Critical Communications Flashcards

Which flag color signals that workers must immediately clear the track because a train is approaching?

Answer: Red

A red flag or signal indicates an emergency stop or that the track must be immediately cleared, depending on the context within the PTS system.

A dispatcher issues a track bulletin restricting speed in a work zone. Which party is responsible for informing train crews of this restriction?

Answer: The dispatcher communicates the track bulletin to train crews through established railroad operating procedures

Dispatchers communicate track bulletins, slow orders, and other restrictions to train crews through the railroad's standard operating bulletin system.

What must a work group do before beginning any track work after an unplanned interruption (e.g., equipment breakdown, personnel change)?

Answer: Conduct a job safety briefing to re-establish on-track safety and confirm all workers understand current protection

Any significant interruption requires a safety briefing to re-confirm the method of on-track protection and ensure all workers — including any newcomers — understand the current safety status.

What does 'fouling the track' mean in PTS communications?

Answer: Any person, equipment, or material positioned close enough to be struck by a passing train

Fouling the track means being within the danger zone — the minimum clearance distance — where a passing train or its load could make contact.

Under PTS rules, when does a gang foreman's track authority expire?

Answer: When the train dispatcher calls to check in

Authority expires at the limits specified — either the time, milepost limits, or when the foreman formally releases it to the dispatcher, whichever occurs first.

If a roadway worker's radio battery fails during work and no backup is available, what is required?

Answer: Work must cease and the worker must clear the track until communications are restored

Reliable communication is a fundamental component of on-track safety; a dead radio removes a critical protective layer and requires work stoppage.

What is a 'train approach warning' in PTS terminology?

Answer: Advance notice provided to roadway workers that a train will enter or is approaching the work area

A train approach warning is advance notice given to workers — via lookout, radio, or signal device — that a train is approaching so they have time to clear the track.