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All Journal International Journal on Advanced Technology, Engineering, and Information System (IJATEIS)
Hanie Teki Tjendani
Master of Civil Engineering Study Program, Faculty of Engineering, Universitas 17 Agustus 1945 Surabaya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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TIME AND COST ACCELERATION ANALYSIS USING CRASHING METHOD WITH ADDITIONAL WORKING HOURS IN THE CONSTRUCTION PROJECT OF KAPAS – GLENDENG 8 BRIDGE, BOJONEGORO DISTRICT Subkhan Ariyanto; Hanie Teki Tjendani; Budi Witjaksana
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 2 No. 4 (2023): NOVEMBER
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v2i4.974

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.
ANALYSIS OF CONTRACT CHANGE ORDER (CCO) COSTS IN BUILDING CONSTRUCTION PROJECTS Wahyu Pratondo W; Budi Witjaksana; Hanie Teki Tjendani
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.v3i1.991

Abstract

In project implementation, change orders frequently arise post-contract signing between the owner and contractor. These changes often stem from design modifications or budget adjustments by the owner. Contractor-initiated change orders result from disparities between design plans and bill of quantities, insufficient design details, impractical field conditions, complex design execution, and challenges in material mobilization. Poorly managed change orders can lead to increased costs, delays, and diminished contractor performance. To mitigate change orders, this study employs change order correlation analysis using original data, evaluating change order ratio (COR), change order ratio in addition (CORA), and change order ratio in subtraction (CORS). Analyzing six construction projects, the study concludes that the average Change Order Ratio Index (COR) is 26%, indicating a 26% change from the original contract value. The average Change Order Ratio in Addition (CORA) is 16%, signifying 16% of changes result from additional work. The average Change Order Ratio in Subtraction (CORS) is 10%, indicating 10% of changes stem from work being less than the original contract value.
COST AND TIME ANALYSIS USING EARNED VALUE METHOD BUILDING CONSTRUCTION OF DISTANCE LEARNING PROGRAM UNITS OF SURABAYA OPEN UNIVERSITY PHASE II Mochamad Ranoe Asmoro; Budi Witjaksana; Hanie Teki Tjendani
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.v3i1.1020

Abstract

Project delays often serve as a catalyst for conflicts and disagreements between project owners and contractors, leading to significant financial implications. Such delays result in costly consequences for both parties involved. Contractors face the imposition of penalty fines as stipulated in the contractual agreement, alongside incurring overhead costs during the prolonged project duration. Conversely, owners experience a direct impact on their revenue streams due to delays in the operationalization of the facility. In the context of the construction of the Surabaya Open University Distance Learning Program Unit building phase II, the examination of cost and time performance becomes imperative. Employing the earned value method offers a comprehensive approach to project performance evaluation, involving a meticulous comparison of actual expenses and timelines with the initially anticipated costs. This analytical approach aids in understanding the project's progress and identifying areas where adjustments may be necessary to mitigate potential delays. The Earned Value Method (EVM) analysis of the Surabaya Open University Distance Learning Program Unit building phase II reveals a projected total cost of IDR 73,908,443,223.09 by the time the project reaches completion. This estimation provides stakeholders with valuable insights into the financial commitment required for the successful conclusion of the project. Additionally, the anticipated timeline for completion is estimated at 53 weeks, serving as a crucial parameter for project planning and management.
TECHNICAL AND COST ANALYSIS OF FLOOD CONTROL PLANNING USING THE ECODRAINS-BASED SPONGE VILLAGE MODEL IN THE KAMONING SAMPANG WATERSHED Zaiful Muqaddas; Budi Witjaksana; Hanie Teki Tjendani
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.
ANALYSIS OF IMPLEMENTATION DELAYS USING THE EARNED VALUE METHOD (ON THE PURWOSARI - SEKARMOJO ROAD WORKS, PASURUAN DISTRICT) Pandji Thoha S. Balido; Hanie Teki Tjendani; Budi Witjaksana
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.v3i1.1022

Abstract

Along with the very rapid development of infrastructure and construction in Indonesia in the era of globalization, the Indonesian government has carried out various large-scale projects to achieve the increasingly complex expectations of society. This will trigger the growth of the construction industry in Indonesia and become one of the main goals in the framework of national development. An infrastructure development project is an activity carried out with limited time and resources to achieve a specified final result. One of the construction projects currently being developed is Road Works. The Earned Value method can be used to determine cost performance and implementation time during the project and the indicators used for analysis include: BCWP (Budget Cost of Work Performance), BCWS (Budget Cost of Work Schedule), ACWP (Actual Cost of Work Performance), SV (Schedule Variance), CV (Cost Variance), SPI (Schedule Performance Index), CPI (Cost Performance Index), EAC (Estimated At Complete) and ET (Estimated To Complete) and TE (Time Estimate). Conclusions from this research is to determine the estimated costs and time for project completion. In the data analysis in the 9th week, the project schedule performance (CPI) was 1.14, greater than 1, while (SPI) was 0.587, less than 1. The results of the calculation of projected costs for the remaining work (ETC) were IDR. 1,586,686,537.62 and total project costs (EAC) of Rp. 2,509,041,243.08.
COST AND TIME ANALYSIS USING EARNED VALUE METHOD ON THE CONSTRUCTION OF THE NATIONAL KEDIRI AIRPORT ACCESS ROAD PHASE 1 KEDIRI - NGANJUK Ichsan Yanuansyah Pramadha; Hanie Teki Tjendani; Budi Witjaksana
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.v3i1.1023

Abstract

Project completion delays have adverse consequences on a contractor's credibility and result in additional penalty costs, reducing potential profits. To mitigate these issues and optimize project outcomes, refining activity schedules and budgets is crucial. The Earned Value Method proves effective in monitoring and controlling project activities. In the case of the Kediri airport access road construction project, weeks 1 to 6 revealed a negative Cost Variance (CV), indicating higher-than-planned costs, while weeks 7 to 8 showed a positive CV, suggesting costs were lower than anticipated. Schedule Variance (SV) for the 1st week was unfavorable, indicating a delay, and SV>1 from weeks 2 to 8 signaled a project delay. The Estimate to Complete (ETC) is IDR 17,470,510,292.77, and the Estimate at Complete (EAC) is IDR 32,509,153,464.05. The Time Estimate (TE) forecasts project completion in 89 calendar days, five days beyond the contracted 84 days. Employing the Earned Value Method enhances project performance evaluation and decision-making to avoid delays and cost overruns.
COST AND TIME ANALYSIS OF THE FAST FOOD RESTAURANT BUILDING CONSTRUCTION PROJECT IN PONTIANAK USING CRASHING METHOD Oskar Ezra Alan Muin; Hanie Teki Tjendani; Budi Witjaksana
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.v3i1.1046

Abstract

The construction project of the McD Pontianak building encountered significant challenges due to a tight schedule of 110 calendar days and unforeseen delays arising from the existing building's foundation. These delays led to a setback in the construction progress, prompting the need for strategic measures to accelerate the project and mitigate the delays amounting to 11.48%, equivalent to 12.63 days. The potential financial consequences of this delay were estimated at IDR 228,366,605. In order to expedite the construction process, the chosen acceleration method was the crashing method, involving an increase in overtime ranging from 1 to 4 working hours, in accordance with relevant laws and regulations. This required a comprehensive analysis encompassing normal cost, normal duration, critical path, productivity, crashing cost, and crashing duration calculations. Upon thorough examination, it was determined that the optimal solution to overcome the delays was to implement an additional 2 hours of overtime. However, this decision came with associated costs, resulting in a necessary expenditure of IDR 93,651,965 to achieve a crashing time of 18.30 days. Despite the increased financial commitment, this strategic approach was deemed essential to meet the project's original schedule and avoid potential penalties. The findings and conclusions drawn from this analysis provide valuable insights into effective project management and decision-making in the face of unexpected challenges in the construction industry.
COST MANAGEMENT ANALYSIS WITH EARNED VALUE METHOD ON ROAD IMPLEMENTATION PROJECT IN UAIACA - QUELECAI TO OSSU BAUCAU CITY, TIMOR LESTE Agata Maria Orleans Alves; Hanie Teki Tjendani; Esti Wulandari
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 3 (2024): AUGUST
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i3.1183

Abstract

Project management plays a critical role in ensuring the success of infrastructure projects like road implementations, which are essential for the development of emerging regions such as Baucau City, Timor Leste. Challenges often arise due to discrepancies between planned schedules and actual implementation, exacerbated by logistical constraints and unforeseen changes in project requirements. Effective cost management, exemplified by methods like Earned Value Management (EVM), becomes crucial in maintaining project feasibility and controlling expenditures. The purpose of this study was to analyze the cost of road implementation projects using the Earned Value Analysis Method. The method used in this study is to use the Earned Value Method with a project duration of 18 months, where the importance of the earned value analysis method is very helpful for the owner and project implementer to more easily analyze the performance of the project being carried out so as to provide benefits for the owner and project implementation. The findings revealed a project cost overrun of $205,483.12, attributed to low labor productivity and inadequate management, resulting in extended project timelines and subsequent delays in follow-up activities.
PERFORMANCE ANALYSIS OF PDAM CLEAN WATER SERVICE NEEDS FOR DOMESTIC CUSTOMERS OF WAGINOPO VILLAGE, WANGI-WANGI DISTRICT, WAKATOBI DISTRICT Jamiludin Jamiludin; Esti Wulandari; Hanie Teki Tjendani
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 4 (2024): NOVEMBER
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i4.1241

Abstract

Clean water is essential for society's basic needs like drinking, bathing, cooking, washing, and industrial purposes. Having clean water available in a community is crucial due to the busy nature of society. However, in Waginopo Village, the drinking water supply system is not functioning well. Reports show that the water from PDAM only runs every 2 days, once a week, and for a maximum of 12 hours. The aim of this research is to analyze the performance of PDAM Wakatobi's clean water services to meet the needs of the Waginopo Village community for clean water. In this research, not only numerical data will be collected, but also information about what the community desires regarding the performance of the clean water distribution system, so this research study approach uses a combination of quantitative and qualitative approaches. From the results of the analysis, it can be said that the performance of the Wakatobi Regency PDAM service for the Waginopo Village service area is based on the 6th assessment aspect, where the distribution aspect is assessed with a performance value of "Not Good", for the production quality aspect the performance value is "Good", for the meter recording aspect with the performance value is "Good", for the payment aspect the performance value is "Good", for the complaint handling aspect the performance value is "Good", and for the tariff aspect the performance value is "Not Good".
TIME ACCELERATION ANALYSIS USING THE TIME COST TRADE OFF METHOD ON THE WHEAT SILO AND PELLET SILO STRUCTURE REPAIR PROJECT PHASE III IN SURABAYA Maria Junita Klau; Sajiyo Sajiyo; Hanie Teki Tjendani
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 3 (2024): AUGUST
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i3.1254

Abstract

The wheat silo and pellet silo structural repair project Phase III in Surabaya holds great significance for the wheat flour processing industry in Indonesia. PT Indofood Sukses Makmur Tbk Bogasari Surabaya Division, as one of the leading wheat flour producers, required structural repairs on both silos to ensure the smooth operation of the plant and the quality of the final product. Given the importance of time and cost in the success of this project, an effective approach to time and cost management was essential. The project necessitates proper project management to avoid delays and cost overruns, with a budget of IDR 28,011,000,000 and an estimated duration of 455 calendar days. This research employs the Time Cost Trade Off (TCTO) method to analyze options for accelerating project time by considering additional costs that may arise. Microsoft Project software is utilized to identify the critical path, allowing project managers to focus on activities with the greatest impact on the overall schedule. The results indicate that the critical path of the project includes activities such as mobilization and demobilization, administration and reporting, work safety, and repair of the old grain silo. By using TCTO, the project completion time can be accelerated to 359 days from 455 days, reducing the duration by 21.10%.
Co-Authors Agata Maria Orleans Alves Aki’ Suprapto Budi Witjaksana Esti Wulandari Ichsan Yanuansyah Pramadha Jamiludin Jamiludin Maria Junita Klau Mochamad Ranoe Asmoro Oskar Ezra Alan Muin Pandji Thoha S. Balido Sajiyo Sajiyo Subkhan Ariyanto Wahyu Pratondo W Zaiful Muqaddas