Quote:
Originally Posted by NucksFanInVan
Not sure I agree with your logic here. To play devil's advocate for a mo:
If Evergreen were almost as grade-separated as our other Skytrain why wouldn't this grade separation (plus a good timing and traffic integration plan) let us reach a significant fraction of grade-separated capacity?
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You would still be dealing with trains that have drivers. There are certain safety concerns that prevent you from having a system where fast trains operate with high frequency. If LRT is going to be grade separated and fast, it won't be frequent like Skytrain is (one of the reasons Skytrain is popular here) and thus can't match the capacity.
But in case my point wasn't coming across, I support Skytrain on the Evergreen line wholeheartedly. I was just saying that by shoehorning in LRT into the NW corridor, you aren't actually building that much less infrastructure than Skytrain requires. So what I was saying is that the savings won't be $400 million.
My reasoning is that at grade Skytrain construction down the CPR corridor isn't that much more expensive than at grade LRT in the same area.
Throw in the cost of the tunnel and the cost of elevated sections near both ends and reconfiguring other major intersections for signal priority, and you are soooooooooo close to just having Skytrain. My statement is if you are that close, why not go all the way? In the end, LRT might save $150 million, why not spend that to have a fully automated, integrated, fast, high capacity system that in the long term is cheaper to run per passenger (by a lot).
Evergreen Line LRT would just be as close as you could get to actual Skytrain, just with LRT slapped on the name for the same cost with none of the benefits.