Interpretation of Revisions to "Technical Specification for Automatic Fare Collection System of Urban Rail Transit"

［Objective］ GB/T 20907—2024 "Technical specification for automatic fare collection system of urban rail transit" was officially released on September 29, 2024, and was officially implemented in April 2025. Therefore, it is necessary to introduce the key contents of new standard to industry insiders and explain the relevant implementation considerations. ［Method］ A brief overview of project background and revision principles behind the standard revision is presented, with a focus on the interpretation of the main new content and adjustments to the core clauses. The improvements and optimizations made on the basis of the original standard are analyzed, and key points for attention during implementation are highlighted. ［Result & Conclusion］ Interpretations of the revised contents from the aspects of flattening AFC(automatic fare collection) system architecture, new ticket media, optimization of equipment technical requirements, internet ticketing, etc., as well as the accurate understanding of the standard positioning, and the explanation of matters such as coordination with relevant management policies will help practitioners better grasp the core elements of the revision and promote the high-quality development of AFC system.