(06-29-2019, 11:13 AM)KevinL Wrote:(06-29-2019, 10:55 AM)ijmorlan Wrote: I think the chime should be reserved for when the doors are closing because the driver pressed the “close” button, not for when a door is closing because there is nobody occupying the doorway.
Not possible - the chime is for safety reasons to let the visually impaired know they need to get out of the doorway. Therefore it sounds every time the door closes.
Elevator doors don’t usually have a chime. If elevator doors don’t need a chime then neither do LRT doors, when they are enabled and will re-open upon sensing an obstruction. It’s different when the driver has pressed the “close” button and the doors will not normally re-open. In the case I’m talking about nobody needs to get out of the doorway anyway.
The crucial point is that there are two kinds of “door closing”; one is just that the door happens to be closing, but will happily re-open, while the other is that the door is closing, isn’t supposed to re-open, and the vehicle will be moving as soon as the doors close. The chimes historically have been used only for the second of these, since subway trains and GO trains don’t have a “doors enabled” mode where passengers can request the door to open.
At a minimum the two modes should have two different chimes, with the “will re-open” chime being much gentler and quieter than the “definitely closing” one.