Which term refers to the length of track between consecutive block signals?

The term that refers to the length of track between consecutive block signals is "Block." In railroad terminology, a block is a section of track that is governed by signals, which indicate whether that section is clear for a train to enter or whether it is occupied. This concept is crucial for maintaining safe distances between trains on the same track and optimizing the flow of rail traffic.

Blocks allow for the safe management of train movement by ensuring that only one train occupies a block at any given time. When a train occupies a block, the signal at the preceding block will indicate that the track is not clear for another train, thus preventing collisions and maintaining order on the Railway system.

While the other terms specify important concepts in rail operations, they do not specifically describe the length of track between block signals. "Control point," for instance, refers to locations where train movements can be managed or controlled, "Interlocking" involves a system of signals and switches in a specific arrangement to manage train movements at junctions, and "Double track" simply refers to two parallel tracks that allow for trains to travel in both directions simultaneously. None of these terms capture the specific definition that "Block" provides in terms of signaling and distances on the railway.