emergency data request_ud   (Planned)  

A request for additional information or a control command issued by the emergency response agency in response to an emergency request for assistance from a traveler.

hazmat spill notification   (Planned)  

This data flow is used by the on-board cargo monitoring equipment package to contact emergency response organizations when the cargo sensors detect a release of hazardous material. This information will include the vehicle location discussed above as well as identifying the carrier. The information may be provided as a response to a real-time query or proactively by the source. The query flow is not explicitly shown.