track circuit - Definition & Meaning

a safety system on railways that detects the presence of a train on a section of tracka 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.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.

例句

The track circuit ensures that no other train can enter a section of track that is already occupied.
轨道电路确保没有其他列车可以进入已经被占用的轨道区段。
When a train passes over a track circuit, it sends a signal to the control center.
当火车通过轨道电路时，它会向控制中心发送信号。
Track circuits are essential for preventing collisions on busy railway lines.
轨道电路对于防止繁忙铁路线上的碰撞至关重要。