Home / Standards / GB/T 12758 GB/T 12758 Active General specification of signal system for urban rail transit 城市轨道交通信号系统通用技术条件 Standard Type GBT ICS 45.020 CCS Q84 Status 现行 Issue Date 2023-09-07 Implementation 2024-01-01 Responsible Dept 住房城乡建设部 Drafting Unit 住房城乡建设部