On Friday, transit workers at the Unionport Yard in Van Nest, in the Bronx, found a No. 5 train had been moved from where it had been parked in the train yard and run over an emergency stop signal ...

The governor of Maryland, Wes Moore, said at a press conference on Tuesday that thanks to the emergency signal, officials were able to stop the traffic so that no more cars would drive onto the ...

The trains were affected by several incidents between Friday night and Sunday involving the unauthorized use of an emergency stop signal, according to Polish rail authorities.

The tracks were equipped with what’s known as trip-stops, which activate a train’s emergency brakes if the train passes through a stop signal.

If you've ever traveled by train in India, you’ve likely noticed a red-colored chain hanging in every coach. This is not a random fixture—it's part of a life-saving mechanism known as the Alarm Chain ...