What is positive train control (PTC)?

Positive Train Control (PTC) refers to an advanced system designed to enhance the safety of train operations by preventing potential collisions and accidents. This technology utilizes GPS, wireless communications, and on-board computers to monitor train movements in real-time. It can automatically slow down or stop trains if certain safety thresholds are breached, such as excessive speed or if a train is approaching a track segment occupied by another train.

The necessity for PTC emerged from the need to significantly reduce accidents caused by human error and improve the overall safety of rail networks. It represents a proactive approach to rail safety management, ensuring that trains operate within safe parameters and react appropriately to hazardous situations, thereby protecting both passengers and rail infrastructure.