Intersection directional sign at the interchange of Majura Pkwy (M23) and Tambreet St at Majura, April 2015. Image © Paul Rands

Alphanumeric routes are the newest form of route numbering in the ACT. Roads are numbered with M, A and B prefixes indicating the importance / standard of the route. At January 2016, the ACT was still transitioning to alphanumeric route numbers, with a mix of shielded and alphanumeric signs dotted along numbered routes, or pointing to them.

The first alphanumeric route numbers appeared as coverplates on the Barton Hwy (A25) around Hall and on the Kings Hwy (B52) at Kowen. It is assumed these were installed by contractors working on the NSW conversion to alphanumeric routes by accident, as they are a different style to coverplates that have been installed since. They were installed during November 2013.

The first sign installation featuring an alphanumeric route number within the ACT is located on the Monaro Hwy (signposted as B23) at Hume approaching the Isabella Dr roundabout. It was installed October 2014.

To view each gallery, click or tap on a route number or preview image below.