[2] Many major roads in Perth[4] and in rural Western Australia[5] are not assigned a route number.
Not many routes have been added in the Perth and Peel regions since the 1990s with the exceptions including the Graham Farmer Freeway in 2000 and Mandjoogoordap Drive in 2010.
State Routes in Western Australia are designated by a white number on a blue shield.
[1] Single digit routes travel completely or partially along urban freeways or highways.
[1] Tourist Drives were introduced into Western Australia while Eric Charlton was the state government Minister for Transport in the 1990s.