https://www.mainroads.wa.gov.au/travel-information/driving-in-wa/driving-in-perth
https://www.mainroads.wa.gov.au/technical-commercial/smartfreeways While WA take a spart aproach, backwards BC still takes a dumb approach to things.
https://www.mainroads.wa.gov.au/projects-initiatives/all-projects/metropolitan/smartfreeways/ 4 lanes each way with 2 track in the middle. You won't find that in Vancouver or anywhere in backwards BC.
https://www.mainroads.wa.gov.au/projects-initiatives/all-projects/metropolitan In contrast, the Metro Vancouver Region is a joke!