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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) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Jurnal Teknik Indonesia Jurnal Spesialis Teknik Sipil (JSpTS) 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Transportation Other

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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.
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.
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 Kogoya, Desmin Mawardianto, Hayadi Agus Muhammadun, Haris Oetomo, Wateno Prasetyo, Baskoro Adhi Pujiyono, Sugeng 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