【Haichuan Teahouse】Why do the barrier doors and subway doors stop so precisely when the subway comes to a halt?
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Why do the safety barrier doors and subway doors stop so precisely when the subway comes to a halt!
I’m a bit scared of this door; last time I almost got trapped inside it. I wasn’t too worried at the time, thinking it could be opened just like in an elevator. But once the car started moving, he struggled desperately to get in. Everyone in the whole carriage is called Lucky... As for it being this accurate, there must be some kind of limitator.
At the end of the platform, there is a line that serves as a reference for the subway driver. Go and take a look when you have time, and you’ll know.
There should be sensors or something like that as well
If high-speed trains have such routes, then subways aren’t as necessary
High-speed trains don’t have such doors, so greater tolerances are allowed~
I feel like there’s some interlock between the subway car doors and the platform doors; otherwise, how could they open and close at the same time?
Anyway, the thought of being trapped between subway doors still gives me chills; now, as soon as I sense that the doors are about to close, I don’t dare push through and prefer to wait for the next train. In reality, there have been cases where people were pulled after getting caught between doors. So safety first; I’m not sure if it’s linked now: I won’t drive if the door isn’t properly closed
It seems there’s an observer on the platform as well; the driver has to wait for instructions from the platform before starting the train