Information Reach:Influence of the Language Expression of Disaster Warning Message
In the context of natural disasters,as one of the key factors affecting the effectiveness of e-mergency management,the effective reach of emergency pre-warning messages is of significant value to en-able the target audience to prepare in advance and mitigate disaster losses.To investigate the impact of in-formation expression on the reach of emergency pre-warning messages,this study,based on prospect theory and reference point effect,employed an experimental research method to collect self-reported perception and behavioral data from the audience of pre-warning messages in the context of urban rainstorm disaster.The influences of the information expressions including different reference points on the effectiveness of infor-mation arrival were examined.The results indicated that information expression designed based on different reference points has different effects on the reach of disaster pre-warning messages.Specific information reference points and social comparison reference points significantly affect the audience's perception of disas-ter severity and risk,while the negative impact reference point does not have a significant effect.Further-more,cognitive load affects the reach of information that contains both comprehensive reference points and specific information reference points related to disaster prevention measures.This study advances the re-search on information reach theory and has significant implications for improving government information ex-pression,enhancing the effectiveness of disaster pre-warning messages delivery.
Language expressionInformation reachDisaster warningReference pointEmergency management