美国综合公共预警与警示系统（IPAWS）是美国从上到下统一的预警系统,目的是在战争、恐怖袭击、自然灾害和其它危险发生的情况下,都能够以多种渠道和方式对尽可能多的美国人发出预警和警示。其结构包括了各级政府的预警信息入口、信息汇总集成和多预警媒体发布三个部分,是一种一点多线对一面的预警和警示系统。在建设过程中显示出设计目标、预警效果、实用性等诸多方面的局限,启示我们借鉴IPAWS的经验教训,规划和建设一套适合中国国情的网、线、点的预警系统。%The aim of IPAWS（Integrated Public Alert and Warning System） is to alert and warn the American people as much as possible in situations of war,terrorist attack,natural disaster,or other hazards with multiple medias.As a ＂system of systems＂ IPAWS evolves Emergency Alert System（EAS）,National Warning System（NAWAS）,AMBER Alert,NOAA Weather Radio,Radiological Programs Chemical Stockpile and Web Alert Relay Network（WARN） and so on.IPAWS conceptual architecture includes three parts： alert and warning inlet from federal,State and local governments,alert aggregation and outlet of multiple media.Its expected objective,alert effect and practicability are limited.To learn the lessons of IPAWS,China should plan and establish a Public Alert and Warning System to suit Chinese situation.A system consisted of points,bread and wet is suggested.
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