Two lanes formed at give way to provide 3.5m lane width in line with maximum permitted under TD16/07

Roundabout approach checked Protection works to existing Working in Partnership manhole to ensure suitable for and meets TD9/93 in terms of carriageway running horizontal curvature and SSD Origin Two, Origin Way, Europarc, , North East Waltham Road , DN37 9TZ HD037-18-P03 Tie carriageway back into Tel: 01472 313131 Splitter island inclusive of existing width over a 1:50 taper retroreflective bollard but with no Existing verge to be regraded to as per TD27/05 NOTES pedestrian facilities tie into new levels at Mapping material in this plot has been reproduced from the Ordnance Existing fence to remain at back Splitter island, with dropped Survey Digital Data with the permission of the Controller of HMSO (c). of cycle path kerbs to allow cyclists to utilise to Widen existing carriageway into cross Waltham Road. Minimum verge to provide a 7.3m wide Crown Copyright Reserved 1996, Licence No 100020759 Existing grass verge removed and cycle island width at drop is 1.8m carriageway with PCC kerbs to Unauthorised reproduction infringes Crown Copyright and may lead to path widened to run adjacent meet TD16/07 requirement for prosecution or civil proceedings. carriageway - approx 2.0m wide for full Altered alignment of cycle path kerbing at length of cycle track. PCC kerb laid Alteration to existing cycle path adjacent cycle track and carriageway to utilise splitter island as safe Roundabout Parameters widened to 7.3m as per TA57/87 crossing point (cycles only) ICD = 38m Existing water apparatus A18 requiring protection/diversion as Overrun width = 4m will now fall within carriageway Central island = 14m Two lanes formed at give way to Circulatory carriageway = 8.0m provide 3.5m lane width in line with maximum permitted under TD16/07

Splitter island, inclusive of retroreflective bollard but no Regrade proposed/existing verge pedestrian facilities in line with new levels.

Existing highway boundary hedge to remain

PCC kerbs to be laid mirroring Existing kerb drain to remain to north kerb line east of scheme PCC to be laid Widen existing carriageway into up to new roundabout verge to provide a 7.3m wide Existing double white line system Notes carriageway with PCC kerbs to to be refreshed meet TD16/07 requirement for AS102 41.619 kerbing at roundabouts 1. Design speed of carriageway determined from

Roundabout approach checked TD9/93 as 100B. and meets TD9/93 in terms of 2. Under TD9/93 relaxations are permitted at the horizontal curvature and SSD discretion of the designer to 4 steps below the desirable minimum values. Removal of at least 4 trees which should be replaced 3. Roundabout design in line with TD16/07, no departures or relaxations required in terms of horizontal alignment, vertical alignment yet to be 200 Central island including 3m A18 overrun area. Cannot be planted designed. due to circulatory visibility 4. Roundabout has been designed as a normal Field access to remain requirements of TD16/07 roundabout although two way AADT only just Circulatory carriageway forming New PCC kerbs from two 4.0m lanes this point exceeds 8000 vehicles which is the cut off between compact and normal. Approaches remain single Verge/landscaping strip to be Existing hedge to formed to a maximum 1 in 3 remain lane and widened at give way line to provide two

SCHEME 3 WALTHAM ROAD ROUNDABOUT - PRELIMINARY DESIGN batter where required lane separate lanes, therefore less requirement for

Two lanes formed at give way to land take. Land required 532m² this provide 3.5m lane width 5. Cross sections in line with TD27/05. includes a landscaping strip of maximum permitted under 6. In line with the requirements of TD16/07 black box 5.0m wide, which would become TD16/07 batter Removal of 1 tree which should 8.24 road lighting at the roundabout should be be replaced Existing kerb drain to be retained New planted hedge considered in accordance with DMRB 8.3. to form new highway Roundabout approach checked boundary and meets TD9/93 in terms of horizontal curvature and SSD PRELIMINARY DESIGN (Scale 1:500)

Key

SB1 37.810 100

SB2 38.146 Proposed carriageway Proposed carriageway

SB3 42.775 resurfacing widening

SB4 A1846.945

AS3 42.315 Proposed verge works WALTHAM ROAD

AS2 43.062 Existing highway boundary Letter Amendment Drawn Date

AS1 42.146

Two lanes formed at give way to provide 3.5m lane width in line with maximum permitted under TD16/07

Protection works to existing Roundabout approach checked manhole to ensure suitable for and meets TD9/93 in terms of carriageway running horizontal curvature and SSD Waltham Road Tie carriageway back into Splitter island inclusive of existing width over a 1:50 taper retroreflective bollard but with no Existing verge to be regraded to as per TD27/05 pedestrian facilities tie into new levels at roundabout Existing fence to remain at back Splitter island, with dropped of cycle path kerbs to allow cyclists to utilise to Widen existing carriageway into cross Waltham Road. Minimum verge to provide a 7.3m wide Existing grass verge removed and cycle island width at drop is 1.8m carriageway with PCC kerbs to path widened to run adjacent meet TD16/07 requirement for carriageway - approx 2.0m wide for full Altered alignment of cycle path kerbing at roundabouts length of cycle track. PCC kerb laid Alteration to existing cycle path adjacent cycle track and carriageway AS101 to utilise splitter island as safe 41.654 widened to 7.3m as per TA57/87 crossing point (cycles only)

Existing water apparatus A18 requiring protection/diversion as will now fall within carriageway CLIENT Two lanes formed at give way to provide 3.5m lane width in line with maximum permitted under TD16/07

Splitter island, inclusive of retroreflective bollard but no Regrade proposed/existing verge pedestrian facilities in line with new levels.

Existing highway boundary hedge to remain

PCC kerbs to be laid mirroring Existing kerb drain to remain to north kerb line east of scheme PCC to be laid Widen existing carriageway into up to new roundabout verge to provide a 7.3m wide Existing double white line system carriageway with PCC kerbs to to be refreshed meet TD16/07 requirement for AS102 41.619 kerbing at roundabouts

Roundabout approach checked and meets TD9/93 in terms of horizontal curvature and SSD

Removal of at least 4 trees which should be replaced

Central island including 3m A18 overrun area. Cannot be planted

HD037 due to circulatory visibility requirements of TD16/07 Field access to remain

Circulatory carriageway forming New PCC kerbs from two 4.0m lanes this point

Verge/landscaping strip to be Existing hedge to formed to a maximum 1 in 3 remain AS103 batter where required 41.151

Two lanes formed at give way to Land required 532m² this provide 3.5m lane width includes a landscaping strip of maximum permitted under 5.0m wide, which would become TD16/07 batter Removal of 1 tree which should be replaced Existing kerb drain to be retained New planted hedge to form new highway Roundabout approach checked Proposed cycle path boundary and meets TD9/93 in terms of horizontal curvature and SSD AS104 37.587

LH13 29.635 COUNCIL

LH12 28.077

LH11 A1834.341 PROJECT

LH10 35.909 Proposed roundabout overrun A18 ROAD SAFETY SCHEME

CL20 39.813 width in coloured material

CL21 42.713 TITLE

CL22 45.372 SCHEME 3 WALTHAM ROAD ROUNDABOUT

CL23 46.477 Land required = 532m² = 0.053ha PRELIMINARY DESIGN

PN9 49.785

PN8 52.003 DRAWN DATE PROJECT ID D Slack 04/09/18 HD037

PN7 LOCATION - Scale NTS 52.576 New hedge forming proposed CHECKED DATE DRAWING No. highway boundary A Hinchcliffe 04/09/18 ORIGINAL SIZE SCALE A2 ( 594 x 420) 1:500 HD037-18-P03

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