cross-posted from: https://ani.social/post/5822793

By takaya riku, sauce

by shia0016, s ooo uce

Point and calling

look back and front, pointing toward the platform.

Shout "All Clear"

Dispatch

most of the time, whistle is used before the train door is closed. A light emitting thing or flag is used after door is closed, signalling ok to depart.