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All Journal INJURITY: Journal of Interdisciplinary Studies Eduvest - Journal of Universal Studies
Budi Witjaksana
Universitas 17 Agustus 1945 Surabaya, Indonesia
Aerospace Engineering Computer Science & IT Economics, Econometrics & Finance Education Engineering Health Professions Neuroscience Public Health Social Sciences

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Analysis of Project Time Acceleration Using The Crashing Method in The Rehabilitation Project of SMPN 2 Pasongsongan, Sumenep District Moh Ali Lutfi M. K.; Budi Witjaksana; Jaka Purnama
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 4 No. 4 (2025): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v4i4.1403

Abstract

Delays in construction projects often result in increased costs and inefficiencies, which can negatively impact project management and resource allocation. To address these issues, this study analyzes project duration acceleration using the Crashing Method by incorporating overtime work hours and additional workforce into the rehabilitation project of SMPN 2 Pasongsongan, Sumenep Regency. This research aims to determine the extent of time reduction achievable when implementing a 3-hour overtime strategy and increasing the workforce simultaneously. Utilizing Microsoft Project 2016, the study compares the original 150-day schedule with an accelerated version using the Crashing Method. The results indicate that the project duration can be reduced to 140 days, saving 10 days. However, this acceleration incurs an additional cost of IDR 21,566,522, primarily due to labor expenses and extended work hours. The study further examines the trade-offs between time efficiency and cost implications, highlighting the importance of effective resource management in construction projects. Findings suggest that the Crashing Method is an effective strategy for project acceleration, provided that cost-benefit analysis, workforce efficiency, and resource availability are carefully considered. The study also emphasizes that proper coordination among project stakeholders, optimized scheduling, and proactive risk assessment are critical for ensuring that acceleration does not compromise work quality or safety standards. By offering insights into the practical application of the Crashing Method, this research serves as a valuable reference for project managers and construction planners seeking to improve time efficiency while maintaining budget control in infrastructure projects.
Analysis of Cost and Time Using Earned Value on the Boarding School Construction Project at SMA Muhammadiyah 3 Tulangan Sidoarjo Titik Nurkaruniati; Budi Witjaksana; Hanie Teki Tjendani
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.3792

Abstract

Effective project management is crucial for the successful completion of construction projects, including the construction of a dormitory at SMA Muhammadiyah 3 Tulangan. Challenges such as design changes, adverse weather conditions, and limited labor resources impact the project's progress. The Earned Value Method is used to monitor project performance by analyzing indicators like BCWS, BCWP, ACWP, SV, CV, SPI, and CPI. This analysis shows that the project initially experienced delays and exceeded budget costs, but the situation improved significantly over time. Despite weekly variations in costs, the project remained on a financially manageable track. The conclusion from this analysis is that while the project faced time delays, cost performance remained under control. Recommendations for improvement include more thorough planning, better resource management, and quicker responses to changes.
Analysis Of The Earned Value Method on the Road and Bridge Preservation Project in Situbondo-Ketapang-Banyuwangi Javan Agustian Setyagraha; Budi Witjaksana; Hanie Teki Tjendani
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.3793

Abstract

The implementation of the Situbondo – Ketapang – Banyuwangi Road and Bridge Preservation Project experienced changes in the area being worked on, requiring additional design. Issues arose when the overlay asphalt mix work was halted to await test results for Aspal Modiv PG – 70 from the Pusjatan Bandung Road Materials Laboratory, causing a delay in the 40th week by -0.813%. Delays primarily occurred in the AC - WC and AC - BC asphalt work, affecting project performance. A cost and time analysis was necessary to address this issue. The Earned Value Method (EVM) was used to determine the project's duration and cost until initial handover. The study results indicated that the project cost performance with a CPI > 1 was good, but an SPI of 0.983 < 1 indicated delays. The estimated final project cost is Rp 112,439,121,070.91, with an estimated completion time of 453 days, 3 days longer than the planned schedule.
Cost and Time Analysis Using the Earned Value Analysis Method Sugeng Hariyadi; Hanie Teki Tjendani; Budi Witjaksana
Eduvest - Journal of Universal Studies Vol. 4 No. 9 (2024): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v4i9.6402

Abstract

Construction project management prioritizes the achievement of three main objectives: cost, quality, and time. This study evaluates a road widening project in Mojokerto Regency with a target completion time of 150 days. To prevent delays and cost overruns, researchers used the Earned Value method to identify early warnings regarding project performance. This method integrates time and cost values through measurements of Cost Variance (CV), Schedule Variance (SV), Cost Performance Index (CPI), Schedule Performance Index (SPI), Estimated at Completion (EAC), and Estimated Schedule at Completion (EAC). The research findings show that additional costs required (ETC) reached Rp 3,276,704,110.14, with additional time (ETS) up to week 12 being 87 days. The change in project costs (EAC) reached Rp 3,961,767,811.01 from the contract cost, while the project completion time (EAS) was 171 days. The analysis indicates that the construction service provider has implemented an efficient implementation method with consistent supervision, ensuring the smooth progress of the project.
Co-Authors Hanie Teki Tjendani Jaka Purnama Javan Agustian Setyagraha Moh Ali Lutfi M. K. Sugeng Hariyadi Titik Nurkaruniati