Postby mulad » January 28th, 2016, 10:37 pm
Someone with direct knowledge of the train operating rules may comment, and it may be that the operator did the wrong thing. Still, there are trains that operate all over Europe with much more limited use of horns/bells. We have an over-reliance on warning noises here, and they're a detriment to the environment around them.
There are subtle sounds of the doors locking just before a train departs, and the circle of LEDs around the blue "door open" button will go out.
Our platforms are fairly safe if you're up on top of them, since the platform height matches the floor height, and there's a very small gap between. (There is an exception with the gap between LRVs where the couplers meet -- eliminating this gap would be a benefit of longer LRVs. Subway lines often have chains spanning this gap, and I think some services have more substantial barriers on the trains.) There is a greater risk on the ramps at the ends of the platforms, but you have to end up on the wrong side of the barrier fence. Obviously, if a person is in the guideway as a train enters a platform area, very bad things can/will happen.