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Software-based processing made it possible to realize single-step braking or Digital ATP.

ATP and Digital ATP
 ATP with multiple-step brake controlDigital ATP
Brake Profile Diagram of Multiple-step ATP Diagram of Digital ATP
Type of information sent from the groundPermitted speed informationStopping point information
Method of train detectionVia track circuitVia track circuit
Information on preceding trainUnable to monitorAble to monitor
Ground equipment arrangementIn large-scale and concentratedSpread out in each station