scope:

This standard is the Base Standard for a family of related standards that address the intercommunication needs of emergency management centers and other types of centers engaged in transportation incident management. Incident in this standard includes information concerning any transportation-related event that is received by the emergency management system, including planned roadway closures and special events, whether or not the incident actually affects traffic flow and whether or not a response is required. This standard specifies common incident management message sets to allow vital data exchange for information and coordination. It provides a common mechanism for this data exchange within the defined National ITS Architecture, with latitude for local agencies to determine what level of cooperation, and hence message exchanges, best meets their requirements. This standard is independent of communication protocols used in any local implementation. It also assumes that the mechanics of communication, such as addressing, are handled by communication management, which is not addressed in this standard.

Other companion standards, herein referred to as companion volumes, will provide specific content and usage guidance for other types of centers that could participate in a local incident management system. Companion volumes dealing with the unique needs of transportation management, public safety, and hazardous materials centers have been developed as well.

The Base Standard specifies messages, data frames, and data elements (DEs) for the basic underlying communication involved in real-time interagency transportation-related incident management. Together, the Base Standard and companion volumes shall be referred to as the "IEEE 1512 Family of Standards."

Clause 6 and Clause 7 present the specified messages, data frames and data elements in ASN.1 format and in XML formats. A complete set of listing in ASN.1 and an XML schema are presented in the annexes.