What is the maximum speed allowed on a yard track?

Answer: C — 10 MPH

The maximum speed allowed on a yard track is typically established to ensure the safety of personnel and equipment, as well as to facilitate efficient movement of trains within a confined area. A speed limit of 10 MPH is often implemented because yard conditions can be unpredictable, with potential hazards such as workers on the ground, maintenance equipment, and other rail vehicles maneuvering in close proximity. This lower speed limit allows for greater control and quicker response times in case of an emergency, which is crucial for maintaining safety within the yard. In contrast, higher speeds would increase the risk of accidents and reduce the ability for train crews and workers to react to changing situations. Therefore, the specification of a 10 MPH speed limit for yard tracks effectively balances operational efficiency with safety needs.