What is the minimum speed limit for trains working between two points with overlapping limits?

The minimum speed limit for trains working between two points with overlapping limits is set to "restricted speed." This means trains must operate at a speed that allows them to stop within the available distance in case of any obstruction or circumstances that require the train to stop.

When trains are operating in areas where their movement overlaps and where there might be other trains or work crews present, safety is paramount. By adhering to a restricted speed, the train can react appropriately to any on-track signals or hazards, minimizing the risk of accidents. This practice ensures a safer operational environment, especially in areas with potential conflicts.

Other options, such as allowing full speed or stating that there is no speed limit, do not prioritize safety and could lead to dangerous situations. Similarly, half the maximum speed limit might not adequately address the specific safety concerns that arise in overlapping limits, as it does not enforce a universal rule that allows for rapid response and control.