List of road routes in the Australian Capital Territory
From Wikipedia, the free encyclopedia
Road routes in the Australian Capital Territory assist drivers navigating roads throughout the territory, or may have a second local name in addition to a primary name. The ACT previously used an older, numerical shield-based system, which was replaced by a newer, alphanumeric system in 2013. Many major roads in the ACT are not assigned a route number.
The ACT implemented the federally-issued National Routes system between 1955 and 1956, using white-and-black shields highlighting interstate links between major regional centres; some of these routes were later upgraded into National Highways using green-and-gold shields when the National Roads Act was passed in 1974. Seven Tourist routes were also allocated across the territory in early 1990, but were decommissioned by 2019.[1] The alphanumeric system, introduced in 2013 (at the same time as New South Wales), has effectively replaced the previous scheme across the territory.
Roads are described in either a west–east or north–south alignment.
Alphanumeric routes
The alphanumeric system, introduced in 2013 (at the same time as New South Wales switched to their own alphanumeric system, as they shared some route allocations), replaced the previous National Route and National Highway scheme across the territory. It consists of alphanumeric routes, a two-digit number prefixed with a letter (M, A, or B) that denotes the grade and importance of the road, displayed on signs as yellow text on a green background with a white border; the ACT is now the only jurisdiction in Australia to use a border around allocations (NSW, previously the only other state that used them, removed them in 2020).
| Route | Component roads | From | Via | To | Length | Notes |
|---|---|---|---|---|---|---|
 M23 |
ACT/NSW border | Fyshwick | 15.5 km (10 mi) | – allocated when Majura Parkway opened in 2016 – continues east along Federal Highway into NSW as  – continues south along Monaro Highway as  | ||
 A23 |
Majura | ACT/NSW border | 50 km (31 mi) | – continues east along Federal Highway as  – continues south along Monaro Highway into NSW as  | ||
 A25 |
Barton Highway | ACT/NSW border | Lyneham | 11.9 km (7 mi) | Continues north along Barton Highway into NSW as  | |
 B52 |
Symonston | Jerrabomberra | ACT/NSW border | 4.6 km (3 mi) | Continues east as  along Canberra Avenue into NSW via Queanbeyan, and back into ACT eventually via Kowen | |
| Kings Highway | ACT/NSW border | Kowen | ACT/NSW border | 7.5 km (5 mi) | – continues west as along Kings Highway into NSW via Queanbeyan, and back into ACT eventually to Fyshwick – continues east as along Kings Highway into NSW eventually to Batemans Bay |
