KURNIAWAN, TRIAS INDY and PERMADI, DANIEL ADI (2026) ANALISIS RISIKO KECELAKAAN KERJA MENGGUNAKAN METODE HAZARD AND OPERABILITY STUDY (HAZOP) PADA PROYEK KONSTRUKSI (Studi Kasus Gedung X Kota Semarang). S1 thesis, UNIVERSITAS KHATOLIK SOEGIJAPRANATA.

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Abstract

Indonesia's population growth, which reached 278.69 million people in 2023 (BPS, 2023), has implications for increasing infrastructure needs, especially the construction of multi-storey buildings in urban areas. This increase in construction activity was followed by a high rate of work accidents, where the construction sector accounted for around 31.9% of the total national work accidents (ILO, 2019). This condition emphasizes the need for a comprehensive and measurable risk management system. However, the application of systematic risk analysis methods in construction projects in Indonesia is still not optimal, so an approach that is able to identify operational irregularities in depth is needed, one of which is through the Hazard and Operability Study (HAZOP). This study aims to analyze the potential hazards and risk levels of work accidents using the HAZOP method in the Building X construction project in Central Java. Data collection was carried out through field observations, interviews, and the distribution of questionnaires to the project implementers. The identification results showed that there were 33 potential hazards with a Risk Priority Number (RPN) value ranging from 24–120, consisting of 9 high risk, 15 medium risk, and 9 low risk. The highest risk was found at work at altitude without the use of a full body harness (RPN = 120), followed by heavy equipment operation (RPN = 108), and welding activities (RPN = 96). The results of this study confirm that the dominance of high risk comes from work behavior factors and negligence in the use of personal protective equipment. Therefore, improving K3 training, continuous field supervision, and regular equipment feasibility checks are top priorities in risk mitigation strategies. The application of the HAZOP method has proven to be effective in providing a systematic evaluation basis for the development of occupational safety management systems in construction projects. In addition, the results of this analysis can be used as a reference for contractors, supervisory consultants, and project owners in developing more measurable occupational safety policies, based on actual risk data.

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