What will a train specific TGBO be addressed to?

A train-specific TGBO (Train General Bulletin Order) is primarily addressed to the train symbol, assignment number, and schedule number. This designation is vital for effectively communicating operational instructions related to a specific train.

The train symbol uniquely identifies the train and ensures that the information is directed at the correct service. The assignment number is important for tracking the specific task or duty assigned to that train, while the schedule number informs dispatchers and crew members about the planned timetable for operations. This combination allows for clear and precise communication in the busy and often complex environment of train dispatching.

The other options include elements that, while relevant to train operations, do not specifically encompass the information necessary for a TGBO. Train type, route number, and departure time can be useful in other contexts but are not the primary focus of a TGBO. Similarly, details like crew names and time of arrival might be relevant for scheduling but are secondary to the core identifiers like train symbol or assignment number that ensure the TGBO reaches the intended train and crew without any ambiguity.