I'm from NYC, I go by XeXyz. Right now I do graffiti in the streets and on stations, but I wonder if I can visit some abandoned platforms and do graffiti there. Has anyone here ever been to subway tunnels if your city has a metro system, and how do you hide or dodge trains so you don't get hit?
These days there are cameras and increased awareness/presence to prevent you from getting to those few areas, you're better off focusing on other spots. And let's just point out the obvious too- if you're afraid or even remotely concerned about being hit by a train then creeping through dark tunnels with electrified rails is not for you- even people in the know have been electrocuted by accident or hit by a train.