The "Manual for Actions at Scene" has been continually improved to enhance its usability at accident sites. However, the municipality is still perceived to lack an adequate disaster response guideline because of the large volume and complex structure of the manual. In this study, four improvements are suggested to enhance the manuals' usability. The first is improving the structure of the optimal Disaster and Safety Countermeasure Headquarters and the Consolidated Support Headquarters, while considering the necessary cooperative functions for each type of disaster. The second is including response procedures and major measures to facilitate a rapid disaster response. The third is strengthening the linkage of the disaster response action tips and the process and making the contents faithful by departments and disaster response steps. The fourth is a reconstruction of the appendix, while focusing on essential reference materials. After applying these improvement measures to 18 manuals in Buk-gu, Daegu Metropolitan City, the disaster responder using manuals perceived the readability to have become excellent and emergency organizations to have become more efficient. In particular, the staff believed that the disaster response procedures and major measures would enable a certain level of disaster response. Although the amount of manuals has increased as a result of the improvements to the SOP, it is expected that the manuals' applicability in education and training will also improve.

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