本书基于以行业为依托的办学标准，贯彻落实《国家职业教育改革实施方案》中对于教材改革提出的要求，根据通信号技术在城市轨道交通中的具体应用情况，结合核心岗位工作过程，对接教育部《高等职业学校城市轨道交通通信信号技术专业教学标准》以及人力资源和社会保障部、交通运输部联合颁布的《轨道交通信号工国家职业技能标准》，按照项目-任务-活动的设计思路进行编写。 本书共设计8个教学项目，27个教学任务，活页式装订，并配套立体化数字教学资源（视频、微课、课件、课程标准、课程教案、习题答案），结合岗课赛证进行要求进行内容组织，是理想的职业教育教材，也可供从业人员学习参考。

作者从2012年开始，一直长期从事城市轨道交通通信信号专业的课程教学，负责专业的人才培养方案的制定工作，熟悉高职学院城市轨道交通通信信号专业的课程体系，对该专业的城市轨道交通信号课程有深层次的认知及丰富的教学经验，同时具备丰富的现场工作经验，近年来，一直有相关专业论文发表经验。

项目 1 认知城市轨道交通信号 ············································································ 1 任务 1.1 认知城市轨道交通信号系统 ······························································ 3 任务 1.2 信号基础设备概述 ········································································· 18 任务 1.3 认识联锁设备 ··············································································· 22项目 2 信号继电器维护 ····················································································· 39 任务 2.1 认识继电器 ·················································································· 41 任务 2.2 安全型继电器 ··············································································· 49 任务 2.3 继电器的应用 ··············································································· 60项目 3 信号机维护 ··························································································· 73 任务 3.1 认识信号机 ·················································································· 75 任务 3.2 正线和车辆段信号 ········································································· 82 任务 3.3 色灯信号机 ·················································································· 89项目 4 转辙机维护 ························································································· 103 任务 4.1 认识道岔 ··················································································· 105 任务 4.2 认识转辙机 ················································································ 108 任务 4.3 ZD6 系列电动转辙机 ····································································· 111 任务 4.4 ZD（J）9 系列电动转辙机 ····························································· 124 任务 4.5 S700K 型电动转辙机 ···································································· 132项目 5 轨道电路维护 ······················································································ 149 任务 5.1 认识轨道电路 ············································································· 151 任务 5.2 50 Hz 工频交流轨道电路 ······························································· 157 任务 5.3 数字轨道电路 ············································································· 161项目 6 计轴设备维护 ······················································································ 168 任务 6.1 认识计轴设备 ············································································· 170 任务 6.2 AzLM 计轴设备 ·········································································· 178 任务 6.3 TAZ IIS295 型计轴设备 ································································ 180项目 7 查询应答器维护 ··················································································· 187 任务 7.1 认识查询应答器 ··········································································· 189 任务 7.2 查询应答器的原理及分类 ······························································· 194项目 8 信号数据通信设备维护 ·········································································· 206 任务 8.1 感应环线 ···················································································· 208 任务 8.2 漏泄电缆 ···················································································· 209 任务 8.3 裂缝波导管 ················································································· 212 任务 8.4 轨旁无线接入 AP 设备 ·································································· 214 任务 8.5 电缆与光缆 ················································································· 216附录 A 城轨常用信号中英文对照 ······································································ 228附录 B 实训任务记录单与实训考核评价表 ·························································· 230参考文献 ······································································································· 232