Local Growth Fund Business Case – A51 Congestion Relief Scheme – Tarvin Road

This scheme covers the A51 Tarvin Road between the M53/A55/A51 Vicars Cross junction and Tarvin roundabout junction with the A51 and A54. The A54 and A51 are strategic roads running east and south-east respectively linking Chester to the M6. The road is a principle route for commuter and other traffic movements to access Chester and beyond from the north-east, east and south-east, as well as Chester’s

Cheshire West and Chester Council (CWaC) have commissioned Mott MacDonald to develop an Outline Business Case (OBC) for highway capacity improvements on the A51 between Chester and Tarvin. The scope of the project has been divided into 5 key stages of activity:

  • An initial OBC scoping exercise with the Cheshire and Warrington Local Enterprise Partnership (LEP) to determine the exact scope of appraisal required to produce a proportionate case for funding;
  • Outline identification and design of option packages to improve capacity and flow along the A51 corridor from the A51/A54 roundabout in Tarvin, westward to the junction with the A55;
  • Sifting of options and potential packages based on criteria agreed with CWaC, which will include cost and alignment with policy and scheme objectives;
  • Traffic modelling of shortlisted options to assess localised performance at junctions and the impact on movement within the corridor as a whole; and a
  • WebTAG compliant economic appraisal and an assessment of wider economic benefits for the preferred package of options.

Coupled with desk top research to identify current problems and opportunities and establish the strategic case for intervention, these 5 key stages of optioneering activity will inform the Outline Business Case by identifying, through a robust and transparent process, the preferred and most viable option.

Download the full business case here.