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All Journal WIDYA TEKNIKA The Spirit of Society Journal : International Journal of Society Development and Engagement International Journal of Social Service and Research JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) International Journal Science and Technology (IJST) TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) INJURITY: Journal of Interdisciplinary Studies Jurnal Teknik Indonesia Jurnal Spesialis Teknik Sipil (JSpTS) Enrichment: Journal of Multidisciplinary Research and Development Advances In Social Humanities Research
Laksono Djoko Nugroho
Jurusan Teknik Sipil - Universitas Bojonegoro Jawa Timur
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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation Other

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Time and Cost Control Analysis of the Construction of the Joyoboyo Zoo Intermodal Terminal Pedestrian Tunnel Using the Critical Path Method Sartiyana, I Ktut Riagung; Nugroho, Laksono Djoko; Muhammadun, Haris
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 1 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i1.1566

Abstract

This study aims to analyse the effectiveness of Critical Path Method (CPM) in controlling the time and cost of the Pedestrian Tunnel construction project connecting Joyoboyo Intermodal Terminal with Surabaya Zoo. This project experienced various obstacles such as social conflicts, utility handling, and cross-agency coordination, resulting in delays in implementation. The research used a qualitative approach with primary data in the form of field observations and secondary data from project documents such as schedules, weekly reports, and cost budget plans (RAB). The analysis technique involved identifying the critical path, calculating the activity time, and evaluating the impact of delays on the project schedule. The results showed that the application of CPM was able to identify the critical path that had a direct impact on the project completion time. By knowing which activities have no float time, resource management can be optimised to reduce delays. However, the change in tunnel length from 156 metres to 172 metres affected the total project cost, although the implementation cost on the critical path was maintained.
Road Handling Priority Analysis Using Provincial/District Roads Management System Application and Analytical Hierarchy Process Method Farida, Nur Aini; Nugroho, Laksono Djoko; Muhammadun, Haris
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 1 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i1.1567

Abstract

This study aims to determine the priority of road handling in East Java Province by integrating the Provincial/District Roads Management System (PKRMS) application and the Analytical Hierarchy Process (AHP) method. Road condition data is obtained from PKRMS, including the physical condition of the road, traffic volume, and other parameters. The main criteria used in the AHP analysis are road condition, volume capacity ratio (VCR), connectivity, land use and priority areas of East Java Province. Each criterion was assessed and weighted based on its level of importance to produce road handling priorities.  The results showed that the integration of PKRMS and AHP was able to produce a more accurate order of road handling priorities in accordance with strategic needs. In the UPT PJJ Surabaya Road Section, road improvement priorities are arranged based on the Triggered Priority Index (TPI) value obtained from the combined analysis. This research also provides cost estimates for each road section, which helps with more efficient budget planning.  With this approach, it is expected that road management in East Java Province can be carried out more effectively, support inter-regional connectivity, and have a positive impact on economic growth.
Road Infrastructure Condition Analysis in Terms of Road Quality in Bengkulu City Pujiyono, Sugeng; Nugroho, Laksono Djoko; Muhammadun, Haris
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 1 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i1.1589

Abstract

The purpose of this research is to explain the analysis of road infrastructure conditions, in terms of road quality in Bengkulu City. The research method uses descriptive with qualitative approach, Research Subjects, are people and government institutions, key informants are all people or officials related to road infrastructure policy makers, traffic density and road quality, such as traffic police, transportation department, PUPR department, BPS Bengkulu City.  The results of the study explain that the level of traffic density in Bengkulu City is categorized as moderate (26 vehicles / km), the population density of Bengkulu City is known to be categorized as moderate, in accordance with the demographic situation (population density) calculated per square kilometer (Km²) in 2024 is 2,600 people / km², the quality of roads in Bengkulu City is well qualified, although there are several road sections that experience cracking. The occurrence of road cracks is found on 15 (fifteen) road sections amounting to 2.340%. The data shows that cracking does not significantly reduce road quality as there are still 97.660% of roads with good quality.
Analysis of the Probability of Successful Completion Time of the Penganten-Ngampal Road Reconstruction Project Using the PERT Method Al-Putro, Akmal Puguh; Nugroho, Laksono Djoko; Muhammadun, Haris
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 1 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i1.1598

Abstract

Infrastructure project delays are often a major challenge in the construction industry, including the Penganten - Ngampal Road Reconstruction project which experienced a 50-day delay from the initial target. This problem is caused by the uncertainty of external factors such as weather and limited resources. This research aims to calculate the probability of success of project completion time using quantitative descriptive method with Program Evaluation and Review Technique (PERT) approach. This method involves three estimates, namely optimistic, most likely, and pessimistic times to evaluate the average duration and critical path of the project. The data used consisted of project reports, field observations, and calculations using POM-QM software. The analysis shows that the project critical path consists of activities A, C, D, E, and F with a total duration of 60 days. The probability of completing the project within 60 days reached 98.21%, showing the effectiveness of the PERT method in managing time uncertainty.
Analysis of Clean Water Services in Dili City Based on Service Ratio Gomes, Orlando; Wulandari, Esti; Nugroho, Laksono Djoko
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 1 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i1.1602

Abstract

Adequate availability of clean water is an essential basic need for urban communities, including in Dili City, the capital of Timor Leste, as clean water supports health, hygiene, and various economic activities. However, Dili City faces a number of challenges in providing optimal clean water supply, such as rapid population growth, uncontrolled urbanization, inadequate infrastructure, and a distribution leakage rate of up to 30%, which causes difficulties in accessing clean water for some communities. This study aims to analyze the demand and availability of clean water in Dili City, and calculate the ratio of clean water services based on existing data, using a positivistic approach and theoretical-analytical and empirical-analytical methods. The results show that the demand for clean water in Dili City reaches 129,060 liters per second, with the highest production capacity in Comoro Village, but the distribution of clean water services is not evenly distributed. Becora Village has the highest service ratio, while Balibar Village shows a low ratio.
Time Control Analysis of the Construction of the Joyoboyo Intermodal Terminal Pedestrian Tunnel to the Surabaya Zoo Sartiyana, I Ktut Riagung; Nugroho, Laksono Djoko; Muhammadun, Haris
JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS Vol. 4 No. 2 (2025): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/jhssb.v4i2.1565

Abstract

The primary objective of this research is to examine the timeline for the construction of a pedestrian tunnel connecting the Joyoboyo Intermodal Terminal (TIJ) with the Surabaya Zoo (KBS). The construction of this tunnel is considered a crucial project aimed at enhancing accessibility and alleviating congestion along the Joyoboyo road. The estimated cost for this project is Rp 31,996,921,529.00 and it is scheduled to be completed within 135 calendar days. The results showed that the main factors of project delays were due to delays in the procurement of 40cm diameter piles, interference due to inundation due to undetected PDAM pipes. Using the CPM method, the identification of the critical trajectory enabled the optimisation of the project duration and reduced the risk of delays. In addition, incremental cost analysis showed the relationship between time acceleration and increased project cost. By identifying key factors causing delays and implementing strategic planning methodologies such as the CPM, the project was able to enhance efficiency and mitigate potential setbacks. Furthermore, the study shed light on the economic implications of time acceleration, emphasizing the importance of balancing speed with cost considerations in construction projects.
Analysis of Cost and Time Performance for Rehabilitation of Ws Brantas Retention Basin Using the Earned Value Method Purbo, Atma Djendra; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 1 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i1.271

Abstract

This research analyzes the cost and time performance of the WS Brantas reservoir rehabilitation project using the Earned Value method, addressing challenges such as cost overruns and schedule delays. The objectives include identifying cost and schedule deviations through the Schedule Performance Index (SPI) and Cost Performance Index (CPI) indicators, and evaluating the method's effectiveness in enhancing project management efficiency. Employing a qualitative descriptive approach, data were collected from nine project sites across Jombang, Tulungagung, and Blitar Regencies over six months, utilizing MS Project 2016 for analysis. Findings reveal significant deviations, with projects like Embung Kerjen incurring additional costs of Rp15,816,784 and an SPI of 0.66. The leading causes of delays included terrain constraints, material delays, and changes in work volume. The study underscores the importance of the Earned Value method as a standardization tool for project supervision, suggesting that its integration with project management technology can improve accountability and efficiency in budget use. This research provides valuable insights for academics and practitioners, offering practical solutions to common project management challenges and assisting government stakeholders in enhancing project supervision standards. By demonstrating the applicability of the Earned Value method in a government context, this study contributes to the development of effective infrastructure management strategies in Indonesia.
Time and Cost Control Analysis of Disaster Emergency Response Handling Project Construction in Mojokerto District Using Critical Path Method Nurrahmat, Ean Fadhillah; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 1 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i1.331

Abstract

Landslides along the Sumber Pasinan River in Mojokerto Regency, East Java, pose significant risks due to soil erosion and increased flooding during the rainy season. This study aims to analyze the acceleration of construction for a disaster emergency response project using the Critical Path Method (CPM) to minimize time and costs. Employing a quantitative research approach, primary data was gathered through direct observations at the project site, complemented by secondary data from relevant literature and project documents. The findings indicate that the implementation period was successfully reduced from 71 working days to 47 days, achieving a time acceleration of 24 days. This required the addition of 11 workers for the critical task of installing river stone masonry, which constituted 70.16% of the project's workload. The application of CPM proved effective in managing time and resources efficiently. The implications of this research highlight the importance of employing structured project management methodologies in disaster response construction projects. By demonstrating the effectiveness of CPM in accelerating project timelines while controlling costs, this study provides a valuable reference for future projects facing similar challenges. It also opens avenues for further research into the long-term impacts of workforce augmentation on project quality and cost-effectiveness in disaster management contexts.
Analysis of Delays in Construction Time of the Banjarsari Water Gate Project, Sidoarjo District Using Critical Path Method Nopriyanto, Dwi Erry; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 1 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i1.334

Abstract

The Banjarsari sluice gate, located on the Sidoarjo district's shipping river, faces various challenges that can affect its performance. These challenges include sedimentation, damage to building structures, and decreased water quality due to domestic and industrial waste. The implementation of the Banjarsari Water Gate maintenance project, especially the floor work, experienced seepage at the bottom of the water gate floor, resulting in structural failure of the water gate building. CPM method duration planning is a recommendation in choosing from the many methods available, because there is a calculation of the earliest time the project starts, the latest time the project begins, the earliest time completed, and the latest time completed, so that the time lag of all activities can be known. Analyze the acceleration of work duration by adding workers to the work on the critical path. The purpose of this research is to analyze the length of time required by the CPM (Critical Path Method) method for the work of the Banjarsari floodgate. In this study, the time analysis uses the CPM (Critical Path Method) method and is assisted by Microsoft Project 2021 Software. The analysis results obtained work through the critical path, namely demolition work and cyclope concrete casting, and obtained the results of the duration of work on the Banjarsari floodgate work after crashing to 66 working days from the initial duration of 72 working days.
Analysis of Delays in the Construction Project of the Pumping House in the Sumenep District Using the Critical Path Method John, Jenodius Aldino; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 1 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i1.335

Abstract

Delays in construction projects pose significant challenges, particularly in remote areas like the Sumenep District. This research analyzed the pump house construction project delays using the Critical Path Method (CPM) to identify the primary factors causing delays, including material supply issues and labor shortages. A qualitative descriptive approach was employed, involving in-depth interviews with project stakeholders and analysis of project documents, including weekly reports and schedules. The findings indicated that the project experienced an average delay of two weeks, primarily due to delays in material supply from Surabaya and concurrent labor shortages caused by multiple simultaneous projects. To address these challenges, the study proposed solutions such as strengthening logistics coordination with local suppliers, increasing the workforce on critical tasks, and utilizing additional heavy equipment. The implications of this research highlight the importance of effective time and resource management in construction projects, particularly in remote locations. Applying the CPM method, this study identifies the root causes of delays and provides practical strategies to enhance project efficiency and reduce costs. This research contributes to the existing literature on construction management in Indonesia, emphasizing the need for adaptive approaches tailored to local conditions.
Co-Authors Abid, Luthfil Al-Putro, Akmal Puguh Classinta ARD, Bella Astrina Esti Wulandari Evita Fitrianis Hidiyati Farida, Nur Aini Fathurokman, Hasan Alif Gode, Dicky Gomes, Orlando Haris Muhammadun Hidiyati, Evita Fitrianis Hudyantoro, Hudyantoro Ikko Bagus Ismanto Irwansyah Digma Pratama Jarwoto, Jarwoto John, Jenodius Aldino Kogoya, Desmin Mawardianto, Hayadi Agus Maya Yusnita Muhammadun, Haris N. Nazaruddin Nopriyanto, Dwi Erry Nurrahmat, Ean Fadhillah Oetomo, Wateno Prasetyo, Baskoro Adhi Pujiyono, Sugeng Purbo, Atma Djendra Rahayuningsih, Titin Rahman, Medio Duddian Wahyu Ratuinsani, Tati Mushalihati Sajiyo Sajiyo, Sajiyo Sartiyana, I Ktut Riagung Septoraharjo, Eko Rony Setiyo, Anugrah Dwi Subandriyo, Putut Suwito Suwito Wulandari , Esti