Work areas shall be carefully inspected after each day to ensure nothing is left on or about the tracks. Red means 'immediate danger' and trains must stop. Flares shall only be used in emergencies. Train schedules do not assure safety. Passenger trains are often off schedule.
Freight trains have no schedules, and move 'anyplace, anytime'.
Railroad equipment is not always heard, especially if there is other noise. A coasting or slow moving train may not give adequate warning. Crews shall conduct brief daily tailgate safety meetings to review special job features, traffic considerations, and appropriate safety precautions.