What do RTCs use to issue instructions regarding train movements?

RTCs, or Railroad Traffic Controllers, utilize Form M instructions to communicate specific orders and details regarding train movements. These instructions provide critical information about track availability, speeds, and any necessary operational changes. Form M instructions are essential because they ensure that train operations are conducted safely and efficiently, minimizing the risk of collisions and ensuring adherence to schedules.

Passenger updates, while important for customer information, do not provide the operational details required for train movement. Feedback from conductors can inform operations but is not the formalized method for issuing instructions. Automated systems may assist in monitoring and controlling train movements but do not replace the need for human oversight and specific instructions contained in Form M. Thus, Form M instructions remain the standard reference for RTC directives concerning train operations.