-17:15)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:00-17:15)

To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:15-17:30)

To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:15-17:30)

To 1 2 3 4 1 0.00 0.00 6.25 4.45

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2 8.85 0.00 15.00 2.50 From 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:30-17:45) To 1 2 3 4 1 1.00 1.00 1.06 1.04 From 2 1.09 1.00 1.15 1.03 3 1.15 1.00 1.00 1.19 4 1.08 1.00 1.09 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:30-17:45) To 1 2 3 4 1 0.00 0.00 6.25 4.45 From 2 8.85 0.00 15.00 2.50 3 15.00 0.00 0.00 19.40 4 7.69 0.00 9.18 0.00

Average PCU Per Vehicle - Roundabout 1 - (17:45-18:00) To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (17:45-18:00) To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00

Average PCU Per Vehicle - Roundabout 1 - (18:00-18:15) To 1 2 3 4 1 1.00 1.55 1.05 1.05 From 2 1.05 1.00 1.05 1.05 3 1.05 1.05 1.00 1.05 4 1.05 1.05 1.05 1.00

Heavy Vehicle Percentages - Roundabout 1 - (18:00-18:15)

To 1 2 3 4 1 0.00 55.00 5.00 5.00 From 2 5.00 0.00 5.00 5.00 3 5.00 5.00 0.00 5.00 4 5.00 5.00 5.00 0.00 Results

Results Summary

Total Average Max Max Total Total Rate Of Inclusive Inclusive Max Max Queueing Queueing Intercept Arm Delay Queue Demand Arrivals Queueing Queueing Queueing Slope RFC LOS Delay Delay (PCU/hr) (min) (Veh) (Veh/hr) (Veh) Delay Total Average (Veh-min) (min) (Veh- Delay Delay

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min/min) (Veh-min) (min) Boxted Road North 0.46 0.10 0.86 A 418.34 627.51 55.63 0.09 0.62 55.63 0.09 0.548 1224.132 Warmark Road 0.02 0.12 0.02 A 7.32 10.99 1.13 0.10 0.01 1.13 0.10 0.498 923.541 Boxted Road South 0.62 0.14 1.71 A 581.66 872.49 94.46 0.11 1.05 94.46 0.11 0.599 1333.036 The Avenue 0.13 0.07 0.15 A 113.71 170.57 10.23 0.06 0.11 10.23 0.06 0.635 1476.488

Main Results

Main results: (16:45-17:00)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 343.30 85.82 341.64 332.67 78.77 0.00 1167.34 801.77 0.294 0.00 0.41 Warmark Road 6.02 1.51 5.99 4.50 415.92 0.00 713.94 150.22 0.008 0.00 0.01 Boxted Road South 478.82 119.70 476.49 392.70 29.22 0.00 1297.36 1254.02 0.369 0.00 0.58 The Avenue 93.35 23.34 93.03 187.30 318.41 0.00 1250.16 898.72 0.075 0.00 0.08

Main results: (17:00-17:15) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 410.01 102.50 409.24 397.95 94.28 0.00 1101.55 761.10 0.372 0.39 0.59 Warmark Road 7.20 1.80 7.18 5.38 498.13 0.00 581.30 130.71 0.012 0.01 0.01 Boxted Road South 572.01 143.00 569.97 470.31 35.00 0.00 1127.00 1094.39 0.508 0.51 1.02 The Avenue 111.49 27.87 111.35 224.09 380.88 0.00 1101.20 848.29 0.101 0.08 0.11

Main results: (17:15-17:30) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 502.07 125.52 501.04 487.23 115.47 0.00 1089.42 760.96 0.461 0.59 0.84 Warmark Road 8.81 2.20 8.79 6.59 609.92 0.00 528.69 130.65 0.017 0.01 0.02 Boxted Road South 700.25 175.06 697.83 575.86 42.85 0.00 1122.26 1093.89 0.624 1.02 1.62 The Avenue 136.53 34.13 136.38 274.36 466.32 0.00 1043.72 848.14 0.131 0.11 0.15

Main results: (17:30-17:45)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 502.07 125.52 502.05 488.80 115.61 0.00 1089.34 760.96 0.461 0.84 0.85 Warmark Road 8.81 2.20 8.81 6.61 611.04 0.00 528.16 130.65 0.017 0.02 0.02 Boxted Road South 700.25 175.06 700.17 576.91 42.94 0.00 1122.21 1093.89 0.624 1.62 1.64 The Avenue 136.53 34.13 136.52 275.23 467.88 0.00 1042.68 848.14 0.131 0.15 0.15

Main results: (17:45-18:00) Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 409.91 102.48 410.97 401.21 94.55 0.00 1110.72 769.96 0.369 0.86 0.59 Warmark Road 7.19 1.80 7.21 5.42 500.11 0.00 630.20 144.34 0.011 0.02 0.01 Boxted Road South 570.97 142.74 574.82 472.18 35.15 0.00 1246.96 1209.06 0.458 1.81 0.85 The Avenue 111.45 27.86 111.65 225.85 384.11 0.00 1161.81 872.16 0.096 0.16 0.11

Main results: (18:00-18:15)

Entry Exit Circulating Pedestrian Saturation Start End Demand Arrivals Capacity Arm Flow Flow Flow Demand Capacity RFC Queue Queue (Veh/hr) (Veh) (Veh/hr) (Veh/hr) (Veh/hr) (Veh/hr) (Ped/hr) (Veh/hr) (Veh) (Veh) Boxted Road North 343.30 85.83 343.88 334.89 79.13 0.00 1119.22 770.01 0.307 0.59 0.45 Warmark Road 6.02 1.51 6.03 4.53 418.48 0.00 671.36 144.46 0.009 0.01 0.01 Boxted Road South 478.81 119.70 479.74 395.10 29.41 0.00 1252.08 1210.71 0.382 0.85 0.62 The Avenue 93.35 23.34 93.44 188.57 320.58 0.00 1202.67 872.34 0.078 0.11 0.08

Queueing Delay Results

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Queueing Delay results: (16:45-17:00) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 6.04 0.40 0.073 A A Warmark Road 0.12 0.01 0.085 A A Boxted Road South 8.46 0.56 0.073 A A The Avenue 1.19 0.08 0.052 A A

Queueing Delay results: (17:00-17:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 8.60 0.57 0.087 A A Warmark Road 0.18 0.01 0.105 A A Boxted Road South 14.66 0.98 0.107 A A The Avenue 1.66 0.11 0.061 A A

Queueing Delay results: (17:15-17:30) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 12.30 0.82 0.102 A A Warmark Road 0.25 0.02 0.115 A A Boxted Road South 23.16 1.54 0.141 A A The Avenue 2.21 0.15 0.066 A A

Queueing Delay results: (17:30-17:45)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 12.71 0.85 0.102 A A Warmark Road 0.25 0.02 0.116 A A Boxted Road South 24.48 1.63 0.142 A A The Avenue 2.25 0.15 0.066 A A

Queueing Delay results: (17:45-18:00) Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 9.08 0.61 0.086 A A Warmark Road 0.18 0.01 0.096 A A Boxted Road South 13.29 0.89 0.090 A A The Avenue 1.62 0.11 0.057 A A

Queueing Delay results: (18:00-18:15)

Queueing Total Queueing Rate Of Delay Average Delay Per Unsignalised Level Of Signalised Level Of Arm Delay (Veh-min) (Veh-min/min) Arriving Vehicle (min) Service Service Boxted Road North 6.82 0.45 0.077 A A Warmark Road 0.14 0.01 0.090 A A Boxted Road South 9.58 0.64 0.078 A A The Avenue 1.28 0.09 0.054 A A Overview: Standard Roundabout Geometry

Standard Geometry

V - Approach D - Inscribed PHI - Conflict Final E - Entry l' - Effective R - Entry Exit Final Arm road half-width circle diameter (entry) angle Intercept width (m) flare length (m) radius (m) Only Slope (m) (m) (deg) (PCU/hr) Boxted 3.40 5.00 6.00 10.00 24.00 31.00 0.548 1224.132 Road North Warmark 2.50 3.80 3.50 13.50 24.50 27.50 0.498 923.541 Road Boxted 3.50 4.50 9.00 20.00 24.00 19.00 0.599 1333.036 Road South The Avenue 3.45 5.10 12.00 29.00 24.50 17.00 0.635 1476.488

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Overview: Time Segment Results

Time Segment Results Pedestrian Start End Queueing Geometric Average Delay Demand Capacity Time Segment Arm RFC Demand Queue Queue Total Delay Total Delay Per Arriving (Veh/hr) (Veh/hr) (Ped/hr) (Veh) (Veh) (Veh-min) (Veh-min) Vehicle (min) Boxted 16:45-17:00 Road 343.30 1167.34 0.294 0.00 0.00 0.41 6.04 (16.28) 0.073 North Warmark 16:45-17:00 6.02 713.94 0.008 0.00 0.00 0.01 0.12 (22.65) 0.085 Road Boxted 16:45-17:00 Road 478.82 1297.36 0.369 0.00 0.00 0.58 8.46 (18.58) 0.073 South The 16:45-17:00 93.35 1250.16 0.075 0.00 0.00 0.08 1.19 (16.33) 0.052 Avenue Boxted 17:00-17:15 Road 410.01 1101.55 0.372 0.00 0.39 0.59 8.60 (15.52) 0.087 North Warmark 17:00-17:15 7.20 581.30 0.012 0.00 0.01 0.01 0.18 (19.98) 0.105 Road Boxted 17:00-17:15 Road 572.01 1127.00 0.508 0.00 0.51 1.02 14.66 (16.20) 0.107 South The 17:00-17:15 111.49 1101.20 0.101 0.00 0.08 0.11 1.66 (15.24) 0.061 Avenue Boxted 17:15-17:30 Road 502.07 1089.42 0.461 0.00 0.59 0.84 12.30 (15.52) 0.102 North Warmark 17:15-17:30 8.81 528.69 0.017 0.00 0.01 0.02 0.25 (19.97) 0.115 Road Boxted 17:15-17:30 Road 700.25 1122.26 0.624 0.00 1.02 1.62 23.16 (16.19) 0.141 South The 17:15-17:30 136.53 1043.72 0.131 0.00 0.11 0.15 2.21 (15.24) 0.066 Avenue Boxted 17:30-17:45 Road 502.07 1089.34 0.461 0.00 0.84 0.85 12.71 (15.52) 0.102 North Warmark 17:30-17:45 8.81 528.16 0.017 0.00 0.02 0.02 0.25 (19.97) 0.116 Road Boxted 17:30-17:45 Road 700.25 1122.21 0.624 0.00 1.62 1.64 24.48 (16.19) 0.142 South The 17:30-17:45 136.53 1042.68 0.131 0.00 0.15 0.15 2.25 (15.24) 0.066 Avenue Boxted 17:45-18:00 Road 409.91 1110.72 0.369 0.00 0.86 0.59 9.08 (15.63) 0.086 North Warmark 17:45-18:00 7.19 630.20 0.011 0.00 0.02 0.01 0.18 (21.56) 0.096 Road Boxted 17:45-18:00 Road 570.97 1246.96 0.458 0.00 1.81 0.85 13.29 (17.92) 0.090 South The 17:45-18:00 111.45 1161.81 0.096 0.00 0.16 0.11 1.62 (15.80) 0.057 Avenue Boxted 18:00-18:15 Road 343.30 1119.22 0.307 0.00 0.59 0.45 6.82 (15.63) 0.077 North Warmark 18:00-18:15 6.02 671.36 0.009 0.00 0.01 0.01 0.14 (21.58) 0.090 Road Boxted 18:00-18:15 Road 478.81 1252.08 0.382 0.00 0.85 0.62 9.58 (17.95) 0.078 South The 18:00-18:15 93.35 1202.67 0.078 0.00 0.11 0.08 1.28 (15.81) 0.054 Avenue

file:///Z:/Stomor%20Ltd/2100%20Projects/2189-Hemel%20Hempstead-%20Land%2... 22/05/2012 APPENDIX N

LONG CHAULDEN LONG

R=10m approx. R=10m

R=10m approx. R=10m

NORTHRIDGE WAY NORTHRIDGE

NORTHRIDGE WAY NORTHRIDGE

Footway 2.0m min. 2.0m Footway

Hard paved verge paved Hard

2.0m min. 2.0m

Rev

Notes Client Description Drawing

Project

Proposed Improvements Proposed LEGEND

to the attention of the engineer immediately. engineer the of attention the to taken. be should dimensions written Only drawing. the off scale not Do

Any discrepancies or errors should be brought be should errors or discrepancies Any

Description

1:500

Land at Fields End, Hemel Hempstead Hemel End, Fields at Land Scale

Existing Layout and Proposed Improvments. Proposed and Layout Existing

Roundabout Junction of Long Chaulden and Chaulden Long of Junction Roundabout

11/05/12

Northridge Way. Northridge Date

Revisions

Architect

Drawing

Number

Drawn By Drawn

LAF

Tel 01462 615433 Fax 01462 615425 01462 Fax 615433 01462 Tel 9SP SG4 Herts, Hitchin, Road, Walsworth 19

Email [email protected] www.stomor.com [email protected] Email 4BQ AL7 Hertfordshire, City, Garden Welwyn Lane, Beehive 32

ST-2189-25

Registered Office: Registered

Design Office: Design

Date

Checked By Checked

DGS

Drawn Checked APPENDIX O

BOXTED ROAD

NORTHRIDGE WAY

WARNERS END ROAD

Rev

Roundabout Junctions Between Long Chaulden, Boxted Chaulden, Long Between Junctions Roundabout

Notes Client Description Drawing

Project

Proposed Improvements Proposed LEGEND

to the attention of the engineer immediately. engineer the of attention the to taken. be should dimensions written Only drawing. the off scale not Do

Any discrepancies or errors should be brought be should errors or discrepancies Any

Description

1:500

Land at Fields End, Hemel Hempstead Hemel End, Fields at Land Scale

Existing Layout and Proposed Improvements. Proposed and Layout Existing

Road and Northridge Way. Northridge and Road

11/05/12

Date

Revisions

Architect

Drawing

Number

Drawn By Drawn

LAF

Tel 01462 615433 Fax 01462 615425 01462 Fax 615433 01462 Tel 9SP SG4 Herts, Hitchin, Road, Walsworth 19

Email [email protected] www.stomor.com [email protected] Email 4BQ AL7 Hertfordshire, City, Garden Welwyn Lane, Beehive 32

ST-2189-26

Registered Office: Registered

Design Office: Design

Date

Checked By Checked

DGS

Drawn Checked LINSIG Report Proposed Layout – Issue 001 20th May 2012

WARNERS END ROAD / BOXTED ROAD / NORTHRIDGE HEMEL HEMPSTEAD CAPACITY REPORT

Traffic Signal Design Ltd Report No 001 T120502 OC 001

20th May 2012

Prepared for: Prepared by:

STOMOR Ltd Traffic Signal Design Ltd 50 Constance Avenue, Lincoln, LN6 8SN FAO: Duncan Stoten T: 01522 688707

E: [email protected]

Page 1 of 19

LINSIG Report Proposed Layout – Issue 001 20th May 2012

Basic Summary of Findings

Traffic Signal Design Ltd has been commissioned by STOMOR Ltd to investigate the option of introducing traffic signal controller to the junctions of Boxted Road / Long Chaulden & Warners End Road / Northgate. Currently the junctions operated as priority controlled mini roundabouts. The two junctions are approximately 30 meters apart and form two separate three arm junctions.

A traffic model of the existing junctions was produced this was based on current layout and lane availability. It was found that the junction would be seriously over capacity in this form.

A basic proposed layout was investigated that would require the provision of providing additional carriageway width and lanes at the two junctions and the link between them.

A revised LINSIG model was produced based of the proposal and the junction is detailed as working well within capacity – The proposal would be subject to detailed investigation as there are several unknowns at this time.

It should be noted that no provision has been provided for pedestrians within this model.

Detailed below are the associated findings of the LINSIG model based on the proposed layout.

AM Peak PM Peak Calculated (Cycle Time 90 Seconds) (Cycle Time 82 Seconds) Deg Sat MMQ Deg Sat MMQ Warners End Road 50.6% 7.8 63.8% 6.1 Northridge 75.5% 7.0 62.9% 6.3 Long Chaulden 17.0% 1.7 40.9% 3.6 Boxted Road 53.4% 8.3 57.0% 8.6 PRC PRC 19.2% 36.5 Fig 1

Page 2 of 19

LINSIG Report Proposed Layout – Issue 001 20th May 2012

Please find the detailed LINSIG results below:

User and Project Details Project: Proposed Signalisation

Title: Revised Layout to Existing Junctions Location: Warners End Rd / Northgate / Long Chaulden / Boxed Rd: Hemel Hempstead File name: Stomor Warners End 19-05-12 BC Changes.lsg3x Author: Barry Cheshire Company: Traffic Signal Design Ltd Address: 50 Constance Avenue Lincoln LN6 8SN ([email protected]) Notes: Subject to detailed investigation of proposed layout

Network Layout Diagram

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5/1 1 4/1 1 7/1 1 5/2 2 4/2 2 Arm 7 - Arm 5 - Haulden Arm 4 - Eastbound Inner A C Arm 3 - Westbound Inner Arm 1 - Warners End Road Arm 9 - 2 3/2 2 1/2 1 9/1 1 3/1 1 1/1

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Page 3 of 19

LINSIG Report Proposed Layout – Issue 001 20th May 2012

Phase Diagram

H G

C J F E D A

B I

Phase Input Data Phase Name Phase Type Assoc. Phase Street Min Cont Min

A Traffic 7 7 B Traffic 7 7

C Traffic 7 7

D Traffic 7 7

E Ind. Arrow D 4 4

F Traffic 7 7

G Filter H 4 0 H Traffic 7 7

I Filter B 4 0

J Ind. Arrow C 4 4

Page 4 of 19

LINSIG Report Proposed Layout – Issue 001 20th May 2012

Phase Intergreens Matrix Starting Phase

A B C D E F G H I J A - 5 ------

B 5 - 5 ------

C - 5 ------

D ------5 - - Terminating E - - - - - 5 - 5 - - Phase F - - - - 5 - 5 5 - - G - - - - - 5 - - - -

H - - - 5 5 5 - - - -

I ------

J ------

Phases in Stage Stage No. Phases in Stage

1 A C D F

2 C D E G I J

3 B H

4

Stage Diagram 1 Min >= 7 2 Min >= 4 3 Min >= 7 4 Min ? H G H G H G H G

C C C C J J J J F E F E F E F E D A D A D A D A

B B B B I I I I

Phase Delays Term. Stage Start Stage Phase Type Value Cont value

There are no Phase Delays defined

Prohibited Stage Change To Stage 1 2 3 4

1 5 5 X From 2 X 5 X Stage 3 5 X X

4 X X X

Page 5 of 19

Give-Way Lane Input Data Junction: Unnamed Junction

Max Flow Non-Blocking Max Turns when Opposing Opp. Lane Opp. Right Turn Right Turn Lane Movement Storage RTF in Intergreen Giving Way Lane Coeff. Mvmnts. Storage (PCU) Move up (s) (PCU) (PCU) (PCU/Hr)

3/2 5/1 1.09 5/1 10/1 (Right) 1439 2.00 - 0.50 2 2.00 (Westbound Inner) 5/2 1.09 5/2

4/2 1/1 1.09 1/1 8/1 (Right) 1439 2.00 - 0.50 2 2.00 (Eastbound Inner) 1/2 1.09 1/2

Page 6 of 19

Lane Input Data Junction: Unnamed Junction

Def User Physical Sat Lane Turning Lane Start End Saturation Nearside Lane Phases Length Flow Width Gradient Turns Radius Type Disp. Disp. Flow Lane (PCU) Type (m) (m) (PCU/Hr)

Arm 3 Inf 1/1 Ahead (Warners End U 2 3 60.0 Geom - 3.20 0.00 Y Arm 8 Road) Inf Left

1/2 Arm 3 (Warners End U A 2 3 60.0 Geom - 3.20 0.00 Y Inf Ahead Road)

2/1 Arm 3 (Northridge U B I 2 3 60.0 Geom - 3.20 0.00 Y Inf Left Way)

2/2 Arm 7 (Northridge U B 2 3 10.0 Geom - 3.20 0.00 Y Inf Right Way) 3/1 Arm 9 (Westbound U D 2 3 4.3 Geom - 2.97 0.00 Y Inf Ahead Inner)

3/2 Arm 10 (Westbound O D E 2 3 4.3 Geom - 2.97 0.00 Y Inf Right Inner)

4/1 Arm 7 (Eastbound U C 2 3 4.3 Geom - 2.90 0.00 Y Inf Ahead Inner) 4/2 Arm 8 (Eastbound O C J 2 3 4.3 Geom - 2.97 0.00 Y Inf Right Inner)

Arm 4 Inf 5/1 Ahead U 2 3 60.0 Geom - 3.20 0.00 Y (Haulden) Arm 10 Inf Left

5/2 Arm 4 U F 2 3 60.0 Geom - 3.20 0.00 Y Inf (Haulden) Ahead

6/1 Arm 4 (Boxted U H G 2 3 60.0 Geom - 3.20 0.00 Y Inf Left Road)

6/2 Arm 9 (Boxted U H 2 3 5.0 Geom - 3.20 0.00 Y Inf Right Road)

7/1 U 2 3 60.0 Inf ------8/1 U 2 3 60.0 Inf ------

9/1 U 2 3 60.0 Inf ------

10/1 U 2 3 60.0 Inf ------

Traffic Flow Groups Flow Group Start Time End Time Duration Formula

1: 'AM' 08:00 09:00 01:00

2: 'PM' 17:00 18:00 01:00

Page 7 of 19

Scenario 1: 'Scenario 1' (FG1: 'AM', Plan 1: 'Network Control Plan 1') Traffic Flows, Desired Desired Flow : Destination

A B C D Tot.

A 0 194 202 256 652

B 267 0 121 153 541 Origin C 365 164 0 82 611

D 470 231 85 0 786

Tot. 1102 589 408 491 2590

Traffic Lane Flows Scenario 1: Lane Scenario 1

Junction: Unnamed Junction

1/1 396

1/2 256

2/1 541(In) (with short) 274(Out)

2/2 267 (short)

3/1 323

3/2 409

4/1 835

4/2 395

5/1 447

5/2 164

6/1 786(In) (with short) 701(Out)

6/2 85 (short)

7/1 1102

8/1 589

9/1 408

10/1 491

Page 8 of 19

Lane Saturation Flows Junction: Unnamed Junction Lane Turning Nearside Allowed Turning Sat Flow Flared Sat Flow Lane Width Gradient Radius Lane Turns Prop. (PCU/Hr) (PCU/Hr) (m) (m)

1/1 Arm 3 Ahead Inf 51.0 % 3.20 0.00 Y 1935 1935 (Warners End Road) Arm 8 Left Inf 49.0 % 1/2 3.20 0.00 Y Arm 3 Ahead Inf 100.0 % 1935 1935 (Warners End Road)

2/1 3.20 0.00 Y Arm 3 Left Inf 100.0 % 1935 1935 (Northridge Way)

2/2 3.20 0.00 Y Arm 7 Right Inf 100.0 % 1935 1935 (Northridge Way)

3/1 2.97 0.00 Y Arm 9 Ahead Inf 100.0 % 1912 1912 (Westbound Inner)

3/2 2.97 0.00 Y Arm 10 Right Inf 100.0 % 1912 1912 (Westbound Inner)

4/1 2.90 0.00 Y Arm 7 Ahead Inf 100.0 % 1905 1905 (Eastbound Inner)

4/2 2.97 0.00 Y Arm 8 Right Inf 100.0 % 1912 1912 (Eastbound Inner)

5/1 Arm 4 Ahead Inf 81.7 % 3.20 0.00 Y 1935 1935 (Haulden) Arm 10 Left Inf 18.3 %

5/2 3.20 0.00 Y Arm 4 Ahead Inf 100.0 % 1935 1935 (Haulden)

6/1 3.20 0.00 Y Arm 4 Left Inf 100.0 % 1935 1935 (Boxted Road)

6/2 3.20 0.00 Y Arm 9 Right Inf 100.0 % 1935 1935 (Boxted Road)

7/1 Infinite Saturation Flow Inf Inf

8/1 Infinite Saturation Flow Inf Inf 9/1 Infinite Saturation Flow Inf Inf

10/1 Infinite Saturation Flow Inf Inf

Scenario 2: 'New Scenario' (FG2: 'PM', Plan 1: 'Network Control Plan 1') Traffic Flows, Desired Desired Flow : Destination

A B C D Tot.

A 0 271 348 392 1011

B 211 0 191 215 617 Origin C 206 102 0 123 431

D 298 147 112 0 557

Tot. 715 520 651 730 2616

Page 9 of 19

Traffic Lane Flows Scenario 2: Lane New Scenario

Junction: Unnamed Junction

1/1 619

1/2 392

2/1 617(In) (with short) 406(Out)

2/2 211 (short)

3/1 539

3/2 607

4/1 504

4/2 249

5/1 329

5/2 102

6/1 557(In) (with short) 445(Out)

6/2 112 (short)

7/1 715

8/1 520

9/1 651

10/1 730

Page 10 of 19

Lane Saturation Flows Junction: Unnamed Junction Lane Turning Nearside Allowed Turning Sat Flow Flared Sat Flow Lane Width Gradient Radius Lane Turns Prop. (PCU/Hr) (PCU/Hr) (m) (m)

1/1 Arm 3 Ahead Inf 56.2 % 3.20 0.00 Y 1935 1935 (Warners End Road) Arm 8 Left Inf 43.8 % 1/2 3.20 0.00 Y Arm 3 Ahead Inf 100.0 % 1935 1935 (Warners End Road)

2/1 3.20 0.00 Y Arm 3 Left Inf 100.0 % 1935 1935 (Northridge Way)

2/2 3.20 0.00 Y Arm 7 Right Inf 100.0 % 1935 1935 (Northridge Way)

3/1 2.97 0.00 Y Arm 9 Ahead Inf 100.0 % 1912 1912 (Westbound Inner)

3/2 2.97 0.00 Y Arm 10 Right Inf 100.0 % 1912 1912 (Westbound Inner)

4/1 2.90 0.00 Y Arm 7 Ahead Inf 100.0 % 1905 1905 (Eastbound Inner)

4/2 2.97 0.00 Y Arm 8 Right Inf 100.0 % 1912 1912 (Eastbound Inner)

5/1 Arm 4 Ahead Inf 62.6 % 3.20 0.00 Y 1935 1935 (Haulden) Arm 10 Left Inf 37.4 %

5/2 3.20 0.00 Y Arm 4 Ahead Inf 100.0 % 1935 1935 (Haulden)

6/1 3.20 0.00 Y Arm 4 Left Inf 100.0 % 1935 1935 (Boxted Road)

6/2 3.20 0.00 Y Arm 9 Right Inf 100.0 % 1935 1935 (Boxted Road)

7/1 Infinite Saturation Flow Inf Inf

8/1 Infinite Saturation Flow Inf Inf 9/1 Infinite Saturation Flow Inf Inf

10/1 Infinite Saturation Flow Inf Inf

Scenario 1: 'Scenario 1' (FG1: 'AM', Plan 1: 'Network Control Plan 1') Stage Sequence Diagram 1 Min: 7 2 Min: 4 3 Min: 7 G H

C C J F E D A D

I B 5 16s 5 34s 5 17s

Stage Timings Stage 1 2 3

Duration 16 34 17

Change Point 0 21 60

Page 11 of 19

Signal Timings Diagram

0 10 20 30 40 50 60 70 80

0 21 60 1 5 : 16 2 5 : 34 3 5 : 17

A A B B C C D D E E

Phases F F G G H H I I J J

0 10 20 30 40 50 60 70 80

Time in cycle (sec)

Page 12 of 19

Full Input Data And Results Network Layout Diagram

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PRC: 36.5 % 1

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Total Traffic Delay: 17.7 pcuHr

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Full Input Data And Results

Network Results Lane Lane Controller Position In Arrow Num Total Green Arrow Demand Sat Flow Capacity Deg Sat Item Full Phase Description Type Stream Filtered Route Phase Greens (s) Green (s) Flow (pcu) (pcu/Hr) (pcu) (%)

Network - - N/A ------65.9%

Unnamed - - N/A ------65.9% Junction

Warners End 1/1 Road Ahead U N/A N/A - - - - 396 1935 1935 20.5% Left

Warners End 1/2 U N/A N/A A 1 16 - 256 1935 401 63.8% Road Ahead

Northridge Way 2/1+2/2 U N/A N/A B I 1 61:17 44 541 1935:1935 861 62.9% Left Right

Westbound 3/1 U N/A N/A D 1 55 - 323 1912 1306 24.7% Inner Ahead

Westbound 3/2 O N/A N/A D E 1 55 34 409 1912 620 65.9% Inner Right

Eastbound 4/1 U N/A N/A C 1 55 - 835 1905 1301 64.2% Inner Ahead

Eastbound 4/2 O N/A N/A C J 1 55 39 395 1912 604 65.3% Inner Right

Haulden Ahead 5/1 U N/A N/A - - - - 447 1935 1935 23.1% Left

5/2 Haulden Ahead U N/A N/A F 1 16 - 164 1935 401 40.9%

Boxted Road 6/1+6/2 U N/A N/A H G 1 56:17 39 786 1935:1935 1379 57.0% Left Right

7/1 U N/A N/A - - - - 1102 Inf Inf 0.0%

8/1 U N/A N/A - - - - 589 Inf Inf 0.0%

9/1 U N/A N/A - - - - 408 Inf Inf 0.0%

10/1 U N/A N/A - - - - 491 Inf Inf 0.0%

Page 14 of 19

Full Input Data And Results Rand + Mean Turners When Turners In Uniform Storage Area Total Av. Delay Max. Back of Rand + Leaving Turners In Oversat Max Item Arriving (pcu) Unopposed Intergreen Delay Uniform Delay Per PCU Uniform Oversat (pcu) Gaps (pcu) Delay Queue (pcu) (pcu) (pcuHr) Delay (pcuHr) (pcuHr) (s/pcu) Queue (pcu) Queue (pcu) (pcuHr) (pcu)

Network - - 804 0 0 10.6 5.9 1.2 17.7 - - - -

Unnamed - - 804 0 0 10.6 5.9 1.2 17.7 - - - - Junction

1/1 396 396 - - - 0.0 0.1 - 0.1 1.2 0.0 0.1 0.1

1/2 256 256 - - - 2.1 0.9 - 3.0 41.9 5.3 0.9 6.1

2/1+2/2 541 541 - - - 2.4 0.8 - 3.2 21.3 5.5 0.8 6.3

3/1 323 323 - - - 0.4 0.2 - 0.6 6.8 2.8 0.2 2.9

3/2 409 409 409 0 0 0.4 1.0 0.6 2.0 17.3 1.4 1.0 2.4

4/1 835 835 - - - 1.6 0.9 - 2.5 10.7 8.5 0.9 9.4

4/2 395 395 395 0 0 0.6 0.9 0.6 2.1 19.0 2.1 0.9 3.0

5/1 447 447 - - - 0.0 0.2 - 0.2 1.2 0.0 0.2 0.2

5/2 164 164 - - - 1.3 0.3 - 1.6 35.7 3.2 0.3 3.6

6/1+6/2 786 786 - - - 1.8 0.7 - 2.4 11.2 7.9 0.7 8.6

7/1 1102 1102 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

8/1 589 589 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

9/1 408 408 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

10/1 491 491 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

C1 PRC for Signalled Lanes (%): 36.5 Total Delay for Signalled Lanes (pcuHr): 17.42 Cycle Time (s): 82 PRC Over All Lanes (%): 36.5 Total Delay Over All Lanes(pcuHr): 17.70

Page 15 of 19

Scenario 2: 'New Scenario' (FG2: 'PM', Plan 1: 'Network Control Plan 1') Stage Sequence Diagram 1 Min: 7 2 Min: 4 3 Min: 7 G H

C C J F E D A D

I B 5 35s 5 28s 5 12s

Stage Timings Stage 1 2 3

Duration 35 28 12

Change Point 0 40 73

Signal Timings Diagram

0 10 20 30 40 50 60 70 80 90

0 40 73 1 5 : 35 2 5 : 28 3 5 : 12

A A B B C C D D E E

Phases F F G G H H I I J J

0 10 20 30 40 50 60 70 80 90

Time in cycle (sec)

Page 16 of 19

Network Layout Diagram

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PRC: 19.2 % 1

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Total Traffic Delay: 17.3 pcuHr

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Network Results Lane Lane Controller Position In Arrow Num Total Green Arrow Demand Sat Flow Capacity Deg Sat Item Full Phase Description Type Stream Filtered Route Phase Greens (s) Green (s) Flow (pcu) (pcu/Hr) (pcu) (%)

Network - - N/A ------75.5%

Unnamed - - N/A ------75.5% Junction

Warners End 1/1 Road Ahead U N/A N/A - - - - 619 1935 1935 32.0% Left

Warners End 1/2 U N/A N/A A 1 35 - 392 1935 774 50.6% Road Ahead

Northridge Way 2/1+2/2 U N/A N/A B I 1 50:12 38 617 1935:1935 817 75.5% Left Right

Westbound 3/1 U N/A N/A D 1 68 - 539 1912 1466 36.8% Inner Ahead

Westbound 3/2 O N/A N/A D E 1 68 28 607 1912 807 75.2% Inner Right

Eastbound 4/1 U N/A N/A C 1 68 - 504 1905 1461 34.5% Inner Ahead

Eastbound 4/2 O N/A N/A C J 1 68 33 249 1912 426 58.5% Inner Right

Haulden Ahead 5/1 U N/A N/A - - - - 329 1935 1935 17.0% Left

5/2 Haulden Ahead U N/A N/A F 1 35 - 102 1935 774 13.2%

Boxted Road 6/1+6/2 U N/A N/A H G 1 45:12 33 557 1935:1935 1043 53.4% Left Right

7/1 U N/A N/A - - - - 715 Inf Inf 0.0%

8/1 U N/A N/A - - - - 520 Inf Inf 0.0%

9/1 U N/A N/A - - - - 651 Inf Inf 0.0%

10/1 U N/A N/A - - - - 730 Inf Inf 0.0%

Rand + Storage Area Mean Turners When Turners In Uniform Total Av. Delay Max. Back of Rand + Leaving Turners In Oversat Uniform Max Item Arriving (pcu) Unopposed Intergreen Delay Delay Per PCU Uniform Oversat (pcu) Gaps (pcu) Delay Delay Queue (pcu) (pcu) (pcuHr) (pcuHr) (s/pcu) Queue (pcu) Queue (pcu) (pcuHr) (pcuHr) (pcu)

Network - - 856 0 0 10.4 5.8 1.2 17.3 - - - -

Unnamed - - 856 0 0 10.4 5.8 1.2 17.3 - - - - Junction

1/1 619 619 - - - 0.0 0.2 - 0.2 1.4 0.0 0.2 0.2

1/2 392 392 - - - 2.2 0.5 - 2.7 25.0 7.3 0.5 7.8

2/1+2/2 617 617 - - - 3.4 1.5 - 4.9 28.5 5.5 1.5 7.0

3/1 539 539 - - - 0.5 0.3 - 0.8 5.3 4.1 0.3 4.4

3/2 607 607 607 0 0 0.3 1.5 0.5 2.3 13.7 1.3 1.5 2.8

4/1 504 504 - - - 0.5 0.3 - 0.7 5.4 3.9 0.3 4.2

4/2 249 249 249 0 0 0.2 0.7 0.7 1.6 22.7 0.9 0.7 1.6

5/1 329 329 - - - 0.0 0.1 - 0.1 1.1 0.0 0.1 0.1

5/2 102 102 - - - 0.5 0.1 - 0.6 19.8 1.6 0.1 1.7

6/1+6/2 557 557 - - - 2.8 0.6 - 3.4 21.9 7.7 0.6 8.3

7/1 715 715 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

8/1 520 520 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

9/1 651 651 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

10/1 730 730 - - - 0.0 0.0 - 0.0 0.0 0.0 0.0 0.0

C1 PRC for Signalled Lanes (%): 19.2 Total Delay for Signalled Lanes (pcuHr): 17.00 Cycle Time (s): 90 PRC Over All Lanes (%): 19.2 Total Delay Over All Lanes(pcuHr): 17.33

BOXTED ROAD

NORTHRIDGE WAY

WARNERS END ROAD

Rev

Notes Client Description Drawing

Project

Junctions Between Long Chaulden, Boxted Road and Road Boxted Chaulden, Long Between Junctions

Proposed Improvements Proposed LEGEND

to the attention of the engineer immediately. engineer the of attention the to taken. be should dimensions written Only drawing. the off scale not Do

Any discrepancies or errors should be brought be should errors or discrepancies Any

Description

1:500

Land at Fields End, Hemel Hempstead Hemel End, Fields at Land Scale

Existing Layout and Proposed Signalisation Proposed and Layout Existing

13/06/12

Date

Northridge Way. Northridge

Revisions

Architect

Drawing

Number

Drawn By Drawn

LAF

Tel 01462 615433 Fax 01462 615425 01462 Fax 615433 01462 Tel 9SP SG4 Herts, Hitchin, Road, Walsworth 19

Email [email protected] www.stomor.com [email protected] Email 4BQ AL7 Hertfordshire, City, Garden Welwyn Lane, Beehive 32

ST-2189-29

Registered Office: Registered

Design Office: Design

Date

Checked By Checked

DGS

Drawn Checked APPENDIX P

WARNERS END ROAD END WARNERS

LEIGHTON BUZZARD ROAD BUZZARD LEIGHTON LEIGHTON BUZZARD ROAD BUZZARD LEIGHTON

QUEENSWAY

Rev

Notes Client Description Drawing

A

Project

Roundabout Junction Between Warners End Road and Road End Warners Between Junction Roundabout

Proposed Improvements Proposed LEGEND

to the attention of the engineer immediately. engineer the of attention the to taken. be should dimensions written Only drawing. the off scale not Do

Any discrepancies or errors should be brought be should errors or discrepancies Any

Amendments to proposed layout to accommodate a higher vehicle capacity vehicle higher a accommodate to layout proposed to Amendments

Description

1:500

Land at Fields End, Hemel Hempstead Hemel End, Fields at Land Scale

Existing Layout and Proposed Improvements Proposed and Layout Existing

Leighton Buzzard Road (A4146) Road Buzzard Leighton

12/04/12

Date

Revisions

Architect

Drawing

Number

Drawn By Drawn

LAF

Tel 01462 615433 Fax 01462 615425 01462 Fax 615433 01462 Tel 9SP SG4 Herts, Hitchin, Road, Walsworth 19

Email [email protected] www.stomor.com [email protected] Email 4BQ AL7 Hertfordshire, City, Garden Welwyn Lane, Beehive 32

ST-2189-27-A

Registered Office: Registered

Design Office: Design

13/06/12

Date

Checked By Checked

DGS

Drawn

LAF

Checked DGS