Positive Train Control (PTC) is a safety system designed to prevent train accidents. It uses GPS, wireless radio, and computer technology to monitor train movements and ensure they operate within safe limits. PTC can automatically slow down or stop a train if it detects potential hazards, such as excessive speed or obstacles on the tracks. The implementation of PTC aims to enhance the safety of rail operations by reducing human error. It is particularly important in areas with high traffic or complex rail networks, helping to protect both passengers and freight. PTC is a key component in modernizing the railroad industry.