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All Journal Journal of Civil Engineering Journal of Applied Sciences, Management and Engineering Technology (JASMET)
Wiguna, Putu Artama
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Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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The Impact of the COVID-19 Pandemic on Work Productivity in Project X in Batam Using the Data Envelopment Analysis (DEA) Method Br Sembiring, Yohana Selliabreint; Wiguna, Putu Artama
Journal of Applied Sciences, Management and Engineering Technology Vol 5, No 2 (2024)
Publisher : Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jasmet.2024.v5i2.6635

Abstract

The development of 4.0 industry has a major influence on worldwide gas consumption. In order to meet the requirement, the gas producing company, such as Qatargas, performs expansion by building more offshore platforms on the fields. Qatargas’s infrastructure contructs by Project X that operating in Batam, Indonesia. The project X awarded by Qatargas to commence by the end of 2021. The scope of work includes engineering, procurement, construction, and installation (EPCI). During the construction, an unexpected even, COVID-19, occurred and caused a negative impact to the construction productivity. A non-parametric Data Envelopment Analysis (DEA) is utilized to measure performance trends with focus on project X daily progressing report from 2022 (during pandemic) until 2023 (post-pandemic). SWOT and PEST are utilised to analyse the improvement strategy by Project X. Efficiency measurement by DEA has 3 different variable, such as total employee, total welding made, and work pack issued, whereby the output is total manhours earned. This report also analyses six division of Decision-Making Unit (DMU). The research employs SWOT analysis to identify factors affecting project performance and strategies for efficiency improvement. Based on the analysis, there is no significant impact due to pandemic since PT X still could continue to perform fabrication while maintaining the required health protocol. The mean efficiency is 0,734 in 2022 and 0,656 in 2023. The project productivity declines by 0,078 because of declining efficiency parameter on Production Electrical dan Structural Quality Division. The efficiency improvement strategy for Project X includes optimizing the number of employees, minimizing rework, and daily monitoring of manhours earned to prevent inaccurate work hour claims.
The Impact of Safety Factors on Safety Performance (Study on Hydroelectric Power Plants in Sumatra) Freshima, Sarah; Wiguna, Putu Artama
Journal of Civil Engineering Vol. 41 No. 1 (2026)
Publisher : Institut Teknologi Sepuluh Nopember (ITS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25799029.v41i1.9509

Abstract

This research is motivated by the urgency of improving occupational safety in dam maintenance activities at Hydroelectric Power Plants, particularly in the Sumatra region. Although not included in the category of new construction projects, dam structural maintenance and repair activities still contain high risks, especially the potential for technical failures such as seepage which globally is the main cause of dam collapse. At the national level, hydroelectric power plants play a vital role in supporting energy security, but the implementation of Occupational Safety and Health programs is still not optimal. This is reflected in the absence of hydroelectric power plants in Sumatra that have received the Zero Accident award, as well as the number of recurring occupational accidents at several hydroelectric power plants, such as at plants X and Y, over the past five years. This situation emphasizes the need for an in-depth study of the factors that influence the effectiveness of occupational safety systems in the hydroelectric power plant maintenance project sector. This study aims to analyze the influence of safety leadership, safety climate, safety culture, and safety behavior on safety performance, using a quantitative approach with the Partial Least Squares Structural Equation Modeling (SEM-PLS) method. A total of 117 respondents were selected using purposive cluster sampling. The analysis shows that safety culture has the strongest positive influence on safety performance. This research confirms that optimal safety performance can only be achieved through the synergy between a strong safety culture, ingrained safety behaviors, supportive leadership, and a safety climate.
Co-Authors Br Sembiring, Yohana Selliabreint Freshima, Sarah