This standard is part of the IEEE 1512 Family of Standards. The purpose of that family of standards as a whole is presented in the Base Standard and will not be repeated here. The purpose of this standard is to take the real-world, available-information situation confronting the incident commander and the several involved agencies, and then support the exchange of that information among agencies, to make further information available to the incident commander and involved agencies, to best support them in managing the event. That calls for messages to communicate whatever information is available, often quite partial, among the several involved agencies, to accomplish four decision-support functions, corresponding to the five kinds of information exchange listed earlier in this clause: a. Function 1: To disseminate information about current and future traffic flows in the transportation grid, including in particular impacts of an incident and particular route information, to assist in the real-time interagency management of a transportation-related incident or event. b. Function 2: To support the management of traffic to assist in the real-time interagency management of a transportation-related incident or event, including establishing reverse links and the use of priority/preemption technologies. c. Function 3: To support the management of TMC assets and other assets, as necessary to manage traffic, to assist in the real-time interagency management of a transportation-related incident or event. d. Function 4: To support the cleanup, repair, and replacement of damaged infrastructure, treating that operation as part of another incident, or as a separate incident.