Hah. So, the thing is, Amtrak gets priority over freight trains so long as it is running according to schedule. Amtrak essentially never runs according to schedule -- many of its trains have 0% on-time performance -- so the freight trains end up getting priority, making Amtrak even later, and so on ad nauseam. Positive feedback loop.
http://www.railwayage.com/index.php/blogs/frank-n-wilner/amt...