Back #322
GCOR 5.4.3B
Answer: - After a crew member receives instructions from the employee in charge. - When the leading wheels of movement are four miles beyond the yellow-red flag, and the train dispatcher verifies that no track bulletin or track warrant protecting men or equipment is in effect at that location.
Feedback:- If no red flag is displayed and no instructions have been provided by the employee in charge of the yellow-red flag, move at restricted speed. - Increase speed only after a crew member receives instructions from the employee in charge, or the leading wheels of movement are four miles beyond the yellow-red flag, and the train dispatcher verifies that no track bulletin or track warrant protecting men or equipment is in effect at that location. - Some Form Bs can be several miles long. Always err on the side of safety.