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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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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 Classinta ARD, Bella Astrina Esti Wulandari Gode, Dicky Haris Muhammadun Hidiyati, Evita Fitrianis Hudyantoro, Hudyantoro Ikko Bagus Ismanto Kogoya, Desmin Muhammadun, Haris Oetomo, Wateno Rahman, Medio Duddian Wahyu Sajiyo Sajiyo, Sajiyo Septoraharjo, Eko Rony Setiyo, Anugrah Dwi Subandriyo, Putut Suwito Suwito Wulandari , Esti