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Safety interventions are a crucial component of organizational strategy, which are aimed at mitigating factors that compromise workplace safety. In the construction industry, these interventions are vital owing to the high-risk nature of construction activities. For developing effective safety interventions, the underlying factors that drive the need for these interventions must be understood. This study identifies and analyzes the critical factors driving safety interventions in Thai construction projects, focusing on both situational and organizational factors.

A survey conducted with a questionnaire among medium- to large-sized building contractors in Bangkok and nearby areas garnered 98 project responses. To validate the constructs of reasons for safety interventions and identify critical safety practices, the data were analyzed using confirmatory factor analysis and structural equation modeling.

The results indicate that organizational factors, positively influenced by situational factors, have a direct effect on safety interventions. Successful safety interventions can be obtained by focusing on five key organizational factors: safety as a core value, continuous improvement plans, leadership and management support, safety strategies and policies and safety committees.

These results provide valuable insights for construction site management, providing guidance on improving safety interventions via the effective utilization of these critical factors.