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All Journal Jurnal Teknik Sipil dan Perencanaan Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Syntax Literate: Jurnal Ilmiah Indonesia Journal of Green Science and Technology Jurnal Sosial dan Teknologi Journal Of World Science Jurnal Locus Penelitian dan Pengabdian INJURITY: Journal of Interdisciplinary Studies Indonesian Journal of Advanced Research (IJAR) Jurnal Civil Engineering Study Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan International Journal of Mechanical, Electrical and Civil Engineering Journal of Green Science and Technology
Ohan Farhan
Fakultas Teknik Universitas Swadaya Gunung Jati Cirebon Jawa Barat, Indonesia
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences 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 Public Health Social Sciences Transportation Other

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Pemodelan Banjir di Wilayah Pedesaan Kabupaten Cirebon dengan Menggunakan HEC-RAS dan ArcGIS Ohan Farhan; Mira Lestira Hariani; Cecep Priyono
Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Vol 12 No 2 (2024): Jurnal Konstruksi dan Infrastruktur Vol 12 No.2 : Oktober 2024
Publisher : Civil Engineering Department, Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jki.v12i2.9933

Abstract

Flood modeling is crucial as part of disaster mitigation efforts in a region. This study aims to determine the extent and depth of flood inundation using ArcGIS 10.8 and analyze flood modeling using HEC-RAS 6.3.1 to predict potential flooding in rural areas of Cirebon District. Rainfall analysis was conducted using the Thiessen Polygon method based on ten years of maximum rainfall data, while flood analysis was carried out using the Nakayasu Synthetic Unit Hydrograph (HSS) method. The study results indicate that rice fields were the most affected area, covering approximately 45.95 hectares with an inundation depth ranging from 1 to 2 meters. To mitigate flood impacts, an increase in embankment height by 1.5 meters is recommended at several critical points. Keywords : Flood mitigation, Flood Modelling, HEC-RAS, ArcGIS, HSS Nakayasu
Analisis Kebutuhan Air Irigasi Dengan Metode Kp-01 dan Aplikasi Corpwat 8.0 di Wilayah Indramayu Bagian Barat Aini, Syafira Luthfi; Nur S, Elang Ramdhan; Farhan, Ohan
INJURITY: Journal of Interdisciplinary Studies Vol. 4 No. 5 (2025): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v4i5.1445

Abstract

This study analyzed the irrigation water needs in the western region of Indramayu, Indonesia, using the KP-01 method and the CROPWAT 8.0 application. The main focus of this study is the importance of effective water management in agriculture, especially in the midst of increasing demand and climate change. Climatological data, soil characteristics, and crop information are collected to estimate irrigation needs. The results show that CROPWAT 8.0 is superior to the KP-01 method in terms of resource use efficiency, ease of use, flexibility, and reproducibility of results. CROPWAT 8.0 recorded the highest irrigation needs in January, while the KP-01 method recorded the highest in September. Although KP-01 provides more accurate and regulatory compliant water demand figures, CROPWAT 8.0 is more efficient for large-scale data processing. Daily evapotranspiration (ETo) variations ranged from 2.6 mm/day to 4.0 mm/day, with the highest ETo occurring in December. The highest irrigation water demand was recorded in September (1,850 ltr/second/ha) and the lowest in June (0,199 ltr/second/ha). The ETo calculation using CROPWAT shows an annual average value of 4.84 mm/day, with fluctuations affected by temperature, humidity, and solar radiation. The findings aim to optimize water resource management and increase agricultural productivity in the region. The selection of the right method depends on the specific needs and applicable regulations.
Road Damage Analysis On Inter-City Roads Using Pavement Condition Index (PCI) Approach In West Java Indonesia Hariani, Mira Lestira; Taufik, Ahmad; Suparman, Suparman; Kosasih, Agus; Farhan, Ohan
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 4 No. 7 (2025): INJURITY: Journal of Interdisciplinary Studies
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v4i7.1464

Abstract

Poor road infrastructure conditions have a significant impact on transportation efficiency, user safety, and logistics costs, especially in areas with tropical climates and heavy vehicle traffic such as in West Java. This study aims to evaluate the condition of road pavement on the Jangga–Cikamurang Road section in Indramayu Regency using the Pavement Condition Index (PCI) method. The survey was conducted visually along 1 kilometer of road, which was divided into 10 segments of 100 meters each. Observations included identification of the type of damage, severity, and extent of damage in each segment. The results of the study showed that the most dominant types of damage were alligator cracking (42.47%) and depression (33.63%) with high severity. The PCI values obtained varied between 6 and 78, with 60% of segments categorized as poor to failed, and only 10% in satisfactory condition. These findings indicate that most road sections are in unserviceable conditions and require structural handling. Based on the PCI value classification, reconstruction actions are recommended for segments with PCI < 55, overlay and structural maintenance for PCI 55–70, and preventive maintenance for PCI > 70. This study confirms the importance of implementing PCI as a technical decision-making tool in sustainable road maintenance planning.
Analysis of Precast Concrete Construction Cost Comparison with Conventional Concrete in Building (Case Study of A1 & A2 Building) Sartikaasih Bhayangkara Hospital Bandung) Wahidan, Fikri; Rahayu, Pony; Ramadhan, Erik Rizky; Farhan, Ohan
Indonesian Journal of Advanced Research Vol. 4 No. 7 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijar.v4i7.14976

Abstract

This study discusses the comparison of cost and time efficiency between precast and conventional concrete systems in the structural work of building construction. The research adopts a quantitative comparative approach on two segments of the Sartikaasih Bhayangkara Hospital project in Bandung. The BoQ calculation results show that the precast system incurred lower total costs, amounting to IDR 17.6 billion (A1) and IDR 12.74 billion (A2), compared to the conventional system with IDR 19.86 billion (A1) and IDR 14.29 billion (A2). In terms of time, the precast system demonstrated significant efficiency, with savings of 65.02% on A1 and 21.43% on (A2). This efficiency contributes to the reduction of indirect costs and the risk of project delays. These findings indicate that the precast system can serve as a more economical and efficient alternative for building construction projects.
Comparative Analysis of Construction Costs for Concrete and Steel: A Case Study of the Modern Islamic Boarding School an – Nizam Purwokerto Hanapi, Fajri; Rafli, Mochamad; Jati, Muhamad Alfito; Farhan, Ohan
Indonesian Journal of Advanced Research Vol. 4 No. 7 (2025): July 2025
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijar.v4i7.15025

Abstract

The selection of structural materials plays a crucial role in determining cost efficiency and construction time in building construction projects. This study aims to analyze and compare the construction costs of reinforced concrete and steel structures in the construction of the Modern Islamic Boarding School An-Nizam in Purwokerto. A quantitative comparative method was used by calculating the volume of work, construction cost estimates (RAB), and project duration for both types of structures. The analysis focused on main structural elements such as columns and beams, based on detailed drawings, unit price standards, and project technical data. Based on the calculations and analysis of this project, it can be concluded that the total construction cost for the reinforced concrete structure is Rp 8,983,363,148.58. Meanwhile, the total construction cost for the steel structure is Rp 8,445,489,989.60. The duration of the steel construction work is 19-20 weeks, and the duration of the concrete structure construction work is 25-30 weeks. Therefore, it can be concluded that from this case study, the total cost required for concrete structure construction is cheaper than steel structure construction by a difference of Rp 537,873,158.98. However, the duration of steel structure construction is faster than concrete construction, with a difference of 6-10 weeks.
Analysis of Park and Ride Location Determination in Urban Areas Using Analytical Hierarchy Process (AHP) Casuya, Casuya; Faisal, Muhamad; Saifutdin, Muchammad Arif; Hariani, Mira Lestira; Farhan, Ohan
Journal of World Science Vol. 4 No. 9 (2025): Journal of World Science
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jws.v4i9.1508

Abstract

The rapid growth of private vehicles in urban areas has caused various problems such as traffic congestion, increased air pollution, excessive fuel consumption, and decreased quality of life. The urgency of this research lies in the need for strategic solutions to reduce the use of private vehicles in the city center, one of which is through the construction of Park and Ride (PnR) facilities integrated with public transportation. The purpose of this research is to determine the strategic location of PnR facilities in Cirebon City to support a more sustainable urban transportation system. This research uses the Analytical Hierarchy Process (AHP) method involving ten main criteria, including parking lot capacity, supporting facilities, ease of access, transportation integration, intermodal connectivity, and development costs. Data was obtained through expert surveys and secondary data from relevant agencies. The results showed that the alun-alun kejaksan area is the most optimal location for the development of PnR facilities, followed by Kejaksan Station, Prujakan Station, and Harjamukti Terminal. This location is superior in terms of accessibility, land capacity, transportation mode integration, and proximity to community activity centers. These findings are expected to be a reference in planning and policy making for the development of urban transportation systems in Cirebon City.
Co-Authors Agus Kosasih, Agus Ahmad Mansubun Zamanudin Ahmad Taufik Aini, Syafira Luthfi Ainun Yusri Akbar Winasis Aldi Aldi Andi Gunawan Ardianti Agustina Arni Muslimah Handayani Widjaja Awliya Tribhuwana Awliya Tribhuwana Azriel Albani Syahrain Casuya, Casuya Cecep Priyono Derry Taddarus Dita Rosiyanah Fathur Rohman Fathur Rohman Fathur Rohman Feby Novela Gunawan Gunawan Gunawan Gunawan Haikal Abu Nidal Hanapi, Fajri Heri Mulyono Ibnu El Musayyab Jati, Muhamad Alfito Kelli Dwi Yusup Lulu Raudlatul Aulia Lumtunnanie, Annisa Martinus Agus S Mira Lestira Hariani Muhamad Faisal, Muhamad Novriani, Shinta Nur Azis Zain Nur Fieka Putri Nur S, Elang Ramdhan Rafli, Mochamad Rahayu, Pony Ramadhan, Erik Rizky Saifutdin, Muchammad Arif Saihul Anwar Sugiyanto, Martinus Agus Suparman Suparman Syahputra, M Reza Wahidan, Fikri Zaenal Muttaqin Zain, Nur Azis