What protection is needed when using manual interlocking in a hi-rail with permission from the control operator?

Prepare for the CPKC Train Dispatcher Trainee Test with interactive flashcards and multiple-choice questions. Each query is complemented by hints and detailed explanations. Equip yourself for the test now!

When operating a hi-rail vehicle using manual interlocking with permission from the control operator, foul time is necessary to ensure safety and prevent potential conflicts with train movements. Foul time creates a designated period during which other trains are prevented from occupying the same section of the track where the hi-rail is operating. This is critical because hi-rail vehicles can be slower, and their movements might not be as predictable as those of standard trains.

Implementing foul time provides the necessary protection for both the crew operating the hi-rail and any other trains on the line, ensuring that there is a clear understanding and agreement about when it is safe to proceed. While other options may suggest varying levels of control or presence, they do not adequately address the specific need for a safety buffer on the tracks during manual interlocking operations.

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