Pre-warning information dissemination models of different media under emergencies,Chinese Physics B

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Pre-warning information dissemination models of different media under emergencies
Chinese Physics B ( IF 1.5 ) Pub Date : 2020-09-06 , DOI: 10.1088/1674-1056/ab9c0a
Anying Chen _{1,

2} , Haoran Zhu _{1,

2} , Xiaoyong Ni _{1,

2} , Guofeng Su _{1,

2}

Affiliation

Pre-warning plays an important role in emergency handling, especially in urban areas with high population density like Beijing. Knowing the information dissemination mechanisms clearly could help us reduce losses and ensure the safety of human beings during emergencies. In this paper, we propose the models of pre-warning information dissemination via five classical media based on actual pre-warning issue processes, including television, radio, short message service (SMS), electronic screens, and online social networks. The population coverage ability and dissemination efficiency at different issue time of these five issue channels are analyzed by simulation methods, and their advantages and disadvantages are compared by radar graphs. Results show that SMS is the most appropriate way to issue long-term pre-warning for its large population coverage, but it is not suitable for issuing urgent warnings to large population because of the limitation of telecom company’s issue ability. ...

更新日期：2020-09-08

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