NES JUNCTION 12A
BALCOMBEROAD
CRAWLEY, WEST SUSSEX
ROAD SAFETY AUDIT
STAGE 1REPORT
March2016
M B Projects Ltd.
Job No. 116.060Issue: DRAFT
NES Junction 12A, Balcombe Road, Crawley, West SussexDRAFT
Stage 1 Road Safety Audit Report
CONTENTSPage No.
1INTRODUCTION2
2ITEMS RESULTING FROM THIS STAGE 1 AUDIT3
3AUDIT TEAM STATEMENT5
APPENDIX A6
APPENDIX B7
1.INTRODUCTION
1.1This report results from aStage 1Road Safety Audit carried out on the preliminary design of the proposed junction 12A on Balcombe Road as part of the North East Sector scheme in Crawley, West Sussex, at the request of the Design Organisation, PFA Consulting, Stratton Park House, Wanborough Road, Swindon.
1.2The Road Safety Audit Team membership was as follows:
Martin BrownseyBSc DipEM MCIHT CoC
Director, M.B.Projects Ltd
Ted SmithCoC
Traffic Safety Consultant
1.3The Road Safety Audit took place at the Oxted office of M.B.Projects Ltd during March 2016.The Audit was undertaken in accordance with the audit brief in PFA email dated 18th March2016. The Audit comprised an examination of the drawings and documents provided and these are listed in Appendix A.
1.4The site was visited by the Audit Team together on the morning of 22ndMarch 2016 when weather conditions were dry and sunny. Traffic conditions on Balcombe Road were light/moderate and no pedestriansand no cyclists observed using the adjacent footway and shared surface.
1.5The terms of reference for this Road Safety Audit are as described inHD19/15 Road Safety Audit. The Audit Team has examined and reported only on the road safety implications of the scheme as presented, and has not examined or verified the compliance of the designs to any other criteria.
1.6Each problem identified has been given a location reference and these are indicated on the A3 location plan in Appendix B.
1.7The proposed workscomprises introducing a new signal junction J12A into Balcombe Road just to the north of signal junction 12, and a footway/cycleway link between the two running round into the site.
1.8No details of any Departures from Standard have been provided by the Design Organisation.
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116.060
NES Junction 12A, Balcombe Road, Crawley, West SussexDRAFT
Stage 1 Road Safety Audit Report
2.ITEMS RESULTING FROM THIS STAGE 1 AUDIT
2.1GENERAL
2.1.1PROBLEM
Location: A(drawingT261/99A) – Junction 12A
Summary:Risk of hazardous surface water conditions
No surface drainage information is provided at this stage 1. Surface water passing pedestrian crossing points or present at turning/braking points can be hazardous.
RECOMMENDATIONIt is recommended that gullies may need to be installed to prevent surface water running down into the fourth arm area and across crossing points.
2.2LOCAL ALIGNMENT
2.2.1No problems identified in this category at this Stage 1.
2.3JUNCTIONS
2.3.1PROBLEM
Location: B(drawingT261/99A) – Side arm site access
Summary:Risk of rear shunts
A short distance into the site there is a T-junction with side road off to the south. Vehicles queuing back from the signals may prevent an incoming vehicle from turning right. Rear shunts or queuing back out on to Balcombe Road could result.
RECOMMENDATIONIt is recommended that a ‘Keep Clear’ marking is provided at this junction.The location of the internal junction should be reviewed to see if it can be moved further into the site.
2.3.2PROBLEM
Location: C(drawing T261/99A) – Junction 12A
Summary:Risk of confusion at right turn
The right turn from Balcombe Road northbound into the site is proposed with ‘an indicative arrow’ whereas the right turn from Balcombe Road southbound into Steers Lane is a separate phase. Drivers may not be aware of this difference such that they could make the right turn into the site assuming they had priority, and collide with a southbound vehicle. This problem is exacerbated by the 40mph speed limit compared with a more urban layout at 30mph.
RECOMMENDATIONIt is recommended that the exact operation including design and location of signal heads is checked at this stage in order to assess this problem.
2.3.3PROBLEM
Location: D(drawing T261/99A) – Steers Lane junction
Summary:Risk of inadequate space for right turning HGV
The existing traffic islands are being retained at the Steers Lane junction although now a right turn into Steers Lane needs to be accommodated. It is not clear whether a large vehicle will be able to perform this without over-running the islands.
RECOMMENDATIONIt is recommended that swept path modelling of a large vehicle is undertaken to check junction geometry, with islands being relocated if found necessary.
2.4NON-MOTOR VEHICLE PROVISION
2.4.1PROBLEM
Location: E(drawingT261/99A) – Site access road
Summary:Ensuring safe cycle routing
A shared footway/cycleway is indicated along the east side of Balcombe Road between the 2 junctions. At the east end of this route cyclists will need to be able to safely join and leave.
RECOMMENDATIONIt is recommended that the Designer reviews cycle routing in this area.
2.5SIGNS AND LIGHTING
2.5.1No proposed signage indicated at this stage 1.
3.AUDIT TEAM STATEMENT
We certify that this audit has been carried out in accordance with HD19/15.
AUDIT TEAM LEADER:
Name:MARTIN G BROWNSEY BSc DipEMMCIHT CoC
Position: Director
Organisation:MB Projects Ltd
Address: Farthings, Grants Lane, Oxted, Surrey, RH8 0RH
Signed:
Date:
AUDIT TEAM MEMBER:
Name:TED SMITHCoC
Position:Traffic Safety Consultant
Organisation:MB Projects Ltd
Address:1A The Parade, East Wittering, West Sussex
Signed:
Date:
M B Projects Ltd
Highways Consultancy
Email:
Tel: 01883 712680
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116.060
NES Junction 12A, Balcombe Road, Crawley, West SussexDRAFT
Stage 1 Road Safety Audit Report
APPENDIX A
LIST OF DRAWINGS AND DOCUMENTS EXAMINED IN THIS AUDIT
Drawing No.ScaleDescription
PFA Consulting
T261/99 A1:500Proposed Site Access
T261/1001:200Swept Path Analysis
Documents:
File Note Section 73 ApplicationPFA ConsultingMarch 2016
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