Saltash Transport

Strategy Development

Appendix B – Town Model Report

September 2016

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CORNWALL COUNCIL CORNWALL TOWNS MODELS

SALTASH TOWN MODEL

TECHNICAL NOTE 14 – ISSUE 6

19TH OCTOBER 2012 PROJECT: 285300FN-HLV

1 EXECUTIVE SUMMARY

This report examines how the highway network within Saltash is predicted to operate in 2030 with levels of development growth proposed in the emerging Core Strategy. Allowances have been made for background traffic growth and development-related traffic. A series of strategic sustainable transport measures and highways network improvements are proposed to mitigate the impacts of this growth.

A traffic model has been developed for Saltash which has been used to predict where congestion and delays willARCHIVED occur in 2030. An assumed level of modal switch from the private car was then modelled to reflect what could be achieved through the proposed sustainable transport measures. This highlighted any remaining key issues on the highway network; where necessary, potential highway improvement schemes have been identified and initial cost estimates for the works provided.

The following table summarises those locations which are predicted to experience future capacity issues (afterEVIDENCE the sustainable measures have been implemented), along with the recommended improvements and indicative costs of these works.

Junction Improvement Scheme Indicative Costs * A38DOCUMENT Carkeel Roundabout Larger signalised roundabout £2,304,282 B3271 / New Road Ban of right turns from B3271 Callington £425,952 Signalised junction Road approaches A38 / B3271 Liskeard Road Widening / improved standard off-slip £300,000 Junction

TOTAL £3,030,234

Table 1-1: Junction Improvements Summary

* Please note the cost estimates exclude land costs (including compensation), design and supervision, inflation, VAT or diversion to any underground stats or services. An allowance of 45% has been added in respect of risk / contingency to reflect the outline nature of the design at this stage.

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The recommended measures to form part of the transport strategy are:

x Committed highway improvement schemes1: o Carkeel Roundabout and pedestrian overbridge (Phase 1). x Improved cycling and walking infrastructure: o Improved walking route on Callington Road, Salt Mill, Carkeel to the Tamar Valley Industrial Estate; o Pedestrian overbridge between new development cells; o Improvements to the Saltash Cycle network and increased cycle racks in town centre; o Improved pedestrian / cycle links from new developments south of the A38 into town centre. x Improved bus service provision and frequency (associated with the Cornwall Bus Vision), including: o Increased bus service frequency to Bodmin, Liskeard, St Columb Major, Callington and Launceston (from hourly to half-hourly), with remaining to Bude every 2 hours. o Real Time Passenger Information; o Improved waiting facilities; xARCHIVED Improvement to rail frequency to half-hourly between Exeter and Penzance (including Saltash); x Upgrade to Saltash Rail Station including parking facilities; x Travel Planning and smarter choices; x Junction improvement schemes at: EVIDENCEo A38 Carkeel Roundabout; o B3271 / New Road Signalised junction; o A38 / B3271 Liskeard Road Junction.

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1 There may be other schemes within Saltash with committed funding but these are not necessarily being reflected in this report. For a full list of schemes in the Saltash area please refer to the Transport Strategy Map.

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2 INTRODUCTION

2.1 Background

2.1.1 Parsons Brinckerhoff (PB) has been commissioned by Cornwall Council (CC) to test future development allocations in 11 main towns in Cornwall, and develop transport strategies for these towns that will mitigate the impact of growth proposed through the emerging Core Strategy. This work is Phase 3 of the project, and builds on the work carried out for Phases 1 and 2 which have now been completed.

2.1.2 Phases 1 and 2 of the project involved developing or updating existing transport models for the towns and assessing a series of development scenarios in each town for the year of 2030. Phase 3 of the project has involved modelling the preferred development scenario for each town (identified using the outputs from the previous work) to assess the impact of future development, and identifying measures, including sustainable measures and highway improvements, to allow the impact of development growth to be mitigated. The sustainable measures were provided by CC and modelled using the methodology detailed in ‘Technical Note 01 – Application of Mode Shift’.

2.1.3 Models have been developed for the following towns:

xARCHIVED Bude and Stratton; x Falmouth and Penryn; x Hayle, St Ives and Carbis Bay; x Launceston; x EVIDENCE Liskeard; x Newquay; x Penzance; x Saltash; x St. Austell; DOCUMENTx Truro.

2.1.4 Models which have previously been developed for Camborne-Pool-Redruth (by Mott MacDonald) and Bodmin (by WSP) for other projects, have also been used in this project.

2.1.5 The sustainable measures aim to improve and promote sustainable travel in all towns by improving walking, cycling, bus and rail services. This supports the aims set out in Cornwall’s transport strategy, Connecting Cornwall: 2030. Further details regarding the sustainable transport strategy for Saltash can be found in Section 5 of this report.

2.1.6 The sustainable measures, further public transport improvements and highways schemes will form a transport strategy for each town, with the aim of mitigating the impact of future development growth and encouraging sustainable travel.

2.1.7 This report focuses on the model of Saltash.

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2.2 Structure of Report

2.2.1 The structure of this report is as follows:

x Section 3 – Provides details on the model development;

x Section 4 – Provides details on the 2030 Do Minimum scenario;

x Section 5 – Provides details on the 2030 Do Something scenario;

x Section 6 – Provides details of the junction capacity assessments;

x Section 7 – Provides details of the proposed highway improvement schemes;

x Section 8 – Provides a summary of the transport strategy.

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3 MODEL DEVELOPMENT

3.1 Model Software

3.1.1 The Saltash Town Model has been developed using the SATURN highways assignment model version 10.9.17.

3.1.2 Due to time constraints in the project programme, no origin-destination data was able to be collected specifically for this project. The models were therefore constructed using Census Travel to Work data as the basis for producing base year trip matrices of existing travel patterns. Whilst the model has been constructed using DfT best practice and guidance detailed in WebTAG and the Design Manual for Roads and Bridges (DMRB), and calibrated using DMRB model calibration criteria, the model is not fully WebTAG compliant.

3.2 Modelled Years and Time Periods

3.2.1 The base year model was constructed to present a neutral, non-seasonal month in 2010. Future year models have been developed for a neutral month in the future year of 2030. The base and future year models represent both the AM and PM peak periods:

x AM peak hour – 08:00 to 09:00 xARCHIVED PM peak hour – 17:00 to 18:00

3.2.2 Models were produced for the 2030 Do Minimum (including future development and committed highway schemes only) and 2030 Do Something scenarios (also including the sustainableEVIDENCE transport measures). 3.2.3 Neutral month models were constructed to represent periods when traffic flows are at average levels, and that the impact of development traffic on the network can be considered to be typical. It is usual for this period to be represented in transport studies, and is usually the period that developers are asked to assess as part of planning applications. 3.3 DOCUMENT User Classes 3.3.1 There are three user classes defined in the model with a separate demand matrix for each. Further details regarding these user classes can be found within the ‘Saltash Local Validation Report’ (WHV285300DS/2/3 – December 2011). The user classes are:

x UC1 – Light Vehicles x UC2 – Heavy vehicles x UC3 – Synthesised trips

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3.4 Model Area

3.4.1 A plan of the modelled study area is shown in Figure 3.1. The model extends from north west of Saltash, the A38 Liskeard Road / Stoketon Cross junction to the Tamar Bridge to east side of Saltash, and covers St Stephen’s Hill / Wearde Road in the south of Saltash extending to the A388/Stoketon Cross junction in the north.

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Figure 3.1: Saltash Model Study Area 3.5 ZoneEVIDENCE System 3.5.1 The zone system remains the same as in the forecast models produced in the Phase 1 and 2 work as outlined in the ‘Saltash Local Validation Report’.

3.5.2 Zones in the model have been categorised as internal, external or development zones. DOCUMENTInternal zones represent areas in the town centres of Saltash; external zones cover the rest of Cornwall, Devon and the UK. Development zones represent specific development sites.

3.6 Model Network Development

3.6.1 The future year development scenario has been developed based on the information provided by CC. It includes growth in houses, jobs and other land uses within Saltash between the base year and the modelled forecasting year of 2030.

3.6.2 Following consultation with Cornwall Council, two models were developed to test the impact of future developments for two scenarios relating to the urban extensions. The two scenarios are described below and both include other developments in town and urban sites specified by Cornwall Council. These are as shown in Figure 4.2 and Figure 4.3.

x Scenario 4 – Developments on site A2, north west of the A38,

x Scenario 5 – Same amount of development on site A7, south west of the A38.

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3.6.3 The SATURN network used for Phases 3 was developed from the network used for Phase 2 of the project. Following consultation with CC the network was altered to include the following committed highway scheme2:

x An improvement scheme at the A38 Carkeel Roundabout, based on a scheme proposed by Tesco as part of their recent planning application. The scheme information was provided by CC and is included in Appendix A.

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2 There may be other schemes within Saltash with committed funding but these are not necessarily being reflected in this report. For a full list of schemes in the Saltash area please refer to the Transport Strategy Map.

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4 2030 DO MINIMUM SCENARIO

4.1 Overview

4.1.1 The diagram below summarises the process undertaken to produce the 2030 demand matrices. The steps are explained in more detail in the following sections.

FigureARCHIVED 4.1: Matrix development process 4.2 Initial Matrix

4.2.1 The base year (2010) trip matrices have been used as the basis for producing the 2030 future year matrices. 4.3 CommittedEVIDENCE Developments 4.3.1 Table 4.1 outlines the committed development provided by CC which has been included within the future year models.

Committed Developments 2010 – 2030 No. Dwellings Total Extant Permissions / UC 126 DOCUMENTDevelopments in Town 126 Table 4.1: Committed developments for Saltash for 2010-2030

4.4 Preferred Future Development

4.4.1 Two development scenarios are being considered by Cornwall Council to deliver the level of future development growth outlined in the Core Strategy. These scenarios are Scenarios 4 and 5 from the development assessments that were carried out in the previous stage of this project.

4.4.2 Table 4.2 outlines the proposed core strategy development that is included in both Scenario 4 and Scenario 5. Tables 4.3 and 4.4 list the proposed core strategy developments on the urban extension sites for Scenarios 4 and 5 respectively.

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Sqm by Use Class Urban Sites 2010-2030 No. Dwellings A B1a/b B1c/B2/B8 D / Sui Total Urban Sites 42 3797 Parkway/Moorlands Industrial Estate, Burraton Road 42 1525 Saltash Industrial Estate, Gilston Road 2272 Table 4.2: Development on Urban Sites for Saltash 2010-2030

2030 Scenario 4 Sqm by Use Class Urban Extensions 2010-2030 No. Dwellings A B1a/b B1c/B2/B8 D / Sui Total Urban Extension 1032 5699 17146 7995 A1 A2 600 3500 15559 A3 1000 7000 A4 82 A5 A6 A7 ARCHIVEDA7 north 350 2199 587 995 Table 4.3: Development on Urban Extension Sites for Saltash 2010-2030 (Scenario 4)

2030 Scenario 5 Sqm by Use Class Urban Extensions 2010-2030 No. Dwellings A B1a/b B1c/B2/B8 D / Sui EVIDENCETotal Urban Extension 1032 5699 17146 7995 A1 A2 A3 1000 7000 A4 82 DOCUMENTA5 A6 A7 600 3500 15559 A7 north 350 2199 587 995 Table 4.4: Development on Urban Extension Sites for Saltash 2010-2030 (Scenario 5)

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4.4.3 The future development locations are shown in Figure 4.2 and 4.3 for Scenarios 4 and 5.

ARCHIVED FigureEVIDENCE 4.2: Scenario 4 Development Locations DOCUMENT

Figure 4.3: Scenario 5 Development Locations

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4.5 Background Traffic Growth

4.5.1 It is assumed that development zones represent future development trip loading points. Traffic growth at all non-development zones was represented by applying traffic growth factors derived from National Trip End Model (NTEM) data sets (data set 6.2) using TEMPRO software version 6.2; this tool and associated datasets are the DfT approved software package for applying traffic growth.

4.5.2 To avoid double counting, future development was removed from NTEM before growth factors were extracted; the growth factors therefore represent background traffic growth only, due to underlying growth in the economy, car ownership or trip making.

4.5.3 Table 4.5 shows the adjusted growth factors applied to the non-development trip matrices; Table 4.6 indicates the growth factors used for light and heavy vehicles.

NTEM Peak Zone Level Name Origin Destination External Region Southwest 1.12 1.14 AM Internal Authority Caradon 1.05 1.16 Internal District Saltash 1.00 1.13 ARCHIVEDExternal Region Southwest 1.15 1.14 PM Internal Authority Caradon 1.16 1.09 Internal District Saltash 1.08 1.10 Table 4.5: 2030 NTEM Adjusted Growth Rates (Private Car)

Peak Level Name NTM AM Region Southwest 1.27 EVIDENCEPM Region Southwest 1.29 Table 4.6: 2030 NTEM Adjusted Growth Rates (LGV and HGV)

4.6 2030 Demand

4.6.1 The trip matrices developed from the above process are the 2030 Do Minimum matrices, DOCUMENTwhich contain background and development traffic growth between 2010 and 2030. 4.6.2 The 2030 matrices contain separate user classes for development and non-development traffic, which allows development traffic to be analysed separately if required.

4.6.3 Table 4.7 shows the overall growth in demand between the base year 2010 and the future year of 2030. It can be seen overall traffic demand will increase by approximately 25% in the AM Peak and 24% in the PM Peak for Scenario 4 and 24% in the AM Peak and 23% in PM Peak for Scenario 5 respectively.

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Trips (PCU) AM Peak PM Peak Base 2010 6779 6923 Without Sustainable Measures Scenario 4 Future 2030 8493 8605 Growth 25% 24% Scenario 5 Future 2030 8397 8501 Growth 24% 23% Table 4.7: Growth in 2030 Model (2010-2030)

4.7 2030 Do Minimum Capacity and Delay Maps

4.7.1 Using the 2030 trip matrices developed from the above processes, capacity and delay maps have been produced for the 2030 Do Minimum scenario. These plans show where areas of congestion (in terms of capacity and delay impacts) are predicted on the network in 2030. The capacity maps are shown in Appendix B (Figures B1 to B4), with the delay maps in Appendix C (Figures C1 to C4).

4.7.2 TheARCHIVED capacity maps use the volume over capacity (V/C) results from the 2030 AM and PM SATURN models. The delay results show the delay per vehicle experienced at the junctions.

4.7.3 It should be noted that the initial runs of the model resulted in significant congestion and delays at Carkeel Roundabout on the A38 in 2030. Due to the location of development to the north of Saltash in Scenario 4 loading onto the network close to this roundabout, a reasonable volumeEVIDENCE of traffic was stuck in congestion at this junction and not appearing in other parts of the network within Saltash. Therefore, the capacity and delay maps in Appendices B and C have been produced from the traffic models including an improvement scheme at Carkeel Roundabout. Further information is provided on the operation of the junction in Section 6.

4.7.4 The capacity maps show that capacity issues are predicted at five junctions within Saltash in DOCUMENT2030; these are the following junctions: x A38 Carkeel Roundabout; x B3271 / New Road signalised junction; x A38 / B3271 Liskeard Road (on slip); x A38 / B3271 Liskeard Rd (right turn); x A38 / Unclassified Road connecting to A388 (Stoketon Cross) junction.

4.7.5 The above junctions are those which experience a V/C ratio in excess of 95% in one of the peak periods (shown as a red triangle or a black square on the capacity plans). Junctions with a red triangle are considered to be at capacity; those with a black square are operating above capacity.

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4.8 2030 Do Minimum Demand Flows

4.8.1 Appendix D shows the AM and PM traffic demand flows, comparing link flow between the base, 2030 Do Minimum and 2030 Do Something models.

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5 2030 DO SOMETHING SCENARIO

5.1 Overview

5.1.1 The future year Do Something models have incorporated the impact of the range of transport sustainable measures identified by CC that could form part of the transport strategy.

5.1.2 For Saltash, the sustainable measures proposed by Cornwall Council include:

x Improved cycling and walking infrastructure; o Improved walking route on Callington Road, Salt Mill, Carkeel to the Tamar Valley Industrial Estate; o Pedestrian overbridge between new development cells; o Improvements to the Saltash Cycle network and increased cycle racks in town centre; o Improved pedestrian / cycle links from new developments south of the A38 into town centre. x Improved bus service provision and frequency (associated with the Cornwall Bus Vision), including o Increased bus service frequency to Bodmin and Liskeard, St Columb Major, Callington and Launceston (from hourly to half-hourly), ARCHIVED Real Time Passenger Information; o o Improved waiting facilities; x Improvement to rail frequency to half-hourly between Exeter and Penzance (including Saltash); x Upgrade to Saltash Rail Station including parking facilities; x EVIDENCE Travel Planning and smarter choices. 5.1.3 Further details on the methodology used to model the impact of the sustainable measures on vehicle travel are provided in ‘Technical Note 01 – Application of Mode Shift’. A summary of the methodology is provided in the following sections. 5.2 DOCUMENT Methodology 5.2.1 Based on the evidence collected from the documents stated below, a matrix type approach was taken, where a high, medium or low level of mode shift was applied depending on the level of sustainable travel options available. The documents used for the evidence base are:

x Department for Transport Cycle Demonstration Towns; x Department for Transport Sustainable Towns Study; x Department for Transport WebTAG Unit 3.10.6 (Draft).

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5.2.2 The level of mode shift was applied at different levels within the trip matrices to zone types as follows:

1. New development zones – where it is seen that there is a greater opportunity to influence the mode choice patterns of residents

2. Existing internal zones within the towns

3. External zones – where only public transport options will be available for mode shift (under the assumption that walk / cycle improvements would not affect longer distance trips)

5.2.3 The mode shift factors were only applied to the car user class (matrix level 1), as the sustainable measures would not be expected to apply to LGV and HGV trips. Table 5.1 highlights the proposed level of modal shift; it should be noted that the figures in the table below represent the proposed increase in mode share for each mode (i.e. 65% represents a 65% increase in bus use).

Mode High Medium Low Cycle / Walk 25% 20% 15% Bus 65% 50% 35% TableARCHIVED 5.1: Proposed level of mode shift

5.2.4 For Saltash the following mode shift was used:

x Cycle/Walking – A list of proposed sustainable measures in terms of cycling/walking has been provided by Cornwall Council, including walking improvement schemes at Callington EVIDENCERoad, Salt Mill, Carkeel to the Tamar Valley industrial estates, a pedestrian overbridge linking the new development cells, improved walking and cycling routes from the new developments into the town centre and provision of cycle racks. An increase in pedestrian and cycle trips results in a reduction in short distance car trips. Potential barriers to increased cycling and walking are the topography of the town and severance between the proposed development sites and the rest of the town. Therefore a factor of 20% increase DOCUMENTin cycle/walking usage has been applied to both internal zones and development zones.

x Bus – The proposals for improvements include increased bus service frequency to Bodmin and Liskeard, St Columb Major, Callington and Launceston (from hourly to half-hourly). Due to the compact nature of the town, it is expected that the improved service provision will capture all zones within the model area, especially development area; therefore a factor of 50% increase in bus usage has been applied to existing trips, 65% for the new development zones.

x Rail – A half hourly all day service between Plymouth and Exeter and an upgraded Saltash Station (including parking) will be promoted to maximise travel by train. A factor of 35% increase in rail usage has been applied to certain internal zones.

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5.3 Mode Shift from Private Car

5.3.1 Table 5.2 outlines the resultant modal split from the private car with the sustainable transport strategy in place for the internal, external and development zones in Saltash.

Before Strategy After Strategy Mode Shift Internal 74% 65% 9% External 74% 70% 4% Development 74% 65% 9% Table 5.2: Mode shift from private car

5.3.2 Table 5.3 shows the growth in demand between the base year (2010) and 2030 following the implementation of the sustainable measures:

Trips (PCU) AM Peak PM Peak Base 2010 6779 6923 With Sustainable Measures Scenario 4 Future 2030 8010 7878 Growth 18% 14% ARCHIVEDScenario 5 Future 2030 7921 7771 Growth 17% 12% Table 5.3: Growth in 2030 Model with Sustainable Measures (2010-2030) 5.4 2030EVIDENCE Do Something Capacity and Delay Maps 5.4.1 Using the 2030 trip matrices developed from the above processes which incorporate the impact of the sustainable measures, capacity and delay maps have been produced for the 2030 Do Something scenario. These maps are shown in Appendix B (Figures B5 to B8), with the delay maps in Appendix C (Figures C5 to C8). 5.4.2DOCUMENT The capacity maps including the sustainable transport measures continue to identify capacity issues at the following junctions:

x A38 Carkeel Roundabout; x B3271 / New Road signalised junction; x A38 / B3271 Liskeard Road (on slip); x A38 / B3271 Liskeard Rd (right turn); x A38 / Unclassified Road connecting to A388 (Stoketon Cross) junction.

5.4.3 The capacity maps are showing congestion issues at the A38 Stoketon Cross junction in future; this is due to the high traffic flows on the A38 making turning out of the unclassified side road from the north (linking to the A388) more difficult in future. However, given as the volume of traffic making this movement is very low, this junction is not considered further.

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5.5 2030 Do Something Demand Flows

5.5.1 Appendix D shows the AM and PM traffic demand flows, comparing link flow between the base, 2030 Do Minimum and 2030 Do Something models.

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6 CAPACITY ASSESSMENTS

6.1 Overview

6.1.1 The capacity and delay maps presented in Section 5 highlight the areas of the network where capacity issues are predicted to occur in 2030. This section provides further assessment of these capacity issues, in terms of more detailed junction capacity analysis using industry standard modelling tools (ARCADY for roundabouts and LinSig for traffic signals).

6.1.2 The results of the more detailed assessments may show different performance at the junction than predicted by the SATURN model; it should be noted that the SATURN model is intended to be strategic in nature and is not designed to assess individual junctions in detail – it is therefore considered that more emphasis should be placed on the outputs of the detailed junction assessments. It should also be noted that the results reported in this section are not directly comparable with the capacity maps in the previous sections which use results taken directly from the SATURN model as an initial level assessment.

6.1.3 The assessments in Section 5 concluded that capacity issues are predicted to occur at the following junctions in 2030, with the preferred development allocations and implementation of the package of sustainable measures:

xARCHIVED A38 Carkeel Roundabout; x B3271 / New Road signalised junction; x A38 / B3271 Liskeard Road (on slip); x A38 / B3271 Liskeard Rd (right turn). 6.2 TamarEVIDENCE Bridge 6.2.1 It should be noted that alongside the development of the Town Framework for Saltash, Cornwall Council and Plymouth City Council have jointly commissioned a study to assess future use and capacity of crossings of the River Tamar. This study is being carried out by Peter Brett Associates and is currently still in progress. 6.2.2DOCUMENT The preliminary outputs of this study suggest that to 2030 there will not be a highway capacity issue with the Tamar Bridge crossing. Therefore this has not been considered further in this Technical Note.

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6.3 A38 Carkeel Roundabout

6.3.1 Table 6.1 indicates the performance of the existing layout in the base year and 2030 Do Something scenarios, in both the AM and PM peaks.

AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) Base Year A38 East 0.55 0 0 0.68 0 0 A38 Carkeel B3271 Callington Road 0.66 1 0 1.28 355 109 Rbt A38 West 0.66 1 0 0.49 1 0 A388 1.04 55 24 0.7 0 0 2030 with Sustainable Measures Scenario 4 A38 East 0.77 0 0 0.86 1 0 A38 Carkeel B3271 Callington Road 1.01 19 4 1.61 701 149 Rbt A38 West 0.78 2 1 0.66 5 2 A388 1.20 256 110 0.87 0 0 2030 with Sustainable Measures Scenario 5 A38 East 0.71 0 0 0.92 0.6 0 A38 Carkeel B3271 Callington Road 0.95 3 1 1.19 244.2 51 ARCHIVEDRbt A38 West 0.72 1.2 0 0.74 7.2 3 A388 1.21 273 117 1.23 316.2 144 Table 6.1: Carkeel Roundabout Performance

6.3.2 The results show that the existing junction is currently operating above capacity at peak times. With future development associated with both Scenarios 4 and 5, the congestion problemsEVIDENCE are exacerbated and the junction is predicted to operate significantly above capacity.

6.3.3 As detailed in Section 3.6, there is a committed scheme at the junction to provide some capacity improvements. Table 6.2 indicates the performance of this improvement layout in DOCUMENTthe 2030 Do Something scenarios, in both the AM and PM peaks. AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) 2030 with Sustainable Measures Scenario 4 A38 East 0.77 0 0 0.86 1 0 A38 Carkeel B3271 Callington Road 0.70 0 0 1.01 22 6 Rbt A38 West 0.78 2 1 0.70 7 2 A388 1.20 259 111 0.88 0 0 2030 with Sustainable Measures Scenario 5 A38 East 0.71 0 0 0.92 1 0 A38 Carkeel B3271 Callington Road 0.67 1 0 0.77 0 0 Rbt A38 West 0.72 1 0 0.76 8 3 A388 1.21 274 117 1.24 323 151 Table 6.2: Carkeel Roundabout Performance including committed Tesco scheme

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6.3.4 The results show that in 2030, the roundabout is predicted to operate above capacity in both the AM and PM peak periods. In the AM peak, significant delays are predicted on the A388 approach to the junction (from the north); in the PM peak, significant delays are predicted on the B3271 (from the south). It is therefore recommended that a further capacity improvement be considered at this junction.

6.4 B3271 / New Road Signalised junction

6.4.1 Table 6.3 indicates the performance of the existing layout in the base year and 2030 Do Something scenario, in both the AM and PM peaks.

AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) Base Year B3271 New Road 0.78 46.4 6 1.10 234.6 26 Westbound Right Turn 0.41 7.6 5 0.58 8.8 6 B3271 / New Callington Road South 0.93 69.4 11 1.05 155.2 26 Road Junction B3271 Liskeard Road 0.90 75.3 8 1.07 198.5 23 Eastbound Right Turn 0.52 6.4 5 0.33 3.3 5 Callington Road North 0.89 51.9 9 1.07 180.2 34 ARCHIVED2030 with Sustainable Measures Scenario 4 B3271 New Road 0.95 94.9 10 0.57 23.4 6 Westbound Right Turn 0.43 5.9 6 0.46 12.4 5 B3271 / New Callington Road South 0.96 88.5 12 0.96 91.3 10 Road Junction B3271 Liskeard Road 0.67 36.2 5 0.97 77.7 17 Eastbound Right Turn 0.52 8.8 4 0.27 2.6 3 EVIDENCECallington Road North 0.94 62.3 11 0.96 85.0 12 2030 with Sustainable Measures Scenario 5 B3271 New Road 0.92 77.6 9 0.60 25.1 6 Westbound Right Turn 0.43 5.8 5 0.45 11.5 5 B3271 / New Callington Road South 0.96 87.0 12 0.89 61.9 7 Road Junction B3271 Liskeard Road 0.67 36.2 5 0.93 60.5 13 Eastbound Right Turn 0.51 8.5 4 0.26 2.6 3 DOCUMENT0.98 87.6 16 0.96 83.0 12 Callington Road North Table 6.3: B3271 / New Road Signalised Junction Performance

6.4.2 The results show that the junction is currently operating above capacity, particularly in the PM peak, and will continue to do so in 2030 with either development scenario. It is therefore recommended that a capacity improvement be considered at this junction.

6.5 A38 / B3271 Liskeard Road (on slip) junction

6.5.1 Table 6.4 indicates the performance of the existing layout in the base year and 2030 Do Something scenario, in both the AM and PM peaks.

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AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) Base Year A38/B3271 A38 Eastbound 0.73 0 0 0.52 0 0 Liskeard Rd A38 Westbound 0.51 0 0 0.68 0 0 (on slip) B3271 Liskeard Road 0.7 51 1 1.15 313 4 2030 with Sustainable Measures Scenario 4 A38/B3271 A38 Eastbound 0.77 0 0 0.68 0 0 Liskeard Rd A38 Westbound 0.56 0 0 0.63 0 0 (on slip) B3271 Liskeard Road 0.86 83 2 1.68 741 12 2030 with Sustainable Measures Scenario 5 A38/B3271 A38 Eastbound 0.75 0 0 0.53 0 0 Liskeard Rd A38 Westbound 0.56 0 0 0.65 0 0 (on slip) B3271 Liskeard Road 0.57 58 1 1.59 675 10 Table 6.4: A38/B3271 Liskeard (on Slip) Junction Performance

6.5.2 The assessments show that the junction is predicted to operate above capacity in the PM peak period in either development scenario in future. It is recommended that a capacity improvement be considered at this junction.

6.6 A38ARCHIVED / B3271 Liskeard Road (Right Turn) junction

6.6.1 Table 6.5 indicates the performance of the existing layout in the base year and 2030 Do Something scenario, in both the AM and PM peaks.

AM PM EVIDENCEJunction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) Base Year A38/B3271 A38 Eastbound Right Liskeard Rd 0.67 38 1 0.85 133 1 Turn (off slip) 2030 with Sustainable Measures Scenario 4 DOCUMENTA38/B3271 A38 Eastbound Right Liskeard Rd 1.03 131 3 0.66 126 1 Turn (off slip) 2030 with Sustainable Measures Scenario 5 A38/B3271 A38 Eastbound Right Liskeard Rd 0.96 98 2 0.52 122 0 Turn (off slip) Table 6.5: A38/B3271 Liskeard (Right Turn) Junction Performance

6.6.2 The junction capacity assessments show that the junction is predicted to operate above capacity in the AM peak period for Scenario 4 and at capacity for Scenario 5 in 2030, due to the difficulty in making the right turn movement.

Over a Century of Engineering Excellence - 21 - Saltash Town Model

Technical Note 14

6.7 Summary

6.7.1 The analysis of the junction capacity assessments has concluded that capacity improvements should be considered at the following junctions:

x A38 Carkeel Roundabout; x B3271 / New Road signalised junction; x A38 / B3271 Liskeard Road (on slip); x A38 / B3271 Liskeard Road (right turn).

ARCHIVED EVIDENCE DOCUMENT

Over a Century of Engineering Excellence - 22 - Saltash Town Model

Technical Note 14

7 IMPROVEMENT SCHEMES

7.1 A38 Carkeel Roundabout

7.1.1 The junction assessments detailed in Section 6 demonstrate that congestion would be experienced at the A38 Carkeel Roundabout in 2030. Due to this, a further improvement scheme has been identified that would aim to provide additional capacity; this scheme is included in Appendix E (as Figure 1). The capacity assessment of this scheme is detailed in the following sections.

7.1.2 Table 7.1 shows the performance of the improved scheme in the 2030 Do Something scenario, in both the AM and PM peaks.

AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) 2030 with Sustainable Measures Scenario 4 A38 East 0.83 38.0 9 0.85 32.0 12 A38 Carkeel B3271 Callington Road 0.54 9.2 3 0.87 30.6 10 Rbt A38 West 0.82 33.3 10 0.87 44.4 10 A388 0.84 12.6 9 0.74 8.7 7 ARCHIVED2030 with Sustainable Measures Scenario 5 A38 East 0.84 39.7 10 0.87 35.1 13 A38 Carkeel B3271 Callington Road 0.56 10.0 4 0.91 36.7 12 Rbt A38 West 0.83 35.6 10 0.87 44.8 10 A388 0.87 15.3 10 0.60 5.8 4 TableEVIDENCE 7.1: Carkeel Roundabout Performance including Larger Scheme 7.1.3 The results show that the larger improvement scheme generally provides sufficient capacity to mitigate the impact of future development.

7.1.4 An indicative cost for this improvement is £2,304,282. A breakdown of this cost estimate is DOCUMENTprovided in Appendix F. 7.2 B3271 / New Road Signalised junction

7.2.1 The junction assessments detailed in Section 6 demonstrate that congestion would be experienced at the B3271 / New Road junction in 2030. Due to this, a further improvement scheme has been identified that would aim to provide additional capacity; this scheme is included in Appendix E (as Figure 2). The capacity assessment of this scheme is detailed in the following sections.

7.2.2 As the existing junction layout is very constrained by adjacent properties, the improvement scheme has considered rationalising the movements at the junction as opposed to providing a higher capacity junction that would require landtake from adjacent properties. The improvement therefore bans the right-turn movements from B3271 Callington Road northern and southern approaches. It is considered that alternative routes are available on the existing network to make these movements, and the volume of traffic associated with these movements is not predicted to be high.

Over a Century of Engineering Excellence - 23 - Saltash Town Model

Technical Note 14

7.2.3 Table 7.2 shows the performance of the improved scheme in the 2030 Do Something scenario, in both the AM and PM peaks.

AM PM Junction Approach Delay Queue Delay Queue V / C (sec / V / C (sec / PCU PCU PCU) PCU) 2030 with Sustainable Measures Scenario 4 B3271 New Road 0.62 16.2 3 0.89 38.3 9 Westbound Right Turn 0.55 6.2 3 0.75 8.5 7 B3271 / New Callington Road South 0.76 26.9 4 0.84 28.7 7 Road Junction B3271 Liskeard Road 0.75 20.8 5 0.44 14.1 3 Eastbound Right Turn 0.58 5.9 3 0.46 4.2 3 Callington Road North 0.64 14.7 3 0.84 26.9 8 2030 with Sustainable Measures Scenario 5 B3271 New Road 0.60 15.7 3 0.85 31.5 7 Westbound Right Turn 0.54 6.2 3 0.74 9.0 7 B3271 / New Callington Road South 0.73 25.1 4 0.82 26.8 6 Road Junction B3271 Liskeard Road 0.76 20.9 5 0.49 14.8 3 Eastbound Right Turn 0.57 5.6 3 0.42 3.8 2 Callington Road North 0.63 14.5 3 0.79 23.0 6 Table 7.2: B3271 / New Road Signalised Junction Performance including Improvement SchemeARCHIVED

7.2.4 The results show that a considerable improvement in the performance of the junction could be achieved by rationalising the movements at the junction, allowing more capacity to be provided for the remaining movements. It should be noted that this would increase traffic on someEVIDENCE other routes (due to the diverted traffic), but given that the volume of traffic that would be diverted is low, this impact is not predicted to be significant.

7.2.5 An indicative cost for this improvement is £425,952. A breakdown of this cost estimate is provided in Appendix F. 7.3 DOCUMENT A38 / B3271 Liskeard Road Junction 7.3.1 The junction assessments detailed in Section 6 demonstrate that congestion would be experienced at the A38 / B3271 Liskeard Road Junction in 2030. Due to this, a further improvement scheme has been identified that would aim to provide additional capacity; this scheme is included in Appendix E (as Figure 3). The capacity assessment of this scheme is detailed in the following sections.

7.3.2 It is considered that there are currently two capacity issues at this combined junction; firstly the A38 on slip from Saltash is of a low standard, and secondly, the A38 right turn into Liskeard Road will become more difficult in 2030 due to increased traffic volumes on the A38. Therefore, the improvement scheme has considered banning the right turn movement from the A38 into Liskeard Road, and reversing this section of highway to be used as the westbound on-slip. This would allow a higher capacity on-slip to be provided, and remove the predicted congestion for the right turn movement.

Over a Century of Engineering Excellence - 24 - Saltash Town Model

Technical Note 14

7.3.3 The impact of banning this movement would result in additional traffic at Carkeel Roundabout, where the right turn into Saltash could be made. However, given the higher capacity junction that is proposed at Carkeel Roundabout and the relatively low volumes of traffic that would be diverted, the modelling assessments suggest that this extra traffic could be accommodated by the improvement at Carkeel Roundabout.

7.3.4 An indicative cost for this improvement is £216,630. A breakdown of this cost estimate is provided in Appendix F. A cost estimate for the scheme was also produced by Cormac on behalf of Cornwall Council, who estimated that the scheme would cost £300,000.

7.4 Summary of Improvements

7.4.1 A summary of the proposed improvements at each of the above junctions is provided below.

A38 Carkeel Roundabout

7.4.2 The proposed scheme significantly modifies the existing Carkeel Roundabout, and provides partial signalisation to the roundabout. The proposed circulatory carriageway is elongated in order to create stacking space as well as widening for safe lane discipline. Both A38 approaches are realigned and widened to accommodate 3 traffic lanes at the stoplines. The A38 eastbound exit is also realigned to accommodate two lanes leaving the roundabout. The A388ARCHIVED is realigned in both directions and widened. The B3271 Callington Road is modified based on the proposed put forward by a supermarket planning application.

B3271 / New Road Signalised Junction

7.4.3 The proposed scheme takes advantage of the traffic forecasts predicted some turning movements would have low demand. As a result, the proposed scheme prohibits some turningEVIDENCE movements at the junction, but maintains the signal controlled regime. The now banned right turn movements are from Callington South to New Road and Callington North to Liskeard Road.

A38 / Liskeard Road Junction

7.4.4 The existing arrangement of the B3271 joining the A38 westbound is located at an uphill DOCUMENTgradient and without any merge taper sections for the side road traffic to accelerate in order to match the A38 mainline speed. It would therefore become progressively more difficult for the side road traffic to join the A38 in the future; which could potentially lead to a safety concern. The proposed scheme takes advantage of the improvements at Carkeel Roundabout which should negate the need for the provision of a priority right turn for the A38 eastbound. The existing connector road towards B3271 is reused but reversed in travel direction. The proposed scheme provides a lane gain style arrangement to the A38 westbound; more importantly traffic joins the A38 near the trough of the vertical alignment will have the opportunity to accelerate and merge with A38 mainline traffic.

Over a Century of Engineering Excellence - 25 - Saltash Town Model

Technical Note 14

7.5 Risks

7.5.1 It should be noted that the designs and cost estimates for the improvement schemes outlined above must be considered preliminary at this stage. There are a number of risks and assumptions made in the design and cost estimate process, including:

x Existing highways boundaries have been assumed using the boundaries shown in aerial photographs (from Google Maps); no formal land ownership boundaries have been obtained or reviewed;

x The estimates have been prepared using approximate quantities with rates derived from either analogous historic rates which have been indexed to current rates or from the Spons 2012 price book with an appropriate enhancement for overheads and profit;

x An allowance of 45% has been added in respect of risk / contingency which is to reflect the outline nature of the design at this stage. This is based on advice contained in the Highways Agency Annex 1 estimating forms for schemes at this stage of development; x The following are not included in the cost estimates: o Land costs including compensation; o Design and supervision; ARCHIVEDo Inflation; o Statutory undertakers, equipment diversions, etc.; o VAT.

7.5.2 Further assumptions regarding the cost estimate process are detailed in Appendix F. 7.5.3 SpecificEVIDENCE risks for the locations where improvements have been outlined are: x A38 Carkeel Roundabout

o Land is required from landowners to the north-west and north-east of the junction that is outside of the highway boundary; DOCUMENTo The scheme would require approval from the Highways Agency. x B3271 / New Road Signalised Junction x Some lane is required, but this is assumed to be within the highway boundary; x There would be some impact on other routes due to diverted traffic that may cause objections to the scheme. x A38 / Liskeard Road Junction x No land take is required; x The scheme would prevent the right turn movement from the west into Saltash, which may cause objections to the scheme.

Over a Century of Engineering Excellence - 26 - Saltash Town Model

Technical Note 14

8 TRANSPORT STRATEGY

8.1 Summary

8.1.1 This note has documented the strategic and detailed traffic modelling assessments that have been undertaken to assess the impact of future development proposals within Saltash on the local and strategic highway network. The modelling has included an assessment of a package of suitable transport measures aimed at encouraging sustainable travel and reducing car usage.

8.1.2 From the assessment work, the recommended measures to form part of the transport strategy are:

x Committed highway improvement schemes3: o Carkeel Roundabout and pedestrian overbridge (Phase 1). x Improved cycling and walking infrastructure: o Improved walking route on Callington Road, Salt Mill, Carkeel to the Tamar Valley Industrial Estate; o Pedestrian overbridge between new development cells; o Improvements to the Saltash Cycle network and increased cycle racks in town ARCHIVEDcentre; o Improved pedestrian / cycle links from new developments south of the A38 into town centre. x Improved bus service provision and frequency (associated with the Cornwall Bus Vision), including: o Increased bus service frequency to Bodmin, Liskeard, St Columb Major, EVIDENCECallington and Launceston (from hourly to half-hourly), with remaining to Bude every 2 hours. o Real Time Passenger Information; o Improved waiting facilities; x Improvement to rail frequency to half-hourly between Exeter and Penzance (including Saltash); DOCUMENTx Upgrade to Saltash Rail Station including parking facilities; x Travel Planning and smarter choices; x Junction improvement schemes at: o A38 Carkeel Roundabout; o B3271 / New Road Signalised junction; o A38 / B3271 Liskeard Road Junction.

8.1.3 The assessment work concludes that these measures would allow the preferred development allocations in Saltash to come forward without compromising the operation of the local and strategic highways network.

3 There may be other schemes within Saltash with committed funding but these are not necessarily being reflected in this report. For a full list of schemes in the Saltash area please refer to the Transport Strategy Map.

Over a Century of Engineering Excellence - 27 - Saltash Town Model

Technical Note 14

Appendix A – Committed Highways Schemes ARCHIVED EVIDENCE DOCUMENT

Over a Century of Engineering Excellence ARCHIVED EVIDENCE DOCUMENT

Rev Date Description By

Amendments

Project

Title

Client

Waterman Boreham Transport Planning

Regent House Hubert Road Brentwood Essex CM14 4JE

t 01277 238 100 f 01277 238 150 [email protected] www.waterman-boreham.com

Drawing Status PRELIMINARY

Project No Designed by Checked by

Drawn by Date

Scales @ A1 Computer File No work to figured dimensions only

Publisher Zone Category Number Revision Saltash Town Model

Technical Note 14

Appendix B – Network Capacity Maps

ARCHIVED EVIDENCE DOCUMENT

Over a Century of Engineering Excellence Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

20/07/2012 A1 - - - - - A2 600 3,500 15,559 - - A3 - - 1,000 7,000 - A4 82 - - - - A5 - - - - - A6 - - - - - A7 - - - - - A7 North 350 2,199 587 995 Permissions & Urban Sites 168 - Economic growth is based on 50% increase on UE Options 1,032 - ELR projections. Retail study mentiond 3 new Scenario Target 1,200 - retailers could require an additional 5700- 7700sqm

A38 A4 A2 M S

A7 North B3271 B3413 ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Four Figure SAL_B1 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S4.xlsm Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

A38 A4 A2 M S

A7 North B3271 B3413 ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Four Figure SAL_B2 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S4.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

20/07/2012 A1 - - - - - A2 - - - - - A3 - - 1,000 7,000 - A4 82 - - - - A5 - - - - - A6 - - - - - A7 600 3,500 15,559 - - A7 North 350 2,199 587 995 Permissions & Urban Sites 168 - Economic growth is based on 50% increase on UE Options 1,032 - ELR projections. Retail study mentiond 3 new Scenario Target 1,200 - retailers could require an additional 5700- 7700sqm

A38 A4

M S

A7 North B3271 B3413 ARCHIVEDA7 EP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Five Figure SAL_B3 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S5.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

A38 A4

M S

A7 North B3271 B3413 ARCHIVEDA7 EP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Five Figure SAL_B4 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S5.xlsm Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

A38 A4 A2 M S

A7 North B3271 B3413 ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Four Figure SAL_B5 Issue: 1

A38 A4 A2 M S

A7 North B3271 B3413 ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Four Figure SAL_B6 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S4.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

A38 A4

M S

A7 North B3271 B3413 ARCHIVEDA7 EP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Five Figure SAL_B7 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Capacity Maps S5.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 1,032 5,699 17,146 7,995 -

A38 A4

M S

A7 North B3271 B3413 ARCHIVEDA7 EP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the ratio of flow through a junction divided by it's capacity (RFC). < 85%

85% ≤ < 95% Plymouth A3064 95% ≤ < 105% DOCUMENT 105% ≤ B3396 Junction Capacity

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Capacity Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Five Figure SAL_B8 Issue: 1

Technical Note 14

Appendix C – Network Delay Maps ARCHIVED EVIDENCE DOCUMENT

A38 A4 A2 M S

B3271 B3413

A7 North ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Four Figure SAL_C1 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S4.xlsm Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A38 A4 A2 M S

B3271 B3413

A7 North ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Four Figure SAL_C2 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S4.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A3 A4 A38

M S

A7 North B3271 B3413

EP A7ARCHIVED A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Five Figure SAL_C3 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S5.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A3 A4 A38

M S

A7 North B3271 B3413

EP A7ARCHIVED A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Five Figure SAL_C4 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S5.xlsm Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A38 A4 A2 M S

B3271 B3413

A7 North ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Four Figure SAL_C5 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S4.xlsm Saltash - Scenario Four No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A38 A4 A2 M S

B3271 B3413

A7 North ARCHIVEDEP A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Four Figure SAL_C6 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S4.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A3 A4 A38

M S

A7 North B3271 B3413

EP A7ARCHIVED A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - AM - Scenario Five Figure SAL_C7 Issue: 1

DATE SCALE PRODUCED CHECKED APPROVED The Forum, Barnfield Road, Exeter EX1 1QR Jul-12 Not to Scale LL PG IB Tel: (01392) 229 700 Web: pbworld.com © Copyright Parsons Brinckerhoff 2012 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models - Phase 3 & 4\08_Saltash\Phase4_Forecasting\SATURN\Capacity\SALTASH Delay Capacity Maps S5.xlsm Saltash - Scenario Five No. Sqm by Use Class Urban Dwellings A B1a/b B1c/B2/B8 D / Sui Extant Permissions / UC (EP) 126 - - - - A388 Small Sites with PP 126 - - - - Urban sites 42 3,797 - - - M: Parkway/Moorlands industrail easte - Burraton road 42 1,525 - - - S: Saltash industrail estate, gilston road - 2,272 - - - Urban Extension 682 3,500 16,559 7,000 -

A3 A4 A38

M S

A7 North B3271 B3413

EP A7ARCHIVED A38 Saltash

Junction Capacity Key EVIDENCE Values equate to the turning delays (in seconds) traffic hrough a junction < 60

60 ≤ < 120 Plymouth A3064 120 ≤ < 300 DOCUMENT 300 ≤ B3396 Junction Delay

CLIENT: PROJECT DRAFT Carrick House, Cornwall Council: Pydar Street, Truro, Core Strategy Modelling - Individual Town Models TR1 1EB

TITLE Tel: (01872) 224 241 Junction Delay Web: cornwall.gov.uk Key Junctions: Saltash - 2030 - PM - Scenario Five Figure SAL_C8 Issue: 1

Technical Note 14

Appendix D – Traffic Flow Diagrams ARCHIVED EVIDENCE DOCUMENT

Over a Century of Engineering Excellence © Copyright Parsons Brinckerhoff 2012 27/07/2012 Flo 10 10 10 w Key Traff cFlow ic 2030 DM 2030 DS Base 1310 1382 1466 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models -Phase 3 &4\03_Hayle &St Ives\Phase4_Forecasting\SATURN adjusted G and M\Hayle Capacity results without Strategy_Turn V_C_Delay V4.xlsx A 38 1382 1466 1310 1034 1034 920 136 278 290 107 1056 1161 1188 89 87 Demand Traffic Flows on KeyLinks Demand TrafficFlows TITLE Saltash - Core Strategy Modelling - Individual Town Models IndividualTown Core StrategyModelling- Council: Cornwall CLIENT: P Jun-12 DATE 126 347 365 1213 1216 937 248 299 321 DOCUMENT 1488 1582 1430 ROJECT ARCHIVED EVIDENCE A Not toScale 00-A ScenarioFour AM- 2030 - 388 SCALE 1044 992 883 Saltash B3271 75 20 18 195 191 206 Figure PRODUCED 1383 1816 1865 Plymouth LL Sal_D1 1814 1902 1664 CHECKED PG Issue: 1201 1283 1358 1213 1216 1216 APPROVED 937 IB 1 491 678 719 B3396 415 429 401 138 70 58 683 671 603 Tel: (01392) 229 700 Web: pbworld.comTel: (01392) 229 700 The Fo 1220 1290 1140 rum, Barnfield Road,ExeterEX11QR A B3413 3064 477 477 553 594 A 38 2334 2113 2239 1545 1498 1545 Web: cornwall.gov.uk 322 420 458 Tel: (01872)224241 382 339 345 Carrick Hou Pydar Street, Street, Pydar TR1 1EB Truro, 563 642 552 335 390 415 se, © Copyright Parsons Brinckerhoff 2012 27/07/2012 Flo 10 10 10 w Key T afcFlow raffic 2030 DM 2030 DS Base 1218 1330 931 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models -Phase 3 &4\03_Hayle &St Ives\Phase4_Forecasting\SATURN adjusted G and M\Hayle Capacity results without Strategy_Turn V_C_Delay V4.xlsx A 38 1218 1330 931 1131 1279 1136 192 464 507 176 204 352 1398 1618 1738 Demand Traffic Flows on KeyLinks Demand TrafficFlows TITLE Saltash - Core Strategy Modelling - Individual Town Models IndividualTown Core StrategyModelling- Council: Cornwall CLIENT: P Jun-12 DATE 192 453 497 1468 1716 1807 460 533 575 DOCUMENT 1123 1232 987 ROJECT ARCHIVED EVIDENCE A Not toScale 00-A ScenarioFour AM- 2030 - 388 SCALE 517 556 452 Saltash B3271 144 198 238 186 188 Figure 9 PRODUCED 1712 1964 2067 Plymouth LL Sal_D1 1494 1598 1276 CHECKED PG Issue: 1191 1294 890 1716 1807 1807 1468 APPROVED IB 1 653 775 863 B3396 464 528 366 411 469 507 715 795 912 Tel: (01392) 229 700 Web: pbworld.comTel: (01392) 229 700 The Fo 1043 1123 949 rum, Barnfield Road,ExeterEX11QR A B3413 3064 419 419 311 345 A 38 1764 1899 1517 1307 1616 1702 Web: cornwall.gov.uk 353 361 402 Tel: (01872)224241 511 337 354 Carrick Hou Pydar Street, Street, Pydar TR1 1EB Truro, 359 366 449 672 608 632 se, © Copyright Parsons Brinckerhoff 2012 27/07/2012 Flo 10 10 10 w Key Traff cFlow ic 2030 DM 2030 DS Base 1310 1346 1354 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models -Phase 3 &4\03_Hayle &St Ives\Phase4_Forecasting\SATURN adjusted G and M\Hayle Capacity results without Strategy_Turn V_C_Delay V4.xlsx A 38 1346 1354 1310 1031 1014 920 136 289 309 121 1056 1161 1170 92 87 Demand Traffic Flows on KeyLinks Demand TrafficFlows TITLE Saltash - Core Strategy Modelling - Individual Town Models IndividualTown Core StrategyModelling- Council: Cornwall CLIENT: P Jun-12 DATE 126 391 476 1230 1217 937 248 300 317 DOCUMENT 1488 1620 1430 ROJECT ARCHIVED EVIDENCE A Not toScale 00-A Scenario Five AM- 2030 - 388 SCALE 1020 965 883 Saltash B3271 75 21 31 195 192 205 Figure PRODUCED 1383 1714 1865 Plymouth LL Sal_D3 1813 1900 1664 CHECKED PG Issue: 1201 1255 1249 1230 1217 1217 APPROVED 937 IB 1 491 576 598 B3396 403 425 401 138 75 77 724 764 603 Tel: (01392) 229 700 Web: pbworld.comTel: (01392) 229 700 The Fo 1222 1292 1140 rum, Barnfield Road,ExeterEX11QR A B3413 3064 477 477 543 574 A 38 2333 2113 2251 1545 1399 1417 Web: cornwall.gov.uk 322 406 456 Tel: (01872)224241 382 337 339 Carrick Hou Pydar Street, Street, Pydar TR1 1EB Truro, 561 634 552 335 364 392 se, © Copyright Parsons Brinckerhoff 2012 27/07/2012 Flo 10 10 10 w Key T afcFlow raffic 2030 DM 2030 DS Base 1218 1030 931 K:\TRANSPORT\HLV\285300FN-HLV Small Towns Models -Phase 3 &4\03_Hayle &St Ives\Phase4_Forecasting\SATURN adjusted G and M\Hayle Capacity results without Strategy_Turn V_C_Delay V4.xlsx A 38 1218 1030 931 1131 1279 1357 192 464 508 176 248 352 1398 1618 1891 Demand Traffic Flows on KeyLinks Demand TrafficFlows TITLE Saltash - Core Strategy Modelling - Individual Town Models IndividualTown Core StrategyModelling- Council: Cornwall CLIENT: P Jun-12 DATE 192 453 523 1468 1716 1852 460 533 562 DOCUMENT 1123 1204 987 ROJECT ARCHIVED EVIDENCE A Not toScale 00-A Scenario Five AM- 2030 - 388 SCALE 517 544 452 Saltash B3271 144 212 238 186 198 Figure 9 PRODUCED 1712 1964 2007 Plymouth LL Sal_D4 1494 1408 1276 CHECKED PG Issue: 1191 1017 890 1716 1852 1852 1468 APPROVED IB 1 653 775 732 B3396 464 566 366 411 469 507 715 778 912 Tel: (01392) 229 700 Web: pbworld.comTel: (01392) 229 700 The Fo 1043 1181 949 rum, Barnfield Road,ExeterEX11QR A B3413 419 419 3064 311 337 A 38 1764 1681 1517 1307 1616 1625 Web: cornwall.gov.uk 353 361 441 Tel: (01872)224241 511 337 353 Carrick Hou Pydar Street, Street, Pydar TR1 1EB Truro, 672 608 633 449 359 361 se, Saltash Town Model

Technical Note 14

Appendix E – Proposed Junction Improvement Schemes ARCHIVED EVIDENCE DOCUMENT

Over a Century of Engineering Excellence Project Number: Drawing Number: Revision: Login: Perkins, James 285300FN-HLV/80.3 FIGURE 1 - Plot Date: 19/10/2012 14:48:12 File Name: Z:\ACAD\Sketches\Concept_Plans.dwg Rev Date Description By Chk App

Notes:

A O

3 W 8 N 8 DOCUMENT ARCHIVED EVIDENCE Riverside Chambers, Riverside Taunton TA1 4APTaunton Street, Castle

Landrake Liskeard

A38

A O

3 W 8 N 8 Launceston Callington e:44-(0)1823-281190 Tel:

A388

A N

8 T

N 3

Plymouth Exeter W

Tamar Bridge Tamar O

3 A

Project: Client:

A N

(Toll)

8 T

A38 8 A

3 N

A A W

A A

3 3

3 8

8 E A

8 T

A W 3 N 8 8 A 3 8

Cornwall Council Cornwall E Plymouth Exeter Tamar Bridge Tamar Towns Model Towns

Saltash

8 3 (Toll)

A 8

8 3

A38

E 8 Saltash

B3271

3 A

Landrake Liskeard E

8 A38

Title: 3 T

O T A38 Preliminary Design Preliminary Carkeel Roundabout Carkeel Option 2 Option

TOWN 38W W A A38 A388

TOWN 38W A38W A 285300FN-HLV/80.3 A388 Project Number: Project Date: Designed: Drawn: PRELIMINARY DESIGN 25/05/2012 AW JRP © Copyright Parsons Brinckerhoff Parsons © Copyright Drawing Number: Drawing Scale: Figure 1 1:1000 Approved: Checked: A3 IB AW Sheet: 1 of 1 Revision: - - Revision: FIGURE ? Drawing Number: Drawing 285300FN-HLV Project Number:

ARCHIVED EVIDENCE DOCUMENT W:\CornwallCouncil Projects\Transport Planning\285300FN-HLV ModelsTown Phases 3&4\ACAD\Sketches\Concept_Plans.dwg File Name:

PRELIMINARY DESIGN

Rev Date Description By Chk App Notes: Client: Title: Drawn: JRP Checked: AW Cornwall Council Designed: AW Approved: IB New Road/Liskeard Road/ Date: 25/05/2012 Scale: 1:500 A3 Sheet: 1 of 1 Project Number: Drawing Number: Revision: Project: Callington Road Junction 26/07/2012 10:18:19 285300FN-HLV/80.3 Riverside Chambers, Towns Model Figure ? - Perkins, James Preliminary Design Castle Street, Tel: 44-(0)1823-281190 Taunton TA1 4AP Saltash © Copyright Parsons Brinckerhoff Login: Plot Date: - Revision: FIGURE ? Drawing Number: Drawing Project Number: 285300FN-HLV/80.3

ARCHIVED

Existing Junction to be Closed EVIDENCE DOCUMENT W:\CornwallCouncil Projects\Transport Planning\285300FN-HLV ModelsTown Phases 3&4\ACAD\Sketches\Concept_Plans.dwg File Name:

PRELIMINARY DESIGN

Rev Date Description By Chk App Notes: Client: Title: Drawn: JRP Checked: AW Cornwall Council Designed: AW Approved: IB A38/B3271 Liskeard Road Date: 25/05/2012 Scale: 1:1000 A3 Sheet: 1 of 1 Project Number: Drawing Number: Revision: Project: Preliminary Design 23/07/2012 10:49:41 285300FN-HLV/80.3 Riverside Chambers, Towns Model Figure ? - Perkins, James Castle Street, Tel: 44-(0)1823-281190 Taunton TA1 4AP Saltash © Copyright Parsons Brinckerhoff Login: Plot Date: Saltash Town Model

Technical Note 14

Appendix F – Proposed Junction Improvement Scheme Cost Estimates

ARCHIVED

EVIDENCE

DOCUMENT

Over a Century of Engineering Excellence Cornwall Town Road Junctions Estimates; Notes and general assumptions Preparation of estimates The estimates have been prepared using approximate quantities with rates derived from either analogous historic rates which have been indexed to current rates or from Spons 2012 price book with an appropriate enhancement for overheads and profit. The base date of the estimates is Q2 2012 and no allowance has been made for future inflation. Allowances have been made for Preliminaries and Traffic Management. Provisional sums specific to each junction have been included for works by statutory undertakers and service providers. An allowance of 45% has been added in respect of risk/contingency which is to reflect the outline nature of the design at this stage. This is based on advice contained in the Highways Agency Annex 1 estimating forms for schemes at this stage of development. The estimates cannot be used as a prediction for outcome costs and should be used for comparative purposes only. New carriageways and footways assumed to be at existing level and therefore only excavationARCHIVED of construction depth required. All excavated material to be disposed off site. No capping layer taken generally unless specifically indicated in site specific assumptions. Construction assumed to be 40 surface course, 60 binder, 200 base, 250 sub-base. Where applicableEVIDENCE capping assumed to be 350 with 150 sub-base. Generally grass seeding only included. Planting has been included for some particular sites and this is stated in the site specific assumptions. Where carriageways have been widened, it has been assumed that the existing surfaces adjacent will be planed and overlaid to a depth of 40mm (surface course only). This assumption does not apply to all sites depending on the specific conditions and the siteDOCUMENT specific assumptions will indicate what has been included. High friction surfacing for a length of 50 metres has been included on approaches to traffic signals and roundabouts. Generally new gullies with branches connected to the existing systems have been allowed for the length of widened carriageways. Additional carrier drain has been included for some sites and this is stated in the site specific assumptioons. Road restraint systems, lamp standards and signs have been included where they need to be removed to suit the proposals. This information has been obtained from Google Earth. The following are not included: Land costs including compensation. Design and supervision. Inflation VAT Cornwall Towns Frameworks Junction Improvements

Parsons Brinckerhoff drawing 285300 FN-HLV/80.3; figure 1

Carkeel roundabout, Saltash Reference % Applied Amount (£)

Site clearance 200 3,800

Fencimg 300 4,900

Road restraint systems 400 48,500

Drainage 500 162,000

Earthworks 600 356,000

Pavements 700 431,900

Kerbs, footways and paved areas 1100 68,000

Traffic signs, road markings, bollards and traffic signals 1200 152,500

Lighting columns 1300 24,000 Electrical workARCHIVED for road lighting and traffic signs 1400 3,000 Works for statutory undertakers 2700 20,000

Landscape and ecology 3000 49,700

Retaining walls 1700/2400 0

EVIDENCE 1,324,300

Preliminaries 100 10% 132,430

Traffic management 100 10% 132,430 DOCUMENT1,589,160 Contingency/risk 45% 715,122

Site specific assumptions: New road restraint system to one side of A38 east and west entries Carrier drains for new drainage Additional earthworks to form bank to east side of Callington road New road construction or plane & surface course to whole roundabout and legs Six new large traffic signs and ten new small traffic signs One new electonic traffic sign and move traffic camera Twelve new lighting columns Provisional sum of 20,000 for alterations to services Additional landscaping to bank to east side of Callington road

Total £ 2,304,282 Cornwall Towns Frameworks Junction Improvements

Parsons Brinckerhoff drawing 285300 FN-HLV/80.3 figure 2

New Rd/Lisk. Rd/Call. Rd junction, Saltash Reference % Applied Amount (£)

Site clearance 200 1,500

Fencing 300 1,100

Road restraint systems 400 0

Drainage 500 2,100

Earthworks 600 20,900

Pavements 700 54,400

Kerbs, footways and paved areas 1100 13,200

Traffic signs, road markings, bollards and traffic signals 1200 125,800

Lighting columns 1300 4,000 Electrical workARCHIVED for road lighting and traffic signs 1400 1,800 Works for statutory undertakers 2700 20,000

Landscape and ecology 3000 0

Retaining walls 1700/2400 0

EVIDENCE 244,800

Preliminaries 100 10% 24,480

Traffic management 100 10% 24,480 DOCUMENT293,760 Contingency/risk 45% 132,192

Site specific assumptions: Close boarded fencing to back of Callington Rd footway (N E side) Plane & surface course to whole junction area Three new small traffic signs Eight new illuminated bollards Two new lighting columns Provisional sum of 20,000 for alterations to services

Total £ 425,952 Cornwall Towns Frameworks Junction Improvements

Parsons Brinckerhoff drawing 285300 FN-HLV/80.3 figure 3

A38/B2371 Liskeard Rd junction, Saltash Reference % Applied Amount (£)

Site clearance 200 2,500

Fencing 300 0

Road restraint systems 400 21,400

Drainage 500 1,400

Earthworks 600 24,800

Pavements 700 24,900

Kerbs, footways and paved areas 1100 3,600

Traffic signs, road markings, bollards and traffic signals 1200 9,300

Lighting columns 1300 4,000 Electrical workARCHIVED for road lighting and traffic signs 1400 3,000 Works for statutory undertakers 2700 20,000

Landscape and ecology 3000 9,600

Retaining walls 1700/2400 0

EVIDENCE 124,500

Preliminaries 100 10% 12,450

Traffic management 100 10% 12,450 DOCUMENT149,400 Contingency/risk 45% 67,230

Site specific assumptions: Two new lengths of road restraint system to A38 and B3271 Perforate old redundant highway for grassed areas Plane & surface course to B3271 at junction of two slip roads Two new medium traffic signs and ten new small traffic signs Two new lighting columns Provisional sum of 20,000 for alterations to services

Total £ 216,630