ETSI TS 103 260-2定义了农村环境中大规模交通事故（MTA）的参考情景。该场景包括对相关响应者的定义及其总体通信需求，但没有具体说明 涉及网络技术。最后，根据响应者的特性定义了响应者的拓扑模型 事件区域的处置、时间演变和移动（如有）。从代表这类紧急情况的意义上讲，该场景不是通用的，而是“典型的” 举例说明，从而作为参考，以便对所需的整体紧急情况进行评估和确定尺寸 电信各国应急响应的法规和操作程序各不相同；例如 负责整体应急管理的组织可以是警察、消防或救援组织，也可以是 为此目的的专门组织（如公民保护）或其他组织。针对这些场景定义的响应服务仅限于安全相关服务（即，非法律等安全服务） 执行）。伤亡人员和未参与救援行动的人员（如媒体）已被排除在外，因为他们 此处考虑的应急通信系统不包括通信需求，但它们的需求是 在ETSI TR 102 410[i.2]中考虑。

ETSI TS 103 260-2 defines a reference scenario for a mass-transportation accident (MTA) in a rural environment.The scenario includes definition of the responders involved and their gross communication needs without specifying the network technologies involved. Finally the topology modelling of the responders involved is defined, in terms of their disposition in the incident area, their time evolution and their movements (if any).The scenario is not generic in the sense of representing all emergencies of this type, but is intended to be a "typical" example, and thus a reference in order to allow evaluation and dimensioning of required overall emergency telecommunications.The regulations and operating procedures for emergency responses vary between countries; for example the organization responsible for the overall emergency management can be the police, the fire or rescue organization, a dedicated organization for this purpose (e.g. civil protection), or others.The response services defined for these scenarios are limited to safety-related services (i.e. not security such as law enforcement).Casualties and personnel not active in the rescue operations (e.g. the press) have been excluded, as their communications needs are not covered by the emergency communication systems considered here, but their needs are considered in ETSI TR 102 410 [i.2].