What is ATS?

Question

It has something to do with commuter trains. I believe it stands for Automatic Train Stop. What is it for?

Answer 1

Automatic Train Stop (ATS) and Automatic Train Control (ATC) are different systems, yet are similar.

ATS is usually activated when a train is operating over a switch without authority, such as against a signal.  The switch and the on-board system operate in conjunction.

ATC is a system on a locomotive that will stop the train in the event of failure to respond to alertness prompt, failure to acknowledge cab signals, incapacity of engineer, etc.

Activation of either esults in opening a valve in the air box, found right below the engineers position in the cab, called the "PC" (pneumatic control) valve.  This will return the prime mover to idle, nullify power or dynamic brake, and make a full service application of the train and engine brakes.

Different carriers use different systems, or both, or none at all.

Answer 2

An automatic train stop is a system on a train that will automatically stop a train if certain situations happened (unresponsive train operator, earthquake, disconnected rail, train running over a stop signal, etc) to prevent accidents from happening.

Answer 3

a**holes that suck!