城市公共交通标志 第4部分：运营工具、站（码头）和线路图形符号
Urban public transport sign - Part 4: Graphic symbols for transport means, stop and circulation line

2008-12-23

标志用图形符号表示规则 第2部分：公共信息图形符号的通用符号要素
Rules for the presentation of graphical symbols for use on signs—Part 2: General symbol elements for public information graphical symbols

2023-08-06