Home / Standards / GB/T 42056-2022 GB/T 42056-2022 Active Specifications for high accuracy expression of route and facility elements of electronic highway map 电子公路图路线及沿线设施要素高精度表达规范 Standard Type GBT ICS 07.040 CCS A75 Status 现行 Issue Date 2022-10-14 Implementation 2023-02-01 Responsible Dept 交通运输部 Drafting Unit N/A