1. M40 J12-J14 – Data Analysis, Modelling and Scheme Development
20th March 2013

2. 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
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

5. 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
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 period.

6. 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.

7. 1

8. 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.

9. 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.

10. Modelling Information and Assumptions
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 and evening peak

12. Metres

13. 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

14. Risks HA element of the scheme now out of WCC control.
Disruption during construction period.
Ecological.
Unchartered services and emergency utility works.

15. 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.

16. Principal Transport Planner & Modeller
Contact Details
Alan Law
Principal Transport Planner & Modeller

17. Questions/Discussion