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All Journal Jurnal Teknik Sipil JHP17 (Jurnal Hasil Penelitian) The Spirit of Society Journal : International Journal of Society Development and Engagement EXTRAPOLASI: Jurnal Teknik Sipil Jurnal Review Pendidikan dan Pengajaran (JRPP) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Teknik Industri Terintegrasi (JUTIN) International Journal Of Science, Technology & Management (IJSTM) Devotion: Journal of Research and Community Service Extrapolasi International Journal of Social Service and Research JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) Jurnal Rekayasa Teknik Sipil dan Lingkungan Journal Of Human And Education (JAHE) International Journal Science and Technology (IJST) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) INJURITY: Journal of Interdisciplinary Studies Asian Journal of Social and Humanities International Journal of Social Science and Community Service
Budi Witjaksana, Budi
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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ANALYSIS OF COST CALCULATION IN THE CONSTRUCTION PROJECT OF KAPAS – GLENDENG 8 BRIDGE IN BOJONEGORO DISTRICT DUE TO TIME ACCELERATION USING THE CRASHING METHOD WITH ALTERNATIVE ADDITION OF WORKING HOURS Ariyanto, Subkhan; Tjendani, Hanie Teki; Witjaksana, Budi
JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS Vol. 3 No. 2 (2024): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/jhssb.v3i2.1008

Abstract

Infrastructure development plays a very important role as capital in efforts to stimulate increased economic productivity, both at the national and regional levels, as well as reducing unemployment, alleviating people from poverty and of course improving the standard of living of the community at large. Delays in completing a project are a problem that often arises and can have an impact on the entire work, especially with time delays resulting in increased costs which can be detrimental to many parties. This delay also occurred in the Kapas-Glendeng 8 bridge construction project, Bojonegoro Regency. In anticipation of these delays, it is necessary to accelerate time and costs. In this research the author uses the crashing method with the alternative of increasing working hours. The crashing method is a way of estimating cost variables to determine the maximum and most economical reduction in the duration of an activity that is still possible to reduce. The research results showed that the total time and cost of the project required after crashing was 174 calendar days with a cost under accelerated conditions of Rp. 2,555,189,555.98 with a difference of 6 calendar days from the normal duration of 180 calendar days and a fee under normal conditions of Rp. 2,548,581,990.63.
Acceleration Cost Analysis with Critical Path Method: (Case Study on Jakarta Sewerage Development Project Zone 1, Package 2: Construction of Wastewater Sewers in Area 1-1) Hartawan, Ade Sholeh; Witjaksana, Budi; Wulandari, Esti
International Journal of Social Science and Community Service Vol. 2 No. 4 (2024): OCTOBER
Publisher : CV. Proaksara Global Transeduka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70865/ijsscs.v2i4.11

Abstract

In a construction project, preparation work typically includes tasks related to setting up work facilities, conducting field investigations, obtaining permits, and non-structural activities. The Jakarta Sewerage Development Project Zone 1, Package 2, which involves the construction of sewers in Area 1-1, is currently in the preparation phase and is experiencing challenges due to a complex permit process. This has led to minimal progress as the initial project planning did not consider the time needed to secure the necessary permits for implementation. The author is therefore evaluating the project timeline to gauge performance during the preparation phase before actual construction begins. This study utilizes the Critical Path Method (CPM) scheduling technique in Microsoft Project to pinpoint critical activities. Upon analysis, it was found that the budget plan for Package 2 of the Jakarta Sewerage Development Project (Zone 1) was detailed and included various work descriptions, with a total budget of IDR 862,292,086,196. However, delays have occurred, resulting in a 17-day setback in the project schedule, necessitating work acceleration. To bring the project duration back in line with the original schedule as per the contract, acceleration was required. This was carried out on the Shaft Construction C-8.1, which was initially set to take 80 days but was shortened to 63 days through time acceleration, incurring a cost of IDR 23,279,288.
Analysis of Investment Sensitivity in The Construction of The Gelora Bung Tomo Surabaya Circuit Sulistianto, Leo Agus; Witjaksana, Budi; Wulandari, Esti
International Journal of Social Science and Community Service Vol. 2 No. 4 (2024): OCTOBER
Publisher : CV. Proaksara Global Transeduka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70865/ijsscs.v2i4.12

Abstract

Provision of Sports Prasarana is an attempt to fulfill the basic rights of the public to obtain services in sports activities, as listed in Law of the Republic of Indonesia Number 11 of 2022 concerning Sports 2022. The growing automotive industry is one important sector that significantly contributes to Indonesian economic growth. Based on the Surabaya City for 2021-2026 calls for the creation of an integrated area, with the Gelora Bung Tomo area serving as an international sports center and integrating with the growth of trade and service functions in Surabaya's surrounding areas. The aim of this study is to measure the amount of investment income and revenue limits in an effort to reduce the risks associated with the investment in the circuit. We carry out flow calculations using the Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), and Payback Period (PP) methods, and then analyze the sensitivity. We reviewed the sensitivity analysis based on several parameters, including commercial rent income and circuit management costs. The development of Tomo's Gelora Circuit is sensitive to a loss of income from the rental of business or commercial premises of 8%, which will affect a decline in profit, resulting in a negative net present value (NPV) and prolonging the rate of return. Additionally, it is sensitive to an increase in management costs by 12%.
Analysis of Cost and Time To Complete of Office Project with The Earned Value Method: (Case study: Office of Bahtera Elang Perak Indonesia Surabaya) Nailufar, Linda; Witjaksana, Budi; Wulandari, Esti
International Journal of Social Science and Community Service Vol. 2 No. 4 (2024): OCTOBER
Publisher : CV. Proaksara Global Transeduka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70865/ijsscs.v2i4.33

Abstract

The rescheduling of the initial schedule carried out on the Bahtera Elang Perak Indonesia Office Construction project has an impact on increasing the duration of work causing the project completion target to be delayed from the time it should be. Increasing the project completion target can affect the amount of costs incurred. The contract value for this office construction project is Rp. 13,908,226,157 with a work duration of 43 weeks to 54 weeks.  The current condition of work progress at week 31 is -0.225% while the total actual cost or that has been incurred during the work is Rp. 3,191,740,254. To overcome this, an analysis is carried out on the value of the estimate at complete (EAC) and time estimate (TE) of the Surabaya BEPI Office Construction Project using the earned value method. This method combines the elements of cost, schedule, and work performance.  The earned value method aims to determine the estimated cost and time of project completion. From the results of the analysis conducted in the 41st week, it was obtained that the estimated cost and time to complete the project implementation (EAC) was 14,289,833,105, - and the estimated time (TE) was 499 days, which was 121 days later than the original schedule.
ANALYSIS OF COST AND TIME VARIANCE IN CONSTRUCTION PROJECTS USING CV AND SV PARAMETERS: A CASE STUDY OF THE JEMBER LUNG HOSPITAL BUILDING Widyarso, Riza; Witjaksana, Budi; Purnama, Jaka
International Journal of Social Service and Research Vol. 5 No. 1 (2025): International Journal of Social Service and Research
Publisher : Ridwan Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/ijssr.v5i1.1174

Abstract

Cost and time management in construction projects is an important aspect of project management. In this study, the cost and time performance of the Jember Lung Hospital Building construction project is evaluated using Schedule Variance and Cost Variance analysis. The study aims to provide practical and applicable solutions to improve time and cost efficiency without sacrificing project quality. The results show that the project experienced a cumulative delay of 29 calendar days and considerable cost overruns compared to the original budget. In addition, the study focuses on analyzing the effectiveness of CV and SV variance analysis in the context of construction projects in Indonesia. The findings highlight the importance of strengthening risk management, more careful planning, and the application of more advanced project management technologies to improve the efficiency and sustainability of future projects.
Formation of Waste Banks and 3R Waste Management in Villages in Creating Healthy Independent Villages Witjaksana, Budi; Asrijal, Andi; Arifin, Syaadiah; Intiar, Septa; Desembrianita, Eva
Journal Of Human And Education (JAHE) Vol. 5 No. 2 (2025): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v5i2.2306

Abstract

Abstrak Kegiatan Pengabdian Kepada Masyarakat melalui sosialisasi dan praktek langsung kepada masyarakat dengan mendirikan bank sampah dan mengelola sampah berdasarkan prinsip 3R bertujuan untuk mengedukasi masyarakat tentang urgensi pengelolaan sampah dalam mewujudkan lingkungan yang bersih dan sehat. Kegiatan ini dilaksanakan di salah satu desa di Jawa Timur tepatnya di Desa Trewung, Kecamatan Grati, Kabupaten Pasuruan, Jawa Timur. Kegiatan ini diawali dengan survei dan koordinasi dengan perangkat Desa Trewung terkait permasalahan sampah yang dihadapi masyarakat. Kemudian menyusun tim pengabdian masyarakat dan meminta izin pada Pemerintah Desa Trewung, Serta pelaksanaan sosialisasi dengan mengedukasi masyarakat melalui kegiatan sosialisasi serta implementasi pendirian bank sampah dan pengelolaan sampah berdasarkan prinsip 3R. Hasil dari kegiatan pengabdian ini masyarakat Desa Trewung lebih teredukasi dan semakin memahami pentingnya mengatasi permasalahan sampah melalui pemanfaatan sampah yang dapat bernilai ekonomis serta pengelolaan sampah yang tepat berdasarkan prinsip 3R. Kegiatan ini membantu masyarakat dengan cara mensosialisasikan pentingnya menanamkan kebudayaan yang menciptakan lingkungan bersih dan sehat. Kata Kunci: Bank sampah, 3R, Desa mandiri Abstract Community Service Activities through socialization and direct practice to the community by establishing a waste bank and managing waste based on the 3R principle aims to educate the community about the urgency of waste management in creating a clean and healthy environment. This activity was carried out in one of the villages in East Java, precisely in Trewung Village, Grati District, Pasuruan Regency, East Java. This activity began with a survey and coordination with the Trewung Village apparatus regarding the waste problems faced by the community. Then form a community service team and ask for permission from the Trewung Village Government, as well as implementing socialization by educating the community through socialization activities and implementing the establishment of a waste bank and waste management based on the 3R principle. The results of this community service activity are that the Trewung Village community is more educated and increasingly understands the importance of overcoming waste problems through the utilization of waste that can have economic value and proper waste management based on the 3R principle. This activity helps the community by socializing the importance of instilling a culture that creates a clean and healthy environment. Keywords: Waste bank, 3R, Independent village
TECHNICAL AND COST ANALYSIS OF FLOOD CONTROL PLANNING USING THE ECODRAINS-BASED SPONGE VILLAGE MODEL IN THE KAMONING SAMPANG WATERSHED Muqaddas, Zaiful; Witjaksana, Budi; Tjendani, Hanie Teki
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 1 (2024): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i1.1021

Abstract

The Kali Kamoning Watershed in Sampang Regency, spanning 35,421.15 Ha, experiences annual major floods affecting Sampang City. Despite various attempts and budget allocations at different administrative levels, flooding remains a persistent issue. A proposed solution is the implementation of an Ecodrains-based sponge village model for flood control, specifically targeting upstream areas like Karang Penang, Robatal, Kedungdung, Omben, and Sampang sub-districts. The model, cost-effective and easy to construct, utilizes the HEC-HMS software for technical analysis, simulating river capacity and calculating flood reduction. The sponge village model demonstrates a substantial reduction of flooding by 73.14%, equivalent to 326.3 m3/sec. The Q25th flood discharge measures 446.1 m3/sec. Estimated construction costs using the SNI method amount to IDR 917,588,260,000, aiming to control the Q25th flood. This innovative approach offers a promising strategy for mitigating flooding in Sampang City through sustainable watershed management and cost-efficient infrastructure development. Key terms: Watershed, Flood Reduction, Ecodrains, Sponge Village Model, HEC-HMS, Q25th, Construction Costs.
Formulation of Policy on The Implementation of Criminal Punishment Sanctions and Rehabilitation Against Children as Drug Abuse Perpetrators Ridwan, Ridwan; Witjaksana, Budi; Purnama, Jaka
INJURITY: Journal of Interdisciplinary Studies 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.v4i4.1404

Abstract

This research aims to analyze the cost estimation of risk mitigation in the construction project of the Pamekasan Regency Regional General Hospital. Construction projects are highly complex and often face multiple risks, including technical, environmental, and management factors, which can significantly affect cost efficiency and project completion time. Failure to address these risks appropriately can lead to budget overruns, prolonged delays, and compromised construction quality. The research employs a quantitative approach using the Probability and Impact Matrix and Severity Index to systematically identify, categorize, and assess the impact of construction risks. The findings reveal that the total estimated cost of risk mitigation reaches Rp. 290,450,000, which primarily covers additional labor, high-quality material procurement, and the application of technology for project monitoring. To mitigate these risks, several key strategies have been implemented, including stricter contract management, improved stakeholder communication, enhanced workforce capacity, and advanced project monitoring techniques. Furthermore, digital-based monitoring systems and early risk detection mechanisms are suggested to prevent major disruptions in the project workflow. By implementing effective mitigation strategies, the project is expected to operate more efficiently, minimize unnecessary costs, and adhere to the planned construction schedule. The study highlights the importance of proactive risk management in large-scale infrastructure projects, providing valuable insights for contractors, project managers, and policymakers involved in hospital construction. These findings emphasize the need for continuous evaluation and adaptation of risk mitigation strategies to ensure successful project execution.
Analysis of Occupational Safety and Health (OSH) Cost Requirements in The Construction of Rubaru 1 Elementary School Permana, Midi Agus; Witjaksana, Budi; Purnama, Jaka
Asian Journal of Social and Humanities Vol. 3 No. 7 (2025): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v3i7.543

Abstract

This research addresses the critical issue of insufficient budget allocation for Occupational Safety and Health (OHS) systems in construction projects, specifically in the Rubaru 1 Elementary School building project in Sumenep District, Indonesia. The study explores how limited financial resources for safety measures, such as personal protective equipment (PPE), worker training, and health facilities, affect the implementation and effectiveness of OHS systems. The urgency of this research lies in the growing need to allocate adequate resources to OHS, as insufficient funding increases the risk of workplace accidents, delays project timelines, and raises costs. Previous studies, including Lestari et al. (2023) and Saragi & Sinaga (2021), have emphasized the positive impact of adequate OHS budgets on reducing accidents and improving productivity. However, a gap exists in research regarding the specific cost components required for effective OHS implementation, especially in relation to construction projects with limited budgets. This study fills this gap by analyzing the key cost components for OHS and their direct impact on worker safety and project performance. The findings will provide valuable insights for construction companies to optimize their OHS budgets and enhance safety measures. It also contributes to the development of industry standards and practices for OHS management in future construction projects.
High-Level Risk Analysis in the Construction Project of RSUD Dr. H. Slamet Martodirdjo in Pamekasan Ridwan, Ridwan; Witjaksana, Budi; Purnama, Jaka
Asian Journal of Social and Humanities Vol. 3 No. 7 (2025): Asian Journal of Social and Humanities
Publisher : Pelopor Publikasi Akademika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59888/ajosh.v3i7.544

Abstract

The construction of the Regional General Hospital Dr. H. Slamet Martodirdjo in Pamekasan Regency faces several challenges, particularly concerning high-level risks that may impact project success. This study aims to identify and analyze major risks affecting project completion and propose effective mitigation strategies. Using a survey method, data were collected from key stakeholders and processed using the Severity Index and Probability and Impact Matrix to assess risk levels. The findings identified 25 potential risks, with eight categorized as high-level risks: implementation method errors, difficulties in installing cross foundations, delays in critical path tasks, late material procurement, labor shortages, non-compliance with occupational safety regulations, lack of teamwork among workers, and adverse weather conditions. These risks significantly impact the project timeline, budget, and overall quality. The study also reveals that poor coordination among stakeholders, inefficient risk management practices, and regulatory constraints contribute to project delays. To mitigate these risks, strategic planning, improved procurement management, workforce training, and strict adherence to occupational safety regulations are recommended. Additionally, the adoption of technology-driven solutions, such as digital monitoring systems and e-procurement platforms, can enhance project oversight and efficiency. By implementing a systematic risk management framework, construction projects can minimize potential disruptions, ensure timely project delivery, and maintain cost efficiency. The findings of this study provide valuable insights for project managers, contractors, and policymakers in the construction industry, particularly for large-scale healthcare infrastructure projects. A proactive risk mitigation approach is essential to achieving successful project execution and sustainable infrastructure development.
Co-Authors A. Asrijal Abdul Q, Muhammad Ali Hasymi Adam, Ijaz Agustian Setyagraha, Javan Akhmad Dahlan Alan Muin, Oskar Ezra Ali Imron, Mohammad Alifia Amalia, Mekar Meilisa Ardhiansyah, Widha Ari Purwanti Arifin, Syaadiah Ariyanto, Subkhan Asmoro, Mochamad Ranoe Balido, Pandji Thoha S. Darmawan, Rifky Dewi, Dita Dismalasari Eko Pramono Ernitasari, Windya Yunesti Esti Wulandari Eva Desembrianita Firdaus, Muhammad Bayu Gede Sarya, Gede Hamzah, Aulia Hanie Teki Tjendani, Hanie Teki Hardi, Edelbertus Lusius Hartawan, Ade Sholeh Hepiyanto, Rasio Hepiyanto, Rasio Herry Widhiarto, Herry Imron, Achmad Imron, Achmad Irfan, Bachtiar Muhammad Jaka Purnama Khakimin, Achmad Lukmanul Lendra Lendra Lutfi, Moh Ali Meganda, Danniar Firdaus Mochamad Nurcholis Mughni, Amalia Fathimah Azh Zhahra Muhammad Muhammad Muqaddas, Zaiful Nailufar, Linda Nofirman, Nofirman Nugraha, Budidarma Ardi Nurkaruniati, Titik Patriadi, Andi Permana, Midi Agus Pramadha, Ichsan Yanuansyah Pratondo W, Wahyu Proboretno, Wuri Purba, Ulfani Ikhwana Putri, Dwi Cahyani Rafi, Yudha Fatkur Raimundo, João Rakasyiwi, Gilang Ramadhan Reresi, Samuel Petrik Reresi, Samuel Petrik Riduwan, Sanda Praja Ridwan, Ridwan Rohim, Abd. RR. Ella Evrita Hestiandari Septa Intiar SETIAWAN, ENDIK Sugeng Hariyadi, Sugeng Sulistianto, Leo Agus Tamrin Fathoni Teguh Prasetijo, Christiawan Teki Tjendani, Hanie Tjendani , Hanie Teki Veithzal Rivai Zainal Wahananto, Anang Widyarso, Riza Wulandari , Esti Zuhri, Syaefuddin