Skip to main content

Information relating to the average speed recorded on the M4 junction 45 to Junction 46.

First published:
5 July 2023
Last updated:


M4 traffic flow data , file type: PDF, file size: 71 KB

71 KB
If you need a more accessible version of this document please email Please tell us the format you need. If you use assistive technology please tell us what this is.