Comment Re:Chapel Hill/ Carrboro North Carolina (Score 1) 654
It's not easy to add cars because you'd have to extend existing platforms to accommodate longer trains, which is usually expensive and time consuming.
It IS possible to move between cars once you're on the train, you know, and from my experience with taking the train to and from NYC, some people seem willing to walk the entire length of the train in search of a seat that doesn't have anyone sitting next to them.
There's even two stops on the line I take where the platform isn't long enough, and there's an announcement explaining that long in advance in addition to the warning being on the schedule itself. At one station the last two cars do not platform, at the other ONLY the last two cars platform.
Not to say there isn't an upper limit to the number of cars you can have, but you can easily have like six cars more than the platform can handle assuming there's another room otherwise. Walking three cars isn't terribly difficult and doesn't take a lot of time.
=Smidge=