Both the Green Party of BC and the Democratic Reform BC parties have spelled out alternatives to the government's Gateway Project. The Green Party's is at http://www.greenthink.net/, and DRBC's is at http://www.drbc.ca/download/DRBC-Gateway.pdf.
Both proposals call for revival of light rail transit east of Surrey. The DRBC proposal is more specific about this and other transit improvements. It also contains a novel proposal for a rail and truck bridge in the Port Mann vicinity. This deserves a lot more public scrutiny; the Fraser River rail bridge (next to the Patullo Bridge connecting New Westminster and Surrey) is 100 years old, and needs to be replaced soon. (Yes, there are safety concerns.) This is going to be an expensive project.
In the tradition of holism, the Green Party proposal also addresses the effort by the provincial government to pave over Eagleridge Bluffs and the Larson Creek wetlands, which the Green Party opposes.
Neither of these parties are currently represented in the Legislative Assembly. This is yet another example of why this should change; opening up the Legislative Assembly to more voices will ultimately give us better government.
A related article that I wrote: Eagleridge Bluffs and Olympic sustainability