If your train has passed a Restricting Signal and is operating at restricted speed at night, when can you operate on the indication of the Clear signal?

Operating on the indication of a Clear signal after passing a Restricting Signal while at restricted speed is governed by specific safety protocols. The correct answer indicates that you can proceed once your leading end reaches or passes the Clear signal. This means that the train must ensure it is fully past the point where any restrictions were indicated before acting on the more favorable signal.

The rationale behind this is centered on safety. The Clear signal indicates that the track ahead is clear for normal speed. However, since the train was previously operating under a restriction, it is crucial to confirm that the train is in a position to respond appropriately to any continued signals or conditions ahead. This ensures that operators have full visibility of the signal's indication before proceeding, thereby minimizing the risk of accidents.

Choices that suggest other scenarios, like relying on a visual confirmation from the rear or waiting for prompts from the dispatcher, could lead to unsafe situations where the train may not be prepared for conditions ahead or could unnecessarily delay operations.