Originally Posted by Rowan

crank'n's sort of got it right. Main roads hasn't really had much to do with cycling infrastructure in WA for a while. BikeWest was absorbed three or four years ago into the department of planning... seen as a somewhat retrospective move. Anyway, you'll also find that more than 80% of bike infrastructure anywhere is managed by local government.

Soooo, the message of main roads probably ended up with someone who literally didn't know what to do with it. The complaints address crank'n supplied might get some results, but a phone call or email to the local council responsible for the path/road might get even fast results.