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Decision madeHighways· TR010019

M4 Junctions 3 to 12 Smart Motorway

A nationally significant infrastructure project in Aylesbury Vale, Bracknell, Buckinghamshire, Chiltern South Bucks, Hillingdon, Hounslow, Reading, Slough, West Berkshire, Windsor, Wokingham, Wycombe. A decision has been made. We are confirming the outcome.

Free. We'll email you when it moves stage: consultation, submission, examination and decision.

Where it is in the process

  1. Pre-application
  2. Submitted
  3. Pre-examination
  4. Examination
  5. Recommendation
  6. Decision due
  7. Decision made

The site

The outline is the boundary the promoter published. It can include cable, pipeline or road routes as well as the main site. 568 hectares inside the published boundary.

What is proposed

Works to upgrade the M4 Motorway to a Smart Motorway between Junctions 3 to 12

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