Communities
M40 J12-J14 –
Data Analysis, Modelling and
Scheme Development
20th March 2013
Communities
Existing Situation – M40 J14
•
•
•
•
•
Early 2011 WCC was approached by Warwickshire Police and HA
regarding queuing on the southbound slip J14
Surveys undertaken identified a significant flow from J14, turning right at
Greys Mallory roundabout and heading south on the B4100 between 07000800
Queuing at J14 is partly related to the high movement to the B4100 (i.e JLR
and AML commuters) and also to capacity constraints on the A452 Europa
Way corridor
2011/12 a detailed modelling exercise was undertaken, schemes identified
and funding secured.
WCC have now commenced with the detailed design of Europa Way
corridor improvements. Work should commence on site June/July
2013
Communities
Communities
Communities
Existing Situation – M40 J12
•
•
•
•
Late 2011 queuing issues on SB slip at J12 were
reported to WCC.
Traffic surveys and site observations identify an
early peak hour for traffic arriving at the JLR/AML
sites between 0700-0800.
Approx. 80% of employees originate from north of
the sites and access them via M40 J12 or via the
parallel B4100 route.
Commuters to the sites make up 90% of the traffic
on the B4100 and other roads in the vicinity during
0700-0800 period.
Communities
Existing Situation – M40 J12
• Significant safety risk commuters and
other traffic on M40.
• Extant planning permissions, JLR
equivalent to 2,000 jobs and AML 600
jobs.
• JLR/AML have no outstanding planning
obligations to deliver highway mitigation
related.
• 20% car share, WCC/JLR in talks with
Stagecoach.
Communities
1
Communities
What immediate action was taken?
Interim Measures
•
•
•
•
•
Temporary queue warning/ATM signs on M40.
Relocation of signs and vegetation removal at J12 to improve visibility.
Changes to lining and operation at JLR/AML roundabouts and at Gaydon
roundabout.
Recommendation to HA for anti-skid surfacing at J12.
JLR commuter coaches from Leamington.
Communities
What action was taken in the longer term?
Longer Term Measures
•
•
Completed J12-14 S-Paramics base and future year(2022) models which
include route choice between B4100 and M40.
Schemes considered included;
•
•
•
•
•
•
•
•
Signalisation of the M40 J12 slips
Link capacity improvements
Junction improvement at Gaydon roundabout
Capacity improvements at JLR and AML roundabouts
Capacity improvements at JLR and AML security gates
Lane drop on M40
Full grade separation
Schemes were assessed in terms of feasibility, buildability, modelling
performance and cost.
Communities
Modelling Information and Assumptions
•
•
•
•
2011.1 S-Paramics Microsimulation
Dynamic route choice model – this means it can identify the switch between
B4100 and M40 routes
WCC has extensive experience in this software and ARUP assisted with
model development and 3rd party audit by JMP.
Periods morning peak 0600-1000 and evening peak 1600-1900.
Communities
Metres
Communities
Communities
Scheme Costs
J14 Costs
• £2m budgeted cost. Current estimate £1.5m.
• £1m bid to LPPF to reduce burden on County borrowing.
J12 Costs
• HA - £10m budgeted (Autumn Statement 2012) estimated £6.6m.
• WCC - £6.3m.
–
–
•
£3m county funding.
£3.3m bids to RGF and LPPF submitted Feb/Mar 2013.
JLR to fund all works within their site
Communities
Risks
•HA element of the scheme now out of WCC control.
•Disruption during construction period.
•Ecological.
•Unchartered services and emergency utility works.
Communities
Further Work
J14
•
•
Tendering of construction works.
Construction commence June/July 2013 (approximately 6 months)
J12
•
•
•
•
Detailed design and tender.
Secure final element of funding.
Model traffic management options.
Commence works on site Spring/Summer 2014.
Communities
Contact Details
Alan Law
Principal Transport Planner & Modeller
alanlaw@warwickshire.gov.uk
Communities
Questions/Discussion