asylumxl
Established Member
I think the best solution is to make the escalators too narrow for large suitcases (and perhaps some people) to fit.Many escalators and travelators have audible warnings with sensors and have done for years. An expensive projector seems overkill, and not very effective given people ignore them anyway.
I am not sure how to stop people putting dangerously large bags on an escalator which then falls down taking people with it, but these things don't seem very effective.
I expect the only effective solution is a real person, and at a busy station you could roster people so nobody has the sole job of minding the stairs/escalator!