Communication Protocols Flashcards

Under FRA regulations, which communication must occur between a train crew and maintenance-of-way workers before the train passes through a work zone?

Answer: Direct radio communication confirming workers are clear of the train's path

FRA requires direct radio contact between the train crew and the work zone to confirm workers are clear before the train passes.

What FRA rule governs the use of cell phones by locomotive engineers while on duty?

Answer: Personal cell phone use is prohibited for engineers while operating a locomotive

FRA's locomotive engineer cell phone ban (49 CFR Part 220) prohibits personal cell phone use by engineers while operating, with no exceptions for hands-free devices.

A train crew is operating on a railroad using Track Warrant Control (TWC). The dispatcher verbally amends a warrant to extend the crew's limits. What must happen before the crew proceeds into the new territory?

Answer: The crew must write the amendment on the original warrant and read it back to the dispatcher

TWC amendments must be written on the original warrant and fully read back to the dispatcher before the crew may operate under the new limits.

What is the FRA significance of 'positive train identification' in communication protocols?

Answer: Confirming a train's identity and location before issuing movement authority

Positive train identification ensures the dispatcher is issuing authority to the correct train at the confirmed location before authorizing movement.

According to FRA communication regulations, what must a crew do if they receive an authority that conflicts with a signal indication?

Answer: Obey the most restrictive of the two until the conflict is resolved with the dispatcher

When an authority conflicts with a signal, crews must comply with the most restrictive indication and then clarify the conflict with the dispatcher.

What is the required action when a radio communication channel becomes saturated with multiple simultaneous transmissions during an emergency?

Answer: All non-emergency traffic must immediately clear the channel and stand by

FRA and railroad operating rules require all non-emergency transmissions to immediately cease so emergency communications can proceed unimpeded.

Under FRA regulations, what information is the dispatcher required to provide when issuing a Mandatory Directive?

Answer: Train symbol, date, time of issuance, track limits, and operating restrictions

A Mandatory Directive must include the train symbol, date, issuance time, specific track limits, and all applicable operating restrictions.