Hinksey Hill interchange

This scheme has the aim of unlocking capacity, particularly for express bus services

Latest update

The project currently remains at feasibility stage with the ongoing additional traffic modelling of the wider road network. In addition, options for minor improvements to the immediate road network are being evaluated to ensure the key benefits are achieved and to help confirm a preferred single option to progress. The current programme shows that progression to preliminary design of the preferred option will commence from March 2019.

This page will be updated with further details of the preferred option once confirmed.

Why we are doing this project?

This project provides Stage 1 of the Oxfordshire Science Transit Network, as identified in the county council’s City Deal commitment.

Stage 1 of Science Transit focuses on Hinksey Hill interchange, with the aim of unlocking capacity, particularly for express bus services.  This will enable a significantly increased service pattern (in particular services from Harwell and Didcot / Milton Park), increasing public transport use and taking traffic pressure off a congested section of the A34. 

Proposals under consideration include:

  • an extended A34 Northbound off-slip road with bus priority on the approach to the Hinksey Hill Interchange
  • widened circulatory carriageway (additional traffic lane) around the Hinksey Hill interchange, for north/east “inbound” trips, for all traffic
  • widened A423 eastbound approach to Old Abingdon Road for all traffic.

The key benefits of the scheme include:

  • reduction in total traffic delay by 65% in the am peak hour (more than 200 passenger car unit hours) and 22% in the pm peak hour (over 25pcu hours)
  • business users and transport providers. Highway travel time savings £20.8 million highway vehicle operating costs £7.7 million
  • commuting and other users. Highway travel time savings £8.4 million highway vehicle operating costs £2.7 million.

Public consultation

Work is currently being undertaken through the feasibility stage of the project to identify a preferred option. After which a public exhibition will take place; it is anticipated this will be in February 2019.