Originally Posted by nname
But really, I doubt the Evergreen Line would create much problem for the busy section during peak hours. There is still the WCE, and it would still be the preferred choice for people to get Downtown or UBC (it would be crazy to take the SkyTrain+99 when WCE+44 can save you more than 30min).
I wouldn't underestimate the power of Evergreen to take passengers away from WCE. It will be cheaper and more frequent. While there will be many who continue to use the WCE, unless the frequency is increased and they add more trains, it won't have the power to stand up to the EG line.
Many transfer once they get downtown to SkyTrain so the prospect of saving $80 / month for more convenience could be a pretty strong one for many.
If you're on a fixed schedule, the case for the WCE are pretty compelling, but I can still see quite a few switching to EG even for trips that go downtown.