track circuit
1 of 1noun/ˈtræk ˈsɝkɪt/
Forms:track circuits
1
a safety system on railways that detects the presence of a train on a section of track
A track circuit is an electrical system used to detect the presence of trains on a railway track. It works by sending an electrical current through the track, and when a train passes over, it completes the circuit, signaling that the track is occupied. This information is then used to control signals and ensure that trains do not travel on the same track at the same time, preventing collisions. Track circuits are commonly used in modern signaling systems to improve safety and manage train traffic efficiently, especially in busy or complex railway networks.
- The track circuit ensures that no other train can enter a section of track that is already occupied.
- When a train passes over a track circuit, it sends a signal to the control center.
- Track circuits are essential for preventing collisions on busy railway lines.
- Engineers regularly check the track circuit to make sure it is working correctly.
- Modern track circuits can detect even the smallest metal objects on the tracks.