What speed must a train or engine not exceed when required to move at restricted speed?

When a train or engine is required to move at restricted speed, the maximum speed that must not be exceeded is 20 MPH. Restricted speed is a key safety measure in railroad operations that allows crews to safely navigate areas where there may be potential hazards, such as signal indications, work zones, or other trains that may be on the same track.

The designation of 20 MPH is significant because it provides enough caution for operators to stop short of any obstruction while still allowing for necessary progress. This speed limit is designed to ensure the crew can react appropriately to unexpected changes in their environment while maintaining the ability to stop if visibility improves and an obstacle is encountered.

Understanding the importance of restricted speed reinforces the safety culture within the rail industry, reminding operators to prioritize caution in specific contexts that may not allow for higher speeds. This is essential for preventing accidents and ensuring the safety of both crew members and passengers.