To what end? So that we minimize impact on driving and induce more of it?
Do you really think that auto demand is induced when a train track is separated from vehicles? I'd argue a grade separated system actually would attract more transit users! (Something, I hearedtly want to see)
All one has to do is look at the differences between Vancouver and Portland and their respective ridership percentage numbers.
Also, grade separation is about different traffic systems working in simpatico, to avoid conflict. This idea of 'well, just take the lrt' is too simplistic. It doesn't work like that. That's not to say I don't support mass rail transit. I do. But build it with at least more compromise, for goodness sake.
The city should have at least grade separated at key intersections. The VLW will become a major tension point at 109th and 104, for example. So, what are people heading N/S supposed to do? Take the train? But what if they're going to places where VL doesn't go?
Low floor service does have a case in Edmonton (and even places like Vancouver). Not as being built, but instead as a CENTRAL neighborhood connector. Run the trains up and down Jasper and Whyte (with five-section trains that can QUICKLY pass through intersections, due to shorter lengths) and CONNECT it to higher speed services. Right now, it's trying to be two things in one, which will be a recipe for future disaster!
And if the city really wants 50% of future trips to be outside the private auto, then the current model won't have enough capacity to meet such a demand.
To bring it full circle, the intersection cliusterf%$&@ at University, at 51 ave, at 111/ Kingsway and 82/83rd and 75th/ Roper, are ALL examples why I have no trust in what's being built. As 'yeggator' noted above, POLTICAL capital goes a long way.