[T3OU-736]

Curious thing:

Living vicariously through images - the regional rail around New York City, known as Metro North Railroad, uses what appears to be pretty thick vinyl on its trains, whereas CalTrans in Southern California uses cloth.

Wonder why a given material was chosen.

[Gravityloss]

It never rains in Southern California?

[chrisseaton]

London uses cloth and it rains a lot there. These trains have roofs.