What should a Dispatcher do if the wayside part of the PTC system is not working?

When a Dispatcher discovers that the wayside component of the Positive Train Control (PTC) system is not functioning, the appropriate course of action is to issue a Form D line 13 or provide verbal instructions. This protocol is essential because it allows the Dispatcher to communicate specific rules or restrictions to trains operating in the affected area safely.

Form D line 13 is typically used to impose temporary restrictions on train movements until the issues with the PTC system can be resolved. By doing so, the Dispatcher ensures that trains can still operate but under monitored and controlled conditions, mitigating risks associated with the failure of the PTC system. In contrast, allowing trains to proceed without restrictions would compromise safety and could lead to accidents. Stopping all operations or contacting mechanical teams would not provide an immediate solution, and issuing proper instructions ensures that operations can continue in a manner that prioritizes safety.