What does the term "inter-track" imply?

The term "inter-track" refers to a connection between different lines. In the context of rail transport, inter-track connections are essential for allowing trains to switch from one track to another, facilitating the movement between different service lines. This enhances operational flexibility and efficiency, enabling trains to be rerouted as necessary to manage traffic, improve service, or allow for the maintenance of a specific track without disrupting overall operations.

Understanding inter-track is vital for coordinating schedules and maintaining safe distances between trains operating on different lines that could converge at certain junctions. The other options present different aspects of train operations but do not accurately define the concept of "inter-track."