Claim Missing Document
Check
Articles

Found 2 Documents
Search

Analysis of The Influence of Labor, Materials, and Site Characteristics on Individual Performance and Time Performance in The Implementation of Steel Frame Bridge Projects Aries Andry Afriady; Agus Suroso
Eduvest - Journal of Universal Studies Vol. 5 No. 3 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i3.1796

Abstract

Understanding the impact of project time performance on individual performance is key to demonstrating reliability, commitment, and valuable time management skills. This study aims to To find out, obtain, and analyze the influence of labor, material and site characteristics on individual performance of steel bridge construction projects, find out get, and analyze the influence of labor on Individual performance, find out get, and analyze the influence of material on Individual performance, find out get, and analyze the influence of site characteristics on Individual performance, find out, obtain, and analyze the influence of individual performance on time performance. find out, obtain, and analyze the control of labor factors, site characteristics, and materials on individual performance and time performance of steel bridge construction projects. The type of research used is quantitative research, with a sample size of 100 people consisting of contractors, consultants and suppliers, with regression analysis assisted by spss 21 software and path analysis with SmartPLS 4 software. The results of the study of labor, materials, and characteristics of the place together have a significant effect on individual performance in bridge construction projects, labor has a positive and significant effect on individual performance in bridge construction projects, materials have a positive and significant effect on individual performance in bridge construction projects, characteristics of the place have a positive and significant effect on individual performance in bridge construction projects, individual performance has a positive and significant effect on time performance in bridge construction projects and Control of labor factors.
Cost Estimation Analysis Based on Construction Management, Value Engineering, and Lean Six Sigma for Cost Efficiency Improvement in Coal Transportation Road Projects Priyogi Karta Laksana; Agus Suroso
Eduvest - Journal of Universal Studies Vol. 5 No. 6 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i6.50253

Abstract

This study aims to evaluate the cost efficiency of the coal haul road improvement project in Muara Tuhup, Central Kalimantan, through the application of Construction Management, Value Engineering, and Lean Six Sigma. Quantitative and qualitative approaches are used to analyze cost efficiency and technical aspects, with data collected through observations, interviews, and questionnaires. The results show that the three independent variables contribute 71.2% to cost efficiency, with Value Engineering being the dominant factor at 32.3%. The analysis shows cost savings of Rp 592.375 billion, or 28.49% of the initial budget, through the application of chip seal layers to increase the life of the road. Post-Value Engineering cost estimates show a reduction in maintenance costs of up to 20 years, with a payback period of 8 years and 10 months. This study recommends the application of Value Engineering and Lean Six Sigma to improve the cost efficiency and sustainability of coal haulage projects.