Which of the following actions should NOT be taken by the dispatcher in a signal failure scenario?

In a signal failure scenario, it is crucial for the dispatcher to adhere to established protocols and procedures to maintain safety and operational efficiency. One of the most important actions is to avoid switching to DCS (Dispatcher Control System) Rules without proper authorization. Doing so can lead to unsafe conditions, as the dispatcher is not authorized to make significant changes to operational protocols without confirmation from a higher authority or following specific guidelines. This action could potentially override safety measures that are in place during a signal failure, putting train operations and crew safety at risk.

Other actions, such as documenting the outage, communicating with train crews, and alerting the MTO (Manager of Train Operations), are essential for maintaining safety, ensuring clarity, and managing the situation effectively. They involve proper communication and record-keeping, which are critical components of the dispatcher’s responsibilities in responding to signal failures.