Does the nonrevenue trackage on 49th St. between Baltimore Ave. and Elmwood Depot ever get used, and if so, by what? I am a relative newbie to the Philly area and only had the occasion of seeing the subway surface lines in action in person for the first time this weekend. I understand the 42nd St. tracks are used when one of the portals, either 36th or 40th must be closed and lines using one portal must be detoured to the other.
"The Erie only sells 1 way tickets on the NJ&NY because it only has a 99 year lease on the line."