Skip to main content

This guidance will help you use the 20mph speed limit exceptions to the default road speed data map.

Read details on this page

First published:
8 November 2022
Last updated:


Roads affected by changes to the speed limit on restricted roads: user guide , file type: PDF, file size: 561 KB

561 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.


Optimising your experience of DataMapWales

For the best user experience you should use a computer, laptop or tablet with one of the following internet browsers:

  • Microsoft Edge
  • Google Chrome
  • Apple Safari (only available on Apple products): Safari does not allow for full-screen map viewing.

Users are reminded to always keep operating systems, browsers and applications up to date.

You can enlarge the map canvas by using your browser’s zoom settings.

Please be aware DataMapWales uses PDF as its output format for printing. The local settings on your device will determine how PDFs are handled.