SAE J3186_202303

This SAE Standard provides requirements to support applications for the maneuver sharing and coordinating service (MSCS) beyond broadcast of basic safety messages (BSMs). This is to improve road safety and traffic efficiency by sharing and coordinating vehicle maneuvers via vehicle-to-everything (V2X) communications. This document lays out use case scenarios and defines vehicle-to-vehicle (V2V) application protocols, system requirements and message sets for MSCS. The defined message sets for MSCS will result in identifying new message types, data frames, and data elements for SAE J2735. This SAE Standard is the first edition of application protocol and requirements for maneuver sharing and coordinating service (MSCS). This is to improve road safety and traffic efficiency by sharing and coordinating vehicle maneuvers via V2X communications. Maneuver sharing and coordination are required for V2X entities to make safe and efficient driving decisions. To acheive these capabilities, the necessary V2X message structures, information elements, and their associated protocols are defined in this document.