The communication system is a critical system that provides the transmission of voice, data, images, and other information services for urban rail transit production and operation management, which is essential for ensuring the safe operation of urban rail transit. It is proposed in the Opinions of the General Office of the State Council on Ensuring Safety and Security in the Operation of Urban Rail Transit (No. 13 〔2018〕 of the General Office of the State Council) to “develop technical conditions for the operational access of key facilities and equipment in urban rail transit and accelerate the standardization of key facility and equipment products, including vehicles, signaling, communication, and automatic ticketing systems.” Currently, the urban rail transit communication system faces problems such as insufficient reflection of operational requirements and lack of standardization in system functions, interfaces with other systems, and human-machine interfaces for key equipment. These problems increase operational difficulty, safety risks, and maintenance costs. They also hinder the unified scheduling of networked resources and efficient handling of emergency incidents, ultimately affecting operational safety and service assurance.

To further enhance the safety, service quality, and operational efficiency of urban rail transit communication systems, and strengthen the foundation of industry safety management, the Ministry of Transport organized urban rail transit operators from various cities, related equipment suppliers, and technical experts from research institutions to make full evaluation of the situation on the basis of extensive research and consultation on the current status of system construction and operation, as well as a review of relevant issues. After widely soliciting feedback and making multiple revisions, the Ministry of Transport formulated and issued the Technical Standards for Urban Rail Transit Communication System Operation (Trial). From the perspective of operational needs, the document outlines the functional and performance technical requirements that urban rail transit communication systems must meet.