Viewing a single comment thread. View all comments

sailbag36 t1_itz7v97 wrote

It’s stops and just goes the other way. The conductor gets out and goes from what was the front and is now the back, to the back which is now the front.

177

Sir-Jawn t1_itzqscb wrote

That doesn’t explain how the northbound and southbound tracks stay the same up broad street at other stops. The answer is that there is a “switch” or crossover somewhere north of NRG stop.

43

buzz8588 t1_itzf05v wrote

And also each train car has its own power

27

CatchMeWritinQWERTY t1_itzudfd wrote

Follow up question: If the back is now the front, then right is now left. How do they know which way to turn?

8

buzz8588 t1_iu0c3hn wrote

Trains don’t have steering wheels for turning. There are people at a central hub changing track switches to move trains from one track to another. They don’t call it left or right, they probably use more meaningful terms like northbound/southbound track.

20

Simon_the_Cannibal t1_iu10u78 wrote

Ah, so its the central hub people that tell the Frankford-bound El drivers to take a left go northbound instead of going straight to New Jersey. Never knew!

edit: I'm catching on!

3