After stopping to make a pick-up in ABS-TWC territory, at what speed may you depart the block if you entered on a clear signal?

When departing from a block after stopping to make a pick-up, the appropriate speed to proceed at is restricted speed. This speed limit is established to ensure safety in potentially uncertain conditions following a stop. In Automatic Block Signal - Track Warrant Control (ABS-TWC) territory, while a clear signal indicates that the track ahead is clear and generally allows for normal operations, stopping to make a pick-up introduces the possibility of unforeseen circumstances, such as obstacles on the track.

Traveling at restricted speed allows a train to stop within half the range of vision, which is critical in the event that something unexpected occurs on the track. This precaution helps in maintaining safety by giving the crew time to observe track conditions and respond if needed.

In contrast, departing at normal speed could pose serious risks because it might not allow the crew sufficient time or distance to react to hazards. Therefore, the safety protocols dictate that departing at restricted speed is the correct and prudent action in this scenario.