I go to college every day, I take 3 trains. The last train is the 323, I'm curious as to what causes the popping noises when the train stops. It sounds like bursts of air to control pressure on the brakes but that's a guess.
Any ideas? Thanks!
I love the noises a 323 makes. It's the only nice thing about them though.
I love the noises as well. For a entirely neutral point of view on 323s ask Ivo