Home / Standards / GB/T 34599-2017 GB/T 34599-2017 Active Ramp control system application requirements 匝道控制系统设置要求 Standard Type GBT ICS 35.100.01 CCS L79 Status 现行 Issue Date 2017-10-14 Implementation 2018-05-01 Responsible Dept 国家标准委 Drafting Unit N/A