What instruction is given if the control operator cannot line a dual control switch?

In situations where a control operator is unable to line a dual control switch, the appropriate instruction is to have an employee operate the switch by hand. This procedure is essential for maintaining safe and efficient operations on the railroad. Manual operation of the switch ensures that the train can proceed as necessary, avoiding delays that could be caused by waiting for the control system to resolve the issue or attempting to reset the switch remotely.

Manual operation is critical because it allows the train to continue its journey without unnecessary stops or complications. This practice ensures that safety protocols are adhered to while also addressing the mechanical issue with the switch directly. Proper communication and adherence to procedures by the personnel involved help mitigate any potential risks associated with switching operations.

The other options, such as delaying the train until the issue is resolved, notifying the train to reverse immediately, or resetting the switch remotely, do not provide a timely or effective solution in this scenario. They could lead to unnecessary disruptions in train schedules and increase the risk of safety violations. Thus, instructing an employee to operate the switch manually is the most efficient and safe course of action in this situation.