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All Journal Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Hangga Prima Setiawan
universitas islam Balitar
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering

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Study of the Role of Construction Companies on the K3 Management System as an Effort to Improve the Quality of the Company Nurjanah; Hangga Prima Setiawan; Bambang Hardadi; Iqbal Novarino
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 9 No 2 (2024): SEPTEMBER
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v9i2.1168

Abstract

Measurement of construction companies can be declared good if implementing the Occupational Health and Safety Management System (OHSAS). Meanwhile, the most important element in the OHSAS implementation program is the company's policy on designing the construction work safety system or support from the Board of Directors for the implementing occupational safety design. This study aims to check the influence of the company's owner on the OHSA quality of the company. The survey was followed by distributing questionnaires to several construction company owners in Blitar for data collection. It was taken to determine whether this research is very influential or not at all regarding the importance of the company's owner's role regarding OHSA and the application of protective equipment to reduce work accidents on the quality and competitiveness of the company in the construction project auction in the construction project for private, local, and national governments. The results of the study showed superiors and directors of construction service companies whose roles and responsibilities have not been maximized in implementing the company’s occupational health and safety management system in Blitar. In this case, the implementation of OHSA by the company indirectly contributes to maintaining the quality of the services provided.
Evaluasi Waktu dan Biaya Proyek Konstruksi Menggunakan Kombinasi Metode Precedence Diagram Method dan Program Evaluation and Review Technique: Studi Kasus Pembangunan Ruang Kelas SMK Sore Tulungagung Deni Cahya Saputra; Hangga Prima Setiawan; Heru Hendri Iswanto
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 4 No. 4 (2026): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v4i4.1632

Abstract

Inaccurate project planning can lead to delays and cost overruns, as occurred in the classroom-building project at SMK Sore Tulungagung, which experienced a slowdown in work progress during Phase 1 (structural work) and Phase 2 (architectural work). This study aims to analyze time planning, the critical path, project completion probability, and time and cost efficiency using a combination of the Precedence Diagram Method (PDM) and the Program Evaluation and Review Technique (PERT), through a quantitative descriptive-analytical case-study approach. The results show that the combined PDM-PERT method reduced the duration of Phase 1 from 91 to 85 days (6.59% efficiency) and Phase 2 from 140 to 120 days (14.29% efficiency), with a completion probability of 99.99% (Z = 4.14) and 100% (Z = 11.36) respectively. Application of the combined method also produced a total cost saving of IDR 87,225,902.97 (12.02%). These findings prove that the combined PDM-PERT method is effective as a tool for planning and controlling the time and cost of construction projects.
Co-Authors Bambang Hardadi Deni Cahya Saputra Heru Hendri Iswanto Iqbal Novarino Nurjanah