包含高级消息概念开发（AMCD）实地测试计划期间收集的所有基础移动性消息（BMM）。目前尚无专门针对BMM内容的具体标准；其中各变量的描述性定义在适用情况下源自J2735标准。所有BMM均由车载单元（OBU）生成，并最终由车辆通信中心（VCC）云服务器接收。

Contains all Basic Mobility Messages (BMMs) collected during the Advanced Messaging Concept Development (AMCD) field testing program. While there is no specific standard in existence that addresses the content of a BMM, the descriptive definitions of the variables were derived from the J2735 standard where applicable. All BMMs are generated by OBUs and ultimately received by the VCC Cloud server.