Home / Standards / GB/T 31445-2015 GB/T 31445-2015 Active Standard for expressway traffic safety control under fog weather conditions 雾天高速公路交通安全控制条件 Standard Type GBT ICS 03.220.20 CCS R85 Status 现行 Issue Date 2015-05-15 Implementation 2015-08-01 Responsible Dept 国家标准委 Drafting Unit N/A