\nT/CTS 5-2021 Data Communication Protocol between Traffic Signal Controllers and V2X Roadside Devices
T/CTS 5-2021
Basic Information
Scope
Scope: This document specifies the technical requirements of the data communication protocol between road traffic signal controllers (hereinafter referred to as traffic signal machines) and V2X roadside devices in terms of structure, physical layer, data link layer, network layer, and application layer. This protocol is applicable to data communication between traffic signal machines and V2X roadside devices. Main technical content: In the intelligent connected scenario, the information exchange between traffic signal controllers and roadside devices is an important core function. Traffic light signal information, as the most important traffic information of the intersection state, plays an indispensable role in intelligent transportation. Accurate and safe signal information transmission is the foundation and key for the realization of the intelligent connected scenario. In order to facilitate the seamless connection between different manufacturers' signal machines and V2X roadside devices and reduce device conflicts between different manufacturers, this document formulates the data communication specification between signal machines and V2X roadside devices to avoid repeated adaptation and development work during the connection process and reduce the time, manpower, and financial costs in the project implementation process.