The Magical Subway Do-Si-Do
October 26, 2012 1:02 PM Subscribe
Apologies in advance for a very niche question . . . I commute to and from work on the BDFM trains in New York City. I've noticed that between the Rockefeller Center stop (47-50th St) and the Bryant Park stop (42nd St) going southbound, the express trains (BD) switch sides with the local trains (FM). In other words, looking in the direction the trains travel heading south, at 50th st, the BD trains are on your right and the FM trains are on your left, whereas at 42nd st they are reversed. I've also seen both trains leave the station at the same time heading south and somehow switch sides between the two stations. My question is, how? I could see a switch in between the stations, but again, I've seen both trains leave at the same time and arrive at the same time, so that would seem to rule a switch out. Does one go above the other one? It's such a short distance between the stations I find that hard to believe, but that's the only explanation I've come up with. Am I missing something? Is there a switch and I just missed it? Is there a place online to see maps of the actual subway tracks underground?