I know for Shambhala they reckon there’s a risk of valleying with an empty train.
I don’t know what they do at the start of the day.
I did see them cycle an empty train once, when they were putting the 3rd train on. However with that 3rd train, they moved it into the station, did numerous tests of the restraints locking/unlocking but unusually didn’t sent it around empty and just let people (including me) on. Perfectly fine though.
At the very end of the night you also may also be asked to exit from the switch track before the station, again so they don’t have to send the train empty (and you sort of get an evac cred).
I don’t know what they do at the start of the day.
I did see them cycle an empty train once, when they were putting the 3rd train on. However with that 3rd train, they moved it into the station, did numerous tests of the restraints locking/unlocking but unusually didn’t sent it around empty and just let people (including me) on. Perfectly fine though.
At the very end of the night you also may also be asked to exit from the switch track before the station, again so they don’t have to send the train empty (and you sort of get an evac cred).