We are reducing speed limits to reduce nitrogen dioxide pollution.

First published:
22 June 2018
Last updated:

Over the summer we have:

  • reduced speed limits to 50mph at 5 locations
  • added average speed cameras at 4 of the 5 locations to monitor traffic speeds
  • added new signs to highlight the speed limits

This work is on the following roads:

  • A494 at Deeside
  • A483 at Wrexham
  • M4 between junctions 41 and 42 Port Talbot
  • M4 between junctions 25 and 26 Newport (50mph speed limit is controlled and enforced by existing variable speed limit system)
  • A470 between Upper Boat and Pontypridd

To find out more read our Air quality plan.

For information on air quality visit Air Quality in Wales.