为解决城市轨道交通线网综合应急指挥系统在设计建设阶段功能定位不明确、引入数据不充分的问题，通过问卷调查、专家咨询等方法梳理了各地线网综合应急指挥系统在多源信息集成方面的短板和不足。在此基础上，从综合应急系统需要的各类多源信息出发，提出了一种考虑线网应急指挥决策者（Decision Makers, DM）、线网调度人员（Dispatching Personnel, DP）、现场应急救援人员（Rescue Workers, RW）和乘客（Rail Passengers, RP）四种角色需求的综合应急系统功能确定方法。结果表明，线网综合应急指挥系统需要的多源信息主要包括客流信息、行车信息、设施设备信息、视频类信息、生产类信息和外部信息共计六大类。这些多源信息支撑线网综合应急指挥系统实现对突发事件的监测预警、应急处置时的辅助决策、应急资源的管理和调用、对外信息动态发布四个方面的主要功能，方可满足DM、DP、RW、RP各角色应急处置城市轨道交通突发事件的需要。

To solve the issues of unclear functional positioning and insufficient data introduction in the design and construction stage of the comprehensive emergency command systems for urban rail transit networks, the shortcomings of the existing comprehensive emergency command system in integrating multi-source information were identified through methods such as questionnaire surveys and expert consultations. On this basis, a comprehensive emergency system functional research method considering requirements of the four roles namely decision makers (DM), dispatching personnel (DP), on-site emergency rescue workers (RW), and rail passengers (RP) was proposed based on the various multi-source information required by the comprehensive emergency system.The results indicate that the multi-source information required by the integrated emergency command system of the line network mainly includes six categories: passenger flow information, driving information, facility and equipment information, video information, production information, and external information. These multi-source information support network integrated emergency command systems to achieve four main functions: monitoring and warning of emergencies, auxiliary decision-making during emergency response, management and deployment of emergency resources, and dynamic release of external information, to meet the emergency response needs of various roles such as DM, DP, RW, and RP in urban rail transit emergencies.