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M40 J12-J14 – Data Analysis, Modelling and Scheme Development

M40 J12-J14 – Data Analysis, Modelling and Scheme Development. 20th March 2013. Existing Situation – M40 J14. Early 2011 WCC was approached by Warwickshire Police and HA regarding queuing on the southbound slip J14

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M40 J12-J14 – Data Analysis, Modelling and Scheme Development

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  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 0700-0800 • 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

  3. 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.

  4. 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.

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  6. 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.

  7. 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.

  8. Modelling Information and Assumptions • 2011.1 S-ParamicsMicrosimulation • 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.

  9. Metres

  10. 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

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

  12. 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.

  13. Contact Details Alan Law Principal Transport Planner & Modeller alanlaw@warwickshire.gov.uk

  14. Questions/Discussion

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