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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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EVALUATION OF PROJECT COST AND TIME USING EARNED VALUE APPROACH: A CASE OF MILITARY INFRASTRUCTURE PROJECT Nazaruddin, Nazaruddin; Nugroho, Laksono Djoko; Muhammadun, Haris
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 4 No. 1 (2025): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v4i1.1390

Abstract

This research aims to optimize the performance of construction projects at Yohanis Kapiyau Airbase so that the work can be completed on time, meet quality standards, and in accordance with the predetermined budget. This research addresses key questions regarding the evaluation of project cost and time control, specifically examining project cost performance through Cost Variance and Cost Performance Index (CPI) indicators, as well as project time performance using Schedule Variance (SV) and Schedule Performance Indices (SPI) indicators. The implementation of the Earned Value Management (EVM) method has proven its effectiveness as an analytical instrument that integrates cost and cost dimensions comprehensively. Through the comprehensive analysis that has been conducted, the method successfully identified with precision that the fundamental challenge of the project lies in the aspect of time management, while cost management shows excellent efficiency. It can be concluded that the achievement of excellent cost efficiency has a positive impact on the overall project performance. Based on the results of the comprehensive evaluation, several strategic recommendations can be formulated for the optimization of project implementation in the future.
PROJECT COST ANALYSIS THROUGH EARNED VALUE METHOD ON THE INSTALLATION OF BAGGAGE HANDLING SYSTEM (BHS) PPUPG (PROJECT CASE STUDY AT SULTAN HASANUDIN INTERNATIONAL AIRPORT MAKASSAR) Pratama, Irwansyah Digma; Nugroho, Laksono Djoko; Muhammadun, Haris
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 4 No. 1 (2025): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v4i1.1391

Abstract

This research is aimed at analyzing the cost performance of the Ppupg Baggage Handling System (BHS) Installation project at Sultan Hasanudin Makassar International Airport. This research focuses on two key questions: (1) how to assess cost performance during monitoring using indicators such as Cost Variance and Cost Performance Index, and (2) what the estimated total project cost will be upon completion, specifically through the Estimated All Completion (EAC). The research is conducted from October Week 2 to the field in January 2025 which began in stages from research preparation, initial survey, literature review, data collection, proposal preparation, data analysis, and thesis preparation. The research was conducted in the form of observations, namely, the PPUPG baggage handling system installation project. The study was conducted using a multidisciplinary approach. The analysis of the EAC serves to enhance understanding of projected total project costs, allowing for better financial forecasting and budget management. The findings from this study can help practitioners optimize budgeting processes and improve project outcomes, thereby advancing the overall understanding of cost management in infrastructure projects. Future research can contribute to more effective cost management strategies and improved project performance outcomes by integrating findings from both CPM analysis and comprehensive literature.
Analisis Prediksi Potensi Akuifer dengan Metode Geolistrik Resistivitas Sounding (Studi Kasus di Kabupaten Mojokerto) Abid, Luthfil; Nugroho, Laksono Djoko; Sajiyo, Sajiyo
Jurnal Spesialis Teknik Sipil (JSpTS) Vol 6 No 1 (2025)
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.v6i1.131841

Abstract

Water usage from year to year continues to increase. It is caused by the growth of the population that is growing rapidly. This condition is inversely proportional to the increasingly limited availability of water sources. By because it's, required a study of potential water the soil in each area. The purpose of this study is nterpretation of the data resistivity geoelectric sounding using software IP2WIN to know the predictions of potential aquifers in the village of Sumberwuluh District of Dawarblandong Regency Mojokerto. Interpreting the data resistivity geoelectric sounding using software RES2DINV to know the predictions of potential aquifers in the village of Sumberwuluh District of Dawarblandong Regency Mojokerto. Evaluate the results of comparisons between IP2WIN and RES2DINV software. The method that is used in research this is the software IP2WIN and RES2DINV. Results of the study show that based on data processing IP2WIN software shows one layer of rock. Layers with apparent resistivity (ρ) = 68,5 Ω m, thickness (h) = 0,758 m and depth (d) = 0,758 m. With a depth of 0,758 m, it is predicted that only infiltration water and not potential as an aquifer. Based on data processing RES2DINV software shows a resistivity value of 1,75 - 35 Ω m. Resitivity value 1,75 – 4,12 Ω m is a layer with soil water content in blue contour color. Depth reaches 70.7 to 85.4 with a color contour of blue which is estimated to water the ground and potentially as aquifers. Evaluation of the results of the comparison processing of the data between software IP2WIN with RES2DINV indicate that the software RES2DINV much better in predicting the potential of the aquifer.
Analysis of Urban Drainage System Based on Ponorogo City Spatial Planning Setiyo, Anugrah Dwi; Nugroho, Laksono Djoko; Wulandari, Esti
Jurnal Teknik Indonesia Vol. 4 No. 3 (2025): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v3i4.754

Abstract

The infrastructure problem in Ponorogo Regency is characterised by flooding in urban areas, which is attributable to deficiencies in the drainage system. The regions of Ponorogo City that are most susceptible to flooding include Jl. Pramuka, Jl. Jaksa Agung Suprapto, Jl. Bhayangkara, and Jl. Kbp Duriyat. The findings of the distribution suitability calculations for Ponorogo Rainfall Station over a period of 20 years demonstrate the validity of the calculations performed using the Log Pearson Type III method. Subsequently, the Normality Test was conducted in accordance with the Smirnov-Kolmogorov And Chi-Squared criteria. The Log Pearson Type III Method value was deemed to be acceptable. Consequently, the Log Pearson Type III Method was selected as the rainfall design based on a 10-year return period of 111,6819 mm. The results of the 10-year flood discharge analysis, with rational calculations for Jl. Pramuka Kanan at 0,879 m³/s, Jl. Pramuka Kiri at 0,949 m³/s, Jl. Jaksa Agung Suprapto Kanan at 0,662 m³/s, Jl. Suprapto Kiri at 0,722 m³/s, Jalan Bhayangkara Kanan at 0,520 m³/s, Jalan Bhayangkara Kiri at 0,654 m³/s, Jalan Kbp Duriyat Kanan at 0,574 m³/s, and Jalan Kbp Duriyat Kiri at 0,652 m³/s were observed. The calculation results indicate that the 10-year return period calculation discharge in the existing drainage channel exceeds the capacity, necessitating repairs. The repair was executed using U-Ditch 100 cm×100 cm for Jl. Pramuka Kanan, Jl. Pramuka Kiri, Jl. Jaksa Agung Suprapto Kanan, and Jl. Jaksa Agung Suprapto Kiri. In addition to the enhancements that have been made by utilising U-Ditch 80 cm×80 cm for Jl. Bhayangkara Kanan, Jl. Bhayangkara Kiri, Jl. KBP Duriyat Kanan and Jl. KBP Duriyat Kiri, further developments are anticipated.
Analysis of the Feasibility of Investing in Taman Melati Dinoyo Apartments, Malang City Classinta Ard, Bella Astrina; Muhammadun, Haris; Nugroho, Laksono Djoko
Advances In Social Humanities Research Vol. 1 No. 12 (2023): ADVANCES in Social Humanities Research
Publisher : Sahabat Publikasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46799/adv.v1i12.157

Abstract

This research aims to investigate the investment potential of Taman Melati Dinoyo Apartments, Malang City as a promising form of property. Through an economic and property market analysis approach, this research explores the factors that influence investment decisions and the impact on local economic growth. An in-depth literature study was used to understand property investment trends and apartment market characteristics. The data analysis method includes collecting primary data through interviews with property developers and other related parties. Additionally, secondary data from financial institutions, local governments and other sources were used to validate the findings. The results of this research identify the main factors that influence apartment investment such as property prices, construction costs, occupancy rates and interest rates. Apart from that, this research can also be a reference for project developers to identify potential risks and stimulate effective mitigation strategies by using investment capital that is used in a ratio of 30% own capital and 70% loans.The analytical method used to analyze this research is data collection, data processing, income analysis, cash flow and reviewing financial aspects using the NPV, IRR, BCR, Payback Period method. The final stage of work is analyzing the sensitivity of investment costs to investment costs, Sensitivity Analysis rates. The results of the analysis of the Taman Melati Dinoyo Apartment project, Malang City, are that it has an NJOP value of Rp. 418,462,5800,000,- and was declared financially feasible with a positive NPV value of Rp. 55,585,691,096,- IRR is worth – 8.99% which is less than MARR, namely 7.79%, BCR <1, namely 0.7997 and the payback period is IDR, 186,959,656,- in year 2, sensitivity analysis shows the project an apartment is declared feasible if the increase in investment reaches 38% and the decrease in income is 20%.  
Analysis of Clean Water Demand in Watudiran Village, Sikka Regency Gode, Dicky; Nugroho, Laksono Djoko; Wulandari , Esti
Jurnal Teknik Indonesia Vol. 4 No. 4 (2025): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v3i4.792

Abstract

Watudiran Village in Sikka Regency is a semi-arid area experiencing limited access to clean water due to the absence of an adequate piped water network. To develop an effective and sustainable clean water pipeline project, various baseline data are needed to support technical planning and guide appropriate investment decisions. This study aims to analyze clean water demand based on projected population growth and domestic water consumption standards. The method involves population projection using a geometric growth model and water demand estimation based on government standards, assuming a daily per capita consumption of 60 liters per person. The analysis covers the period from 2024 to 2039. The results show that the population of Watudiran Village is projected to increase from 1,871 people in 2024 to 2,559 people in 2039. Based on this assumption, the average daily water demand will reach 153,522 liters by the end of the projection period. The peak flow is estimated at 3.56 liters per second, using a peak factor of 2.0. These findings provide a quantitative foundation for designing the village’s clean water distribution system and serve as a key reference for rural infrastructure development planning.
Analysis of Determining Road Damage Repair Methods Based on Availability of Budget on the Road Segment of East Java Province Jarwoto, Jarwoto; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 12 (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.v2i12.317

Abstract

Pavement damage on the Maospati - Magetan - Cemorosewu Road is severe, with issues such as potholes, surface deformation, peeling asphalt layers, and structural deflections due to heavy vehicle loads. These conditions pose significant risks, particularly during the rainy season, leading to hazardous driving conditions. This research aims to analyze the extent of road surface damage and recommend appropriate maintenance solutions using the PKRMS (Provincial/District Road Management System) method and the Bina Marga method. Data were collected through field surveys and official agency reports to assess road conditions. The findings indicate that the overall road condition is relatively good, with low levels of damage. Based on the Bina Marga and PKRMS assessments, routine maintenance is the most suitable repair strategy to prevent further deterioration and enhance road safety. The research underscores the importance of proactive and regular road maintenance planning to ensure long-term road durability. Future research should explore cost optimization strategies and predictive maintenance models to improve infrastructure sustainability.
Performance Analysis and Operation and Maintenance Cost Requirements for Rapak Di Drainage Yusnita, Maya; Wulandari, Esti; Nugroho, Laksono Djoko
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 12 (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.v2i12.319

Abstract

Inadequate drainage infrastructure often leads to waterlogging during rainfall, emphasizing the need for urgent repairs. This study assesses the performance condition of the Rapak Dalam Drainage system using a quantitative and qualitative approach, including field observations, direct measurements, and hydrological data analysis. The findings indicate that the drainage system is rated at a "Good" performance level, with a functional capability of 80.56%. Although the system effectively manages water in most areas, certain components require immediate repairs to maintain optimal functionality. To enhance drainage performance, this study recommends routine inspections, timely maintenance, and sediment management to prevent blockages. Additionally, upgrading drainage infrastructure, optimizing water flow through improved design, and implementing community-based maintenance programs are suggested to ensure long-term efficiency. These measures will help mitigate flooding risks and improve urban water management in Samarinda.
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