How should a train stop upon receiving flagging signals?

When a train receives flagging signals, the proper action is to ensure a controlled and deliberate stop to mitigate any potential hazards or safety concerns. The correct practice involves turning the mode selector switch to Manual Control System (MCS) and manually stopping the train. This method allows the engineer to have complete control over the braking process and ensure that the train stops safely and effectively, reducing the chances of an accidental or uncontrolled stop, which could endanger personnel or equipment on or near the tracks.

In this context, increasing speed to clear the area does not align with safety protocols, as it could lead to dangerous situations where the train does not stop in time to address any hazards present. Waiting for further instruction without taking immediate action to stop the train can be risky, as it leaves the train in a potentially dangerous position without confirmation of safety. Coasting to a stop by shifting into neutral might not provide adequate stopping power and ensures precise control over the train, which is especially important near work zones or areas with flagging signals. Hence, the most appropriate response to flagging signals is to manually stop the train using MCS, ensuring safety and compliance with operational protocols.