what is automatic train control

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AUTOMATIC TRAIN CONTROL. 15 Train control isthe process by which the move- ment of rail rapid transit vehicles is regulated for the purposes of safety and efficiency. The process is carried out by a combination of elements-some men,some machines攍ocated on the train,along the track,in stations,and at remote central facilities.

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The automation of train control was developed from there, using advances in traction control, which gave automatic acceleration and in braking, which could incorporate electrical control and automatic load compensation.

Continuous Automatic Train Control :- Continuous Automatic Train Control based on CBTC will consist of ?ATP (Automatic Train Protection), ATO (Automatic Train Operation) and ATS (Automatic Train Supervision) sub-systems: Automatic Train Protection (ATP) :- Automatic Train Protection is the primary function of the train control systems.

ATC (automatic train control) refers generally to the use of machines to accomplish train control functions. It does not necessarily suggest a com- pletely automated system. It can be applied to a system where certain functions or groups of func- tions are performed automatically while others are performed manually.

the train is to follow to a stop. Additional triggers, nearer the station platform, correct the generated velocity-distance profile for the effects of wheel slip and slide. The ASR system monitors the velocity-distance profile and controls the braking effort to bring the train to a stop at a predetermined point.