Evaluation of societal trust on multi-hazard early warning (MHEW) mechanism: Sri Lankan context

Ishani Shehara Pitigala Liyana Arachchi, Chandana Siriwardana, Dilanthi Amaratunga, Richard Haigh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Purpose: It is significant to assess the societal trust toward the new advancements in multi-hazard early warnings (MHEW) with the focus on disaster risk reduction (DRR). Based on this, the purpose of this paper is to examine the extent of societal trust behavior along with the parameters such as mode of communication and institutions of issuing early warnings (EWs). Design/methodology/approach: A field questionnaire survey was conducted to identify the extent of societal trust. This was conducted in ten selected Grama Niladari divisions in Sri Lanka based on a developed hazard matrix. The fuzzy logic approach was applied to examine the trust level of collected 323 responses obtained through this. The analysis was done based on the responses on mobile-based platforms in EW and the credibility level of the warnings received through different institutions. Findings: The analyzed survey responses indicated that society has a higher extent of trust toward the EWs disseminated through mobile-based platforms. Moreover, these represent a strong positive correlation among the societal trust level and the level of importance of EW dissemination through mobile-based platforms. Further, in terms of trusted stakeholders in issuing EW alerts, Disaster Management Center, Sri Lanka Police and Media ranked the highest in the Sri Lankan context. Overall, findings were visually mapped through the causal loop diagrams (CLDs). Practical implications: In enhancing the effectiveness of the existing MHEW mechanism, the policy implications could be done, based on the results obtained from this research study. These could be altered with the implementation of DRR strategies with a community focus. Originality/value: The fuzzy logic approach was used in the determination of the societal decision-making on the extent of trust level. Fuzzy triangulation is mainly applied in the interpretation of the results. Further, overall parameters that determine the community trust on MHEW are represented through CLDs through system dynamics application.

Original languageEnglish
Pages (from-to)533-553
Number of pages21
JournalInternational Journal of Disaster Resilience in the Built Environment
Issue number5
Early online date9 Jul 2021
Publication statusPublished - 21 Sep 2022


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