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 ...

Riders said the escalator felt like it was in free fall. It careened forward quickly, “four, five, six times the normal speed,” one man estimated after the New Year’s Eve crash in 2007. Revelers on ...