Abstract

Purpose: A This study aims to enhance the effectiveness of disaster mitigation risk assessment in the context of the Serious Accidents Punishment Act, which emphasizes preventive risk management prior to accident occurrence. Despite this regulatory shift, existing risk assessment practices remain largely survey- and document-centered, limiting their ability to reflect actual workplace conditions and latent hazards. Research design, data and methodology: This study adopts a methodological research design rather than an empirical effectiveness verification approach. Prior literature and institutional frameworks related to Continuity of Operations Planning and Business Continuity Management Systems were reviewed, and disaster mitigation risk assessment reports commissioned by public institutions were comparatively analyzed using a baseline–reference case framework. An integrated risk assessment method incorporating workplace walkthrough inspections, a core component of risk management systems under the Occupational Safety and Health Act, is proposed. Results: The analysis indicates that risk assessments incorporating workplace walkthrough inspections demonstrate higher levels of hazard identification completeness, clearer identification of discrepancies between documented procedures and actual on-site operations, and stronger procedural linkage to corrective actions. Conclusions: These results indicate that the proposed method offers a structurally applicable framework aligned with the preventive intent of safety-related legislation, thereby strengthening preventive risk management and managerial accountability in disaster mitigation practices.