J2735

J2735 refers to a standard developed by SAE International concerning the message sets used for Dedicated Short-Range Communications (DSRC) in automotive applications. This standard defines the structure and content of various messages that vehicles can broadcast and receive to communicate with each other (V2V) and with roadside infrastructure (V2I). These messages are crucial for enabling intelligent transportation systems (ITS) and enhancing road safety.

The J2735 standard specifies a range of data elements, including vehicle position, speed, heading, and brake status. It also defines messages related to traffic signal phase and timing (SPaT), route information, and emergency vehicle approaching warnings. The purpose of this standardization is to ensure interoperability between different vehicle manufacturers and infrastructure providers, allowing for seamless communication and the widespread adoption of DSRC-based safety applications.

By providing a common language for vehicle-to-vehicle and vehicle-to-infrastructure communication, J2735 plays a vital role in the development and deployment of advanced driver-assistance systems (ADAS) and future autonomous driving technologies. The standard is periodically updated to incorporate new requirements and advancements in communication technology.