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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) COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat International Journal Science and Technology (IJST) 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 Chemical Engineering, Chemistry & Bioengineering 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 Public Health Social Sciences Transportation Other

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IMPROVING MOBILITY IN KEDIRI CITY WITH MKJI ANALYSIS 1997 AND TIME SLICE AT SIMPANG EMPAT DHOHO PLAZA Hidiyati, Evita Fitrianis; Nugroho, Laksono Djoko; Haris Muhammadun
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1110

Abstract

The city of Kediri, as the third largest city in East Java, has cultural heritage, history and natural beauty that attracts visitors from various regions. However, population growth and motorized vehicles cause traffic jams. Signalized intersections, which are a solution to control intersection conflicts, require knowledge of intersection saturation flows to plan efficient traffic management. Analysis methods such as MKJI 1997 and Time Slice with Vehicle Operating Cost (BOK) calculations help design effective solutions. This research shows that adjusting cycle times, increasing effective width, and optimizing signals can improve transportation system performance and reduce congestion in Kediri City. Cycle time analysis taking into account factors such as vehicle type, traffic volume, and vehicle speed resulted in a cycle time of 90.7 seconds. The impact can be seen in the Degree of Saturation (DS) at various intersection arms, with service variations from E to F. Research also shows a decrease in waiting time/queuing for signal lights from 135 seconds to 118 seconds, which results in a decrease in the degree of saturation (DS) and changes in time cycle. The use of Smart Traffic Lights and traffic engineering, such as immediate left turns on the east arm and additional signs, is required. Evaluation of congestion cost efficiency shows that changing the value of side barriers can save Rp. 22,679,183 in the next five years.
ANALYSIS OF INVESTMENT SENDITIVITY IN TAMAN MELATI DINOYO APARTMENT, MALANG CITY Classinta ARD, Bella Astrina; Muhammadun, Haris; Nugroho, Laksono Djoko
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.v3i2.1017

Abstract

This research investigates the investment potential of Taman Melati Dinoyo Apartment in Malang City, focusing on economic and property market analysis. This research identifies the main factors affecting apartment investment, including property prices, construction costs, occupancy rates, and interest rates. Through a comprehensive literature review and primary data collection through interviews, the research provides insights for property developers, highlighting potential risks and effective mitigation strategies. The proposed investment structure involves a 30% equity and 70% borrowing ratio. Analysis methods such as NPV, IRR, BCR, and Payback Period are used for financial assessment. The Taman Melati Dinoyo Apartment Project in Malang City is financially feasible, with a NJOP value of Rp. 418,462,580,000. The NPV value is positive at Rp. 55,585,691,096, although the IRR is slightly below MARR at -8.99%. The BCR is 0.7997, indicating the project is less than 1, and the payback period is reached in the second year at IDR 186,959,656. Sensitivity analysis showed feasibility even with an increase in investment by 38% and a decrease in revenue by 20%
Analisis Prediksi Kondisi Kekerasan Jalan Raya menggunakan Aplikasi IRI untuk Penanganan Jalan (Studi Kasus: Ruas Jalan Nasional Kota Jalan Nasional Kota Ruas, Gresik-Sadang) Kogoya, Desmin; Nugroho, Laksono Djoko; Oetomo, Wateno
Jurnal Spesialis Teknik Sipil (JSpTS) Vol 5 No 2 (2024)
Publisher : Magister Teknik Sipil, Fakultas Teknik, Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/jspts.v5i2.12065

Abstract

Road pavement conditions will overcome the decline in service levels over time. The decline in the level of road services is characterized by the occurrence of damage to the structure of the pavement layer of the road and left in a long period of time it will be able to renew the level of the layer of security that can increase security, comfort, and smoothness in crossing. The purpose of this study is to analyze the influence of traffic, pavement structure and CBR on the value of road IRI and estimation of road pavement conditions in the next 10 years. The data used in this research are traffic load, CBR, rainfall and road pavement structure. The analysis was carried out using a method developed by IRI (International Roughness Index) to predict road conditions. Data collection was carried out by surveying road damage using the ROADROID application and (RCI) the Road Condition Index as preliminary data. This research will be applied to data collected from the national road network in East Java province, specifically the Bts national road section. Gresik City - Sadang. To facilitate analysis, the road segment is divided into 3 segments with the length of each km segment starting from Km 20 to Km 40. The results of data analysis show an increase in traffic load of 31% will result in an increase in IRI value of 0.061 m / km per year, a structural value of 11.32% resulting in an increase in IRI of 0.034 m / km per growth, based on a CBR of 38% resulting in an increase IRI value of 0.017 m / km per year. The predicted results of road pavement conditions on Km 40, 20 and 20 sections are minor damaged roads, for Km 20, 40 routine maintenance sections.
FEASIBILITY ANALYSIS OF A BATCHING PLANT INVESTMENT FOR THE KEDIRI-TULUNGAGUNG TOLL ROAD PROJECT Suwito, Suwito; Nugroho, Laksono Djoko; Muhammadun, Haris
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.v5i1.1183

Abstract

This study evaluates the feasibility of establishing a batching plant for the Kediri-Tulungagung toll road construction, specifically for the Dhoho Kediris Airport toll access, section 2. Observations were conducted with key stakeholders at the project site, including concrete production costs, operational schedules, and potential bottlenecks. The data was analyzed using a quantitative approach with statistical software, focusing on investment feasibility indicators such as Net Present Value (NPV), Internal Rate of Return (IRR), and Payback Period (Rohman & Husin, 2024). The results of the analysis show that the NPV is IDR5,599,938,029.34 with IRR reaching 82.71%, far above the Minimum Attractive Ratio (MARR) of 12%. In addition, the efficiency of concrete distribution time to the site improved daily work productivity. This study provides critical insights into the logistical, economic, and operational aspects of setting up a batchesing plant, which is essential for ensuring the efficient production of concrete required for the construction project. The findings can serve as a valuable reference for future projects in similar contexts, enhancing the planning and execution of toll roads in Indonesia.
Risk Analysis and Risk Response in the Implementation of the Construction of a Special Oncology Hospital in Bojonegoro Rahayuningsih, Titin; 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.v4i1.1563

Abstract

This study aims to identify risks, conduct risk analysis with the severity index method, and determine responses to risks that occur in the implementation of the Bojonegoro Regency Oncology Special Hospital Phase 2 construction work. From the results of risk identification, there are 31 risks grouped into 8 variables. After analysing the data with the severity index method, which is a technique used in calculating the probability value and also the impact, the results obtained were 3 risks in the medium category and 2 risks in the high category. The 5 dominant risks require a risk response. Risk responses to reduce the negative impact of project delays, especially for risks in the high category, include the risk of uncertain weather by planning the scheduling of large works such as casting so that they are not carried out during the rainy season. The risk of unavailability of labour in the field by cooperating with other subcontractors to help complete certain parts of the project.
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.
Co-Authors Abid, Luthfil Al-Putro, Akmal Puguh Classinta ARD, Bella Astrina Esti Wulandari Evita Fitrianis Hidiyati Farida, Nur Aini 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 Prayogo, Bela Pujiyono, Sugeng Purbo, Atma Djendra Rahayuningsih, Titin Rahman, Medio Duddian Wahyu Ratuinsani, Tati Mushalihati Rumihin, Ony Frengky Sajiyo Sajiyo, Sajiyo Sartiyana, I Ktut Riagung Septoraharjo, Eko Rony Setiyo, Anugrah Dwi Subandriyo, Putut Subroto, Tisno Suwito Suwito Wulandari , Esti