UTA TRAX Light Rail Practice Test

Interlocking signals are also called which term?

Interlocking signals Fixed signals Home signals Trackside signals

Correct Answer:

Home signals

Explanation:

Interlocking signals are the signals that control entry to a block and are protected by the signal interlocking to prevent conflicting movements. The signal that governs entry to the block—the one the train driver sees first at the entrance—is called the home signal. In interlocking systems, the home signal is the primary indicator linked to the route set by the interlocking, showing stop or proceed only when the route is safe. That’s why the term home signal fits as the label for interlocking signals in this context. The other terms don’t capture that specific role: fixed signals aren’t part of an interlocking, and trackside signals is a generic label, while interlocking signals is a broader phrase rather than the commonly used term for this entry signal.

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