The Contribution of Highways and Transit to Congestion Relief: A Realistic View
What I gave you before was a summary of a paper, and since you can't seem to realize that, there's the link to a paper. Everything you need is there.
You have to realize that the point of rail is to give people option to commute, not to reduce traffic (because it will never accomplish that). However, since I point out the falsehoods in your argument about reducing traffic, you want to set up a straw man to make me look like I'm against rail. I'm not. I think the way that we have designed cities is stupid because it has been all cars without any attention given to rail or bikes or walking.