A sudden stop just as President Trump stepped on the stairs may have been caused by the triggering of a safety mechanism, the U.N. said. By Ashley Ahn An escalator malfunction that required President ...

Grooves on escalator steps that riders hardly pay attention to actually have a very important function that is paramount for safety. Escalators, the elevator counterparts available in nearly every ...

I understand that escalators aren't technically vehicles. I think elevators are, at least as much as a cable car or a funicular is, but escalators are more like motorized architectural elements. Still ...