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M4 Junction 18a and link road

Ends: 16 Oct 2017

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Consultation on M4 Junction 18a and link road

The emerging Joint Transport Study for the West of England has identified a range of improvements to the transport networks in the region, including the need for a new motorway junction between M4 Junction 18 and Junction 19 (Junction ‘18a’), and an associated link road to the A4174 Ring Road. The scheme would help tackle congestion problems in the north-east fringe of Bristol and help businesses operate more efficiently.

The Department for Transport (DfT) has provided funding for the feasibility study to South Gloucestershire Council. DfT has a set process for assessing whether a transport scheme should go ahead, which South Gloucestershire Council, working in partnership with Highways England (the organisation responsible for motorways), must follow.

An important part of the study process is to examine alternative route options, to assess how they meet the scheme objectives, if they are feasible, provide value for money, and would be deliverable. This is called the feasibility stage and as part of this we are working on a feasibility study.

The results of public consultation will help to inform the feasibility study report which will be published in March 2018.

We would like to hear your views on the potential concepts for the location of the new junction and link road, plus directly associated improvements to the existing transport networks.

After the consultation closes on 16 October 2017, further work will be carried out to analyse the responses. Work on the finalised feasibility study is not due to be completed until March 2018 therefore these proposals are at a very early stage and no formal decisions have been taken. Subject to feasibility, funding and consent, the junction and link road would be built from 2025.

Route options

Two route options are suggested, they are called the ‘Western’ option and ‘Eastern’ option.  More details can be found in the consultation document (link below).

A key part of the feasibility stage we are at is to test the level of public and stakeholder reaction to the route options. Therefore we would like to hear your views on the route options presented in the consultation document.

Please ensure all feedback reaches us by or on Monday 16 October 2017 when the consultation closes.

How to view the consultation material

Please click on the links below to view the consultation material:

Consultation document - this is the main document to read.  It contains background information and diagrams of the proposed routes.

Frequently Asked Questions - background information that should be read alongside the consultation document.

Study Phase 1 Report - background document that sets out how the scheme objectives were developed.

Equalities Impact Assessment - assesses the potential impacts of the project on issues related to equalities.

You can also view some of the diagrams in the consultation document in a higher resolution by clicking on the following links:

Indicative diagram of the east and west route options

A4174 ring road diagram

Constraints diagram

Diagram of route options intially considered by the feasibility study


Public exhibitions

We are holding a series of staffed public exhibitions where members of the public are invited to drop-in to view the consultation material:

  • Tuesday 5 September, 1pm to 7.30pm at Pucklechurch Community Centre, Abson Road, Pucklechurch, BS16 9RH
  • Wednesday 6 September, 6pm to 9pm at St Anne’s Church Hall, Gibbs Lane, Siston BS16 9LT
  • Monday 11 September, 4pm to 6.45pm at Westerleigh Village Hall, Shorthill Road, Westerleigh, BS37 8QN
  • Thursday 14 September, 1pm to 7.30pm at Emersons Green Village Hall, Emerson Way, Emersons Green, BS16 7AP
  • Tuesday 19 September, 4pm to 7pm at the Shire Way Community Centre, Shire Way, Yate, BS37 8YS
  • Wednesday 20 September, 12pm to 2pm at the Bristol and Bath Science Park, Dirac Crescent, Emersons Green, BS16 7FR
  • Thursday 21 September, 4pm to 7pm at the Warmley Community Centre, 20 Deanery Road, Warmley, BS15 9JB.


How to respond to the consultation

There are a number of ways that you can respond:

  • Complete our online questionnaire
  • Download and print a copy of our questionnaire, and return to us using the Freepost address below - no stamp necessary
  • Alternatively comments can be emailed to
  • Comments and paper questionnaires can be posted to (no stamp required): Freepost RTXL-YHGY-GSYS, South Gloucestershire Council, E&CS M4J18a consultation, Council Offices, Badminton Road, Yate, Bristol, BS37 5AF.

Questions can be emailed to

Consultation Documents

Consultation Summary

Consultation Summary
Name M4 Junction 18a and link road
Description Potential locations for new motorway junction between M4 Junction 18 and Junction 19 and an associated link road to the A4174 Ring Road
Dates From 21 Aug 2017 at 07:00 to 16 Oct 2017 at 23:59.
Status Open
Consultation Topic Environment, Local economy & business issues, Local highways and transportation projects, Transportation planning & policy
Geographical area Almondsbury, Bitton, Boyd Valley, Bradley Stoke Central and Stoke Lodge, Bradley Stoke North, Bradley Stoke South, Charfield, Chipping Sodbury, Cotswold Edge, Dodington, Downend, Emersons Green, Filton, Frampton Cotterell, Frenchay and Stoke Park, Hanham, Kings Chase, Ladden Brook, Longwell Green, Oldland Common, Parkwall, Patchway, Pilning and Severn Beach, Rodway, Severn, Siston, Staple Hill, Stoke Gifford, Thornbury North, Thornbury South and Alveston, Westerleigh, Winterbourne, Woodstock, Yate Central, Yate North
Marking a consultation as relevant to a particular audience indicates that it may be of special relevance to people within that group. It doesn't, however, mean that other groups wont find the consultation of interest - we welcome responses from everybody.
For example, education issues may be of particular interest to Parents & Guardians, and so will be shown to people searching the system for parenting issues, but the views of others (eg: Business, Faith Groups) are also relevant.
Target Audience All residents
Contact Details