T/CITSA 36-2023 Active

Main technical content: This standard specifies the communication requirements, information format, and message content of the data communication protocol between roadside edge computing units and traffic signal control machines, applicable to data communication between roadside edge computing units and traffic signal control machines. The main technical content includes two aspects: the content sent by the signal machine to the edge computing unit and the content sent by the edge computing unit to the signal machine. The first aspect includes the communication requirements, information format, and message content of the signal machine's current cycle basic plan, real-time status of traffic lights, offline multi-period plan, static lane information, and variable lane second-level status; the second aspect includes the communication requirements, information format, and message content of signal machine mode switching, signal machine phase switching, signal machine control heartbeat, signal machine time slice plan, signal machine phase second-level control in one direction, and variable lane second-level control.