
Actually it seems the projects that come out of left field get built faster with less opposition IMO. Example, SFPR and the new Port Mann. Two projects we heard very little about until they were essentially ready to build it seemed!
Projects we see renders and videos of years in advance seem to go no where, example Evergreen and Vancouver Street Car, if anything this lingering gives opposition groups more time to become larger and more powerful (and more media time) before anything happens.
Also politicians get to keep using these projects as carrots for voters who do like them, or axe them for voters who dont. Seems more politica than anyhting else IMO.