GB/T 20851.4-2019
ActiveElectronic toll collection－Dedicated short range communication－Part4:Equipment application
电子收费 专用短程通信 第4部分：设备应用
Application Summary AI generated
This standard specifies the application layer protocol and data exchange requirements for dedicated short-range communication (DSRC) equipment used in electronic toll collection (ETC) systems. It is applied in China to ensure interoperability between on-board units (OBUs) and roadside units (RSUs) across different manufacturers and toll road networks. The standard defines transaction procedures, data formats, and interface parameters for ETC lane operations and vehicle identification.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.