https://soe.dcceew.gov.au/urban/pressures/population
https://www.app.com.au/insights/bridging-gap-australias-next-infrastructure-boom
https://www.infrastructureaustralia.gov.au/sites/default/files/2019-06/future-cities-paper-web.pdf
If you are from Perth you might expect that the transportation infrastructure might be of a similar caliber in the BC part of Canada.
Fortunately, the Vancouver mentality didn't make it over to Perth, causing a lane to be removed from the 6 lane Windan_Bridge. Unfortunatly, that was the case with the Cambie_Bridge in Vancouver. Had the bridge been designed to have wide sidewalks on both sides, or a lower level bike path, a traffic lane wouldn't have been removed.
https://www.google.com/maps/place/Windan+Bridge
https://www.google.com/maps/place/Mooro-Beeloo+Bridge Lower shared-use path.
https://www.mainroads.wa.gov.au/projects-initiatives/projects-initiatives-news/tonk-221223-tonkin-gap-bridging-the-gap While the City of Vancouver & the region became obsesd with preventing bridge duplication or twinning, a key aspect was ignored. Since so many bridges in backwards BC are already narrow, they are unable to properly accommodate bus & bike lanes, or even truck lanes. A port region like Greater Vancouver really needs truck lanes, as well as bus & bike bridges. Fortunately, the narrowmindedness of BC hasn't been adopted in WA. Otherwise, this would be a 4 lane chokepoint.
https://www.mainroads.wa.gov.au/travel-information/paths-and-cycling
Perth,WA like Seattle, WA aren't so quick to take away lanes, because foot & bike paths are better integrated into the city. That's also the case with Portland, Calgary, Edmonton, Winnipeg & Montreal...
Perth has an excellent bike path system. https://uncoolcyclingclub.com/perth-swan-river-cycling-loop The Greater Vancouver region has refused to build a proper network of buss & bike bridges, even though that would help to relieve congestion.