공통 안전 요청 메시지(CSR)는 특정 차량에 안전과 관련된 정보를 요청할 때 사용된다. 이 요청에 대한 일부 응답은 KS R 1600-2에서 정의하는 기본 안전 메시지(BSM)로 구현될 수 있다.

The emergency vehicle alert message is used to broadcast warning messages to surrounding vehicles that an emergency vehicle (typically an incident responder of some type) is operating in the vicinity and that additional caution is required. The message itself is built on the original ATIS roadside alert message which in turn uses the common ITIS phrase list to both describe the event and provide advice and recommendation for travelers. The emergency vehicle alert message appends to the message some additional data elements regarding the overall type of vehicle involved and other useful data. Note that this message can be used by both private and public response vehicles, and that the relative priority of each (as well as security certificates) is determined in the application layer.

Reserved for future use.

The set of TestMessage messages are used to provide expandable messages for local and regional deployment use. This is intended to support the development new message and information exchanges of their own within the common framework of the overall V2X message set and this data dictionary. A few common data elements are provided for consistency, while the remainder of the message content can be defined by the developer using the normal regional methods. It is anticipated that over time the concepts developed in these messages will migrate into the data dictionary and message set itself.