GCOR - General Code of Operating Rules Track Warrant Control (TWC) Questions and Answers

Question 1

A train crew receives a track warrant that includes the instruction in Box 8: 'Hold main track at last named point.' If the last named point is a station with a siding, what does this instruction require?

Accepted Answer

The train's authority extends to but does not include the last siding switch.

Answer

The train must stop before the first siding switch at the station.

Answer

The train may proceed through the station on the main track without stopping.

Answer

The train's authority extends to and includes the last siding switch.

Question 2

Under what specific condition may a train dispatcher issue a track warrant to a train that will have overlapping limits with men or equipment?

Accepted Answer

When all trains authorized are notified and instructed to move at restricted speed within the overlapping limits.

Answer

Only if the men or equipment are also operating a train.

Answer

If the train crew verbally agrees to look out for the men and equipment.

Answer

Never, it is strictly prohibited to have overlapping limits between a train and men or equipment.

Question 3

A train has authority on a track warrant from MP 10 to MP 30. After the entire train passes MP 20, the conductor reports this to the train dispatcher. What is the status of the train's authority?

Accepted Answer

The authority is considered void up to MP 20.

Answer

The entire warrant from MP 10 to MP 30 remains in effect.

Answer

The authority is now void between MP 20 and MP 30.

Answer

A new track warrant is required to proceed to MP 30.

Question 4

Which of the following is the correct procedure for voiding a track warrant that is no longer needed or must be changed?

Accepted Answer

A new track warrant must be issued that includes the instruction 'Track Warrant No. ___ is void'.

Answer

The crew can verbally agree with the dispatcher to void the warrant.

Answer

The crew simply writes 'VOID' on their copy; no communication with the dispatcher is needed.

Answer

The warrant automatically becomes void after a fixed period of two hours.

Question 5

A train receives a track warrant with Box 7 checked: 'Not in effect until after the arrival of Train XYZ at Dover.' What action must the crew take?

Accepted Answer

Must not act on their authority until they have confirmed Train XYZ has arrived at Dover.

Answer

Proceed at restricted speed until Train XYZ is met.

Answer

Depart immediately and clear the main track before Train XYZ arrives.

Answer

Contact the dispatcher for verbal permission to depart.

Question 6

When is the mandatory verbal repetition of a track warrant by the copying employee NOT required according to GCOR?

Accepted Answer

When the track warrant is transmitted mechanically to a device.

Answer

When the employee has a certified conductor's license.

Answer

During emergency situations as declared by the railroad.

Answer

If the warrant only authorizes movement for less than one mile.