What is the purpose of a shunt strap?

The purpose of a shunt strap is to show track occupancy. This device is critical in signaling to the signaling and train control systems that a section of track is occupied, which is vital for maintaining safety within the railroad environment. When a shunt strap is used correctly, it creates an electrical connection that indicates the presence of a train or any object on the track, preventing conflicting movements into that section of track.

While repairing running rails, signaling train movement, or measuring track temperature are important tasks in railroad operations, these functions are not related to the specific role of a shunt strap. Understanding the correct application of equipment like shunt straps is essential for roadway worker safety and efficient train operations.