What is the maximum speed allowed for restricted speed outside interlockings?

The maximum speed allowed for restricted speed outside interlockings is indeed 20 mph. This regulation is put in place to ensure safety in situations where train movement must be conducted with extreme caution, such as near work zones, in areas with obstructions, or when approaching a signal that indicates a stop.

At restricted speed, the train crew must be prepared to stop within the limits of the train's vision and must be able to respond to signals or conditions that may require immediate action. Setting the maximum speed at 20 mph strikes a balance between maintaining efficiency in train operations and ensuring the safety of personnel and equipment, particularly in areas where standard signaling and operating procedures may not apply.

Understanding this limit helps operators make informed decisions when managing train movements in complex or potentially hazardous environments.