What must a dispatcher include when instructing an employee to operate a dual control switch?

When instructing an employee to operate a dual control switch, it is essential for the dispatcher to include instructions related to operating the dual control switch point derail. This is crucial because the dual control switch system combines mechanical and electrical control methods to ensure safe and proper train operations. The derail serves to prevent unintended movement onto an adjacent track, especially when a switch is in the wrong position. Providing clear instructions about operating the switch point derail helps ensure the safety of train crews and complies with operational protocols.

Including such instructions ensures that the employee is aware of all necessary steps to safely operate the switch, reducing the risk of accidents or miscommunication. The focus on safety and adherence to procedures is a critical aspect of a dispatcher’s responsibilities when managing train movements.