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All Journal Sinergi Teknisia Jurnal Rekayasa Sipil Civil Engineering Journal The Spirit of Society Journal : International Journal of Society Development and Engagement IJEBD (International Journal Of Entrepreneurship And Business Development) IJTI (International Journal Of Transportation And Infrastructure) IJIEEB : International Journal of Integrated Education, Engineering and Business Proceeding of World Conference Journal of Applied Science, Engineering, Technology, and Education Jurnal Syntax Transformation NEUTRON : Research from all areas of the Civil Engineering International Journal of Engineering, Science and Information Technology Extrapolasi ARRUS Journal of Engineering and Technology Jurnal Profesi Insinyur Universitas Lampung Indonesian Journal of Multidisciplinary Science Journal of Social Research Indonesian Community Journal Jurnal Locus Penelitian dan Pengabdian Journal of Social Science Indonesian Journal of Construction Engineering and Sustainable Development Journal of Artificial Intelligence and Digital Business Eduvest - Journal of Universal Studies Communautaire: Journal of Community Service Journal of Educational Management Research IRA Jurnal Pengabdian Kepada Masyarakat Journal of Sustainable Innovation Engineering
Muhammad Isradi
Department Of Civil Engineering, Faculty Of Engineering, Universitas Mercu Buana
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy 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 Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Transportation Other

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Geometric Analysis of the Wantilan – Cipeundeuy Road Segment Aditya, Tandhang Penta; Trijayanti, Wiwin; Widyadhana, Gibran Arya; Isradi, Muhammad; Nabila, Nabila
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.5098

Abstract

The development of rural areas into sub-district regions in Subang Regency necessitates improvements in transportation infrastructure to support community mobility and agricultural product distribution. One important road segment that requires development is the Wantilan – Cipeundeuy Sub-district. This study aims to analyze the conformity of road geometric design based on the Road Geometric Design Guidelines (PDGJ, 2021), determine pavement layer thickness according to the Pavement Design Manual (MDP, 2024), and estimate construction cost requirements. The methods employed include primary and secondary data collection, geometric analysis, pavement design analysis, and cost estimation. Field data indicate that the 2 km road segment contains three main horizontal curves with a design speed of 80 km/h and a superelevation value of 6%. The calculation results show a curve radius of 252 meters with deflection angles ranging from 3,69˚ to 5,54˚, which comply with thw requirements of PDGJ 2021. The subgrade soil has a California Bearing Ratio (CBR) value of 6,5%, classified as medium bearing capacity soil. The pavement structure design consists of an HRS-BC surface layer, a 200 mm Class A aggregate base course, and a 200 mm Class A aggregate subbase course. The design life of the road is set at 12 years with an average annual rainfall of 1,500 – 1,800 mm. Based on the analysis results, the proposed geometric conditions and pavement design meet technical standards and are feasible to improve road user comfort and safety.
Geometric Analysis of the Subang Road Section Sta 0+000 – Sta 3+000, West Java Province Jais, Fadel Rafi Assyahkaran Putra; Yasir, Yasrizal; Setiawan, Deni; Isradi, Muhammad; Dermawan, Widodo Budi
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.5099

Abstract

Integrated road infrastructure planning is an important factor in ensuring traffic safety, comfort, and smoothness. This study aims to evaluate and redesign the technical aspects of the ±3 km Subang Road section in Subang Regency, West Java Province, with a focus on road geometric planning, flexible pavement structures, and drainage systems. The research method used is a quantitative-descriptive approach based on primary data from field surveys and secondary data covering traffic data, subgrade conditions, and regional rainfall. The planning analysis refers to applicable national standards to ensure that technical and road user safety criteria are met. The evaluation results showed that the existing road conditions did not fully comply with the planning requirements, thus requiring adjustments to the horizontal and vertical alignment elements to be consistent with the planned speed. The redesign resulted in a geometric layout that improved stopping sight distance, vehicle stability, and driving comfort. The flexible pavement structure is designed based on the bearing capacity of the subgrade and projected traffic growth during the design life, so that it is expected to be able to withstand vehicle loads optimally and extend the service life of the road. In addition, the drainage system is designed to effectively drain rainwater runoff to prevent puddles and pavement damage. Overall, the results of the study show that the application of integrated road planning based on technical standards can improve road operational performance, reduce the potential for accidents, and support smooth mobility and economic growth in Subang Regency.
Geometric Analysis of the Kanggraksan-Jendral Sudirman Road Section Harjamukti District, Cirebon City, West Java STA 0+000 – STA 2+456 Isradi, Muhammad; Auliya, Siti Rahma; Rukmana, Istiani Aditia; Kinasih, Reni Karno; Aryapijati, Raden Hendra
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.5197

Abstract

Road infrastructure is one of the main components in supporting urban transportation systems. Roads that are well managed can increase mobility efficiency, improve connectivity between areas, and support equitable development. This study was conducted on Jalan Kanggraksan No. 23, Harjamukti District, Cirebon City, West Java, which functions as a primary collector road and has experienced a decline in road quality as a result of high traffic loads. The purpose of this project is to analyze the geometric conditions of the road, determine the required thickness of the pavement layer, and calculate the estimated cost of rehabilitation. The research methods include collecting primary data in the form of average daily traffic surveys (ADT) and secondary data such as traffic growth, design speed, CBR values, rainfall, and pavement material types. Geometric analysis is carried out based on the standards of the Directorate General of Highways using AutoCAD Civil 3D software modelling, including terrain classification, horizontal and vertical bend calculations, superelevation, and sight distance.The results of the analysis show that the ±2.5 km road section has three bends with significant elevation variations, requiring geometric design adjustments to improve safety. A CBR value of 6.5 and annual rainfall of 1900–2500 mm necessitate the use of HRS-BC material with CTB and LFA class A foundations. Pavement thickness analysis resulted in recommendations for a layered structure with a planned lifespan of 12 years, while project cost estimates provided a comprehensive planning basis for sustainable development in the city of Cirebon.
Geometric Design and Pavement Analysis of Kopi Luhur Road, Argasunya Village: A Case Study in Cirebon Regency Isradi, Muhammad; Setyani, Mery; Prasetyo, Adi; Tamabitte, Vhena E; Dermawan, Widodo Budi
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.5199

Abstract

Street Kopi Luhur, located in Argasunya Village, Harjamukti District, Cirebon City, is a local road that plays a strategic role as the main access for residents to housing areas and centers of local economic activity. The research employed a descriptive quantitative approach. Primary data were obtained through direct field surveys, including visual inspections and measurements of pavement conditions, while secondary data were collected from relevant local government agencies. The analysis of pavement conditions was conducted using the Road Condition Index (RCI) method to determine the level of damage, whereas traffic performance was evaluated based on the Indonesian Road Capacity Guidelines (PKJI, 2023) to determine the Level of Service (LOS) and the Degree of Saturation (Dj). The results indicate that the pavement condition of Street Kopi Luhur is generally categorized as moderate to severely damaged, with an average RCI value of 53, corresponding to a class D service level. The dominant forms of pavement distress include longitudinal cracking, potholes, and surface unevenness. These damages are mainly caused by inadequate drainage systems, high traffic loads, and limited maintenance activities. Furthermore, the Degree of Saturation (Dj) value of 0.79 shows that the road segment is approaching congested conditions, leading to reduced service performance. Based on these findings, recommended improvement measures include rehabilitation of the pavement structure using HRS-WC and Cement Treated Base (CTB) layers, enhancement of the roadside drainage system, and the implementation of a community-based periodic maintenance program.
Road Geometry Analysis on Jl. Nyi Ageng Serang, Sindangjawa, Dukupuntang District, Cirebon Regency, West Java STA 0+000 – STA 2+000 Isradi, Muhammad; Nurulfiki, Hefa Wahyu; Badrudin, Ilman Nurhakim Firmasyah; Verdiansyah, Muhammad Dani
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.5254

Abstract

Nyi Ageng Serang Road is an important access road connecting several areas in Cirebon Regency. This study aims to analyze the suitability of the horizontal and vertical geometric elements of Nyi Ageng Serang Road, particularly in the segment from STA 0+000 to STA 2+000, against the applicable road planning standards, namely Regulation of the Minister of Public Works No. 19/PRT/M/2011 concerning Technical Requirements for Roads and Technical Planning for Roads. The research method used was a direct survey in the field to obtain primary data in the form of horizontal curve data, vertical slope, and other existing road geometric conditions. In addition, secondary data was obtained through literature studies and relevant supporting technical documents. The analysis was conducted by comparing existing geometric parameters, such as curve radius, transition curve length, maximum slope, and stopping sight distance, with applicable road technical standards, taking into account the planned speed according to road classification. The analysis results showed that several geometric elements on the road section from STA 0+000 to STA 2+000 did not fully meet planning standards. The discrepancies found include horizontal curve radii that are smaller than the minimum requirements, the presence of inadequate transition curves, and vertical gradients that exceed the maximum limits. These conditions have the potential to reduce the safety, comfort, and efficiency of road users' journeys. These findings are expected to form the basis for recommendations for road improvements in the future.
Geometric Evaluation of the Influence of Bends on Road User Suitability: A Systematic Literature Review Risnandar, Moch Aris; Mahesa, Riski; Juliar, Eka; Isradi, Muhammad
Journal of Sustainable Innovation Engineering Vol. 1 No. 3 (2025): November
Publisher : Institute Of Advanced Knowledge and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/sustainable.v1i3.15

Abstract

Tujuan dari studi ini adalah untuk mengevaluasi pengaruh karakteristik geometri tikungan jalan terhadap kepatuhan pengguna jalan menggunakan pendekatan Tinjauan Literatur Sistematis (SLR). Pencarian literatur dilakukan di berbagai basis data ilmiah, menghasilkan total awal 1.457 artikel. Setelah penyaringan dan evaluasi, 31 artikel dipilih dan ditinjau secara menyeluruh. Temuan studi menunjukkan bahwa komponen geometris seperti radius tikungan, superelevasi, dan jarak pandang henti berdampak signifikan pada keselamatan dan kenyamanan pengguna jalan. Sejumlah studi menunjukkan bahwa tikungan yang dirancang di bawah spesifikasi standar meningkatkan risiko kecelakaan, terutama di lingkungan yang tidak ramah pengguna. Geometri jalan yang selaras dengan persepsi dan harapan pengguna meningkatkan rasa aman dan nyaman saat berkendara. Studi ini menekankan bahwa desain tikungan berbasis bukti dan terstandarisasi secara teknis sangat penting untuk mendukung keselamatan lalu lintas.
Analysis of The Effect of Work Environment and Human Resource Aspects on Employee Performance Quality In Building Maintenance Work Saputra B, Dicky Andrianto; Isradi, Muhammad
Eduvest - Journal of Universal Studies Vol. 6 No. 1 (2026): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v6i1.52003

Abstract

The rapid development of infrastructure in Indonesia has not been matched by adequate attention to building maintenance activities. Many buildings experience deterioration before reaching their intended service life due to weak maintenance management, particularly in terms of human resources (HR). Worker performance plays a crucial role in maintenance success and is influenced by various factors, including discipline, motivation, work environment, training, ability, and tools. This study aims to analyze the influence of HR aspects and the work environment on worker performance quality in building maintenance projects at PT. XYZ, as well as to evaluate the importance and performance levels of each indicator using a combined method. A quantitative approach was applied using Structural Equation Modeling with Partial Least Squares (SEM-PLS) via SmartPLS 3.0 software. Additionally, Importance-Performance Analysis (IPA) was employed to identify improvement priorities. The results indicate that among the six variables, only discipline has a positive and significant impact on Worker Performance (path coefficient = 0.243; T = 2.026; P = 0.043). Other variables, including the Work Environment, were not statistically significant. Mediation analysis revealed an indirect effect of the Work Environment on Discipline and Motivation (coefficient = 0.281; T = 1.921; P = 0.055). Discipline is the most dominant factor in improving performance, while enhancing training and work environment remains essential as a long-term managerial strategy. IPA identified training-related indicators and supervisor motivation support as top priorities for improvement.
Analysis of Potential Factors on Contract Change Order (CCO) and Quality Performance and Design of Sicco Innovations in Road Infrastructure Projects in Tangerang Faizal, Zulkifli; Isradi, Muhammad
Eduvest - Journal of Universal Studies Vol. 6 No. 1 (2026): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v6i1.52005

Abstract

This study examines the factors influencing Contract Change Orders (CCO) and their relationship with quality performance in road infrastructure projects in Tangerang Regency. Based on DBMSDA data from 2022 to 2024, there were notable changes in contract values, especially in projects exceeding 1 billion IDR. The findings reveal that policy changes, specification adjustments, and planning errors are key contributors to CCO occurrences. Using SmartPLS 4.0 and the Structural Equation Modeling (SEM) method, the research analyzes the interrelationships between variables and their impact on project quality performance. The results demonstrate that effective coordination and strong planning significantly improve quality outcomes, while the scope of CCO directly influences overall project results. To support better governance, the study also proposes the development of a digital application for managing CCO submissions to enhance efficiency, transparency, and monitoring within the approval process. Overall, this research provides useful insights for stakeholders in infrastructure development to optimize project implementation, minimize risks, and improve quality performance in road construction projects.
Lokakarya Sistem Prediksi Pemeliharaan Mesin Menggunakan Algoritma Random Forest pada Perusahaan Layanan Perawatan Kendaraan Almahdy, Indra; Isradi, Muhammad; Pranoto, Hadi; Kholil, Muhammad; Haekal, Jakfat
IRA Jurnal Pengabdian Kepada Masyarakat (IRAJPKM) Vol 3 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajpkm.v3i3.345

Abstract

This community service program was conducted to address the low efficiency of conventional machine maintenance systems and the high risk of unexpected breakdowns in vehicle service companies. The program aimed to introduce a predictive maintenance system based on the Random Forest algorithm, enabling partners to shift from reactive maintenance practices toward data-driven decision-making. The applied methods included a needs assessment, theoretical training on machine learning fundamentals for 10 participants, hands-on practice using Python and Google Colab, and guided case studies based on the partner’s historical machine data. Evaluation results indicated a 42% improvement in participants’ technical understanding, while the developed system demonstrated the capability to detect potential failures 2–3 days earlier than traditional methods. The implementation successfully reduced unscheduled downtime and operational costs. Overall, this program enhanced the partner’s capacity to implement predictive maintenance, strengthened technicians’ digital literacy, and supported sustainable digital transformation in the vehicle service sector.
Co-Authors Abdila, Syafiadi Rizki Abdul Hamid Abdul Talib Bon Acep Hidayat Adhwa, Muhammad Adi Nurmahdi Adi Prasetyo Aditya, Tandhang Penta Agista, Shella Agung Wahyudi Biantoro Agus Sukoco Agustian, Renaldi Agyanata Tua Munthe Alfaizi, Mohammad Rendy Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amar Mufhidin Amrun Rosyid Andri Irfan Rifai Andri, Maulika Alifia Annisa Megarestya Anugrah, Febrian Anugraha, Pebri Tri Arief Rijaluddin Aryanti, Lina Aryapijati, Raden Hendra Asep Sudrajat Aulia Tarastanty, Nandhita Auliya, Siti Rahma Badawi, Abdullah Ahmad Badrudin, Ilman Nurhakim Firmasyah Biankalista, Intan Salma Budi Dermawan, Widodo Budi Susetyo Cahyani, Annisa Aryant Luthfi Candra, Bangkit Yanuar Yularso D A, Caroline Thiovila Dadang Supriyatno Daniel Arnoldi Gultom Daniel Arnoldi Gultom Darius Angtony DENI SETIAWAN Dermawan, Widodo Budi DR MUHAMMAD IKHSAN SETIAWAN ST MT Dwi , Yunanto Andi Dwiatmoko, Hermanto Elhazri Hasdian Enif Asfarianto Pratama Fadillah, Ahmad Fadli Bimantara Faizal, Zulkifli Fajar Prihesnanto Farras, Pramesti Safira Fazadi Rafianda, Dimar Fikri Ramdani Firdaus, Hendy Yusman Ginting, Rio Refelino Guohui Zhang Hadi Pranoto Haekal, Jakfat Hanayas Bagaskara Handayani, Susanty Hariadi, Madjumsyah Hartatik, Nurani Hasdian, Elhazri Hendy Yusman Firdaus Hendy Yusman Firdaus Hermanto Dwiatmoko Hermanto Dwiatmoko Hermawan Hermawan Heru Andraiko HERYADIANA, ASEP DIAN Hikmawati Thalib Ilham Andika Imam Sindu Baskoro Indra Almahdy Indriany, Syilvia Irfan Rifai Jaewono Prasetijo Jais, Fadel Rafi Assyahkaran Putra Jawu, Patricia Kanicia Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Joewono Prasetijo Johan Budiman, Johan Juliar, Eka Kinasih, Reni K. Kukuh Mahi Sudrajat Lensi Oktavia Stini Lista Lista Luthfi Rachmansyah M Farid Alfarizi R M Ikhsan Setiawan Made, Metta Mahendrata, Ananda Juliano Mahesa, Riski Martindo Gita Dwi Putra Maulana, Ahmad Hifni Mawardi Amin Mohamad Taufik, Mohamad Mohammad Khadem Mohd Adib Mohammad Razi Mufhidin, Amar Muhamad Yuan Kelvin Fuadi Muhamad, Rizal Muhammad Abdika Abdika Muhammad Ashlyzan Razik Muhammad Hafidh Muhammad Ikhsan Setiawan Muhammad Ikhsan Setiawan Muhammad Ikhsan Setiawan Muhammad Ikhsan Setiawan Muhammad Kholil Muhammad Naufal Farhan Muhammad Sylmi Taufanudin Mutiara, Johara Rosita Nabila, Nabila Nashir, Muhammad Farras Nasrun Nasrun Natawibawa K, Surya Nofila Sari Nova, Aryani Novianty, Nadira Nurohman Nurohman Nurulfiki, Hefa Wahyu Paisal Halim Pamadi, Mulia Pawaztris Pawaztris Pawaztris, Pawaztris Permatasari, Nur Fitria Praptoyo, Riska Dwi Prasetijo, Joewono Prasetyo, Agus Mudo Prasetyo, Yudi Dwi Putri Rahayu Raden Hendra Ariyapijati Rafaelin, Fabiola Frederica Rana Reza Vahira Redwan, Muhammad Reni Karno Kinasih Resinta, Tria Resmitasari, Meyshiva Aulia Reta, Reci Tiana Rifai Rifai Rifai, Andri I. Risnandar, Moch Aris Rohani, Munzilah Md Roisman A. Harefa Ronny Durrotun Nasihien, Ronny Durrotun Rukmana, Istiani Aditia Salma Karimah Saputra B, Dicky Andrianto Saputra, Tohmas Sari, Yusra A. Sari, Yusra Aulia Sembada, Abdi Septiyani, Yusan Nurul Setiawan, Muhammad I. Setiawan, Muhammad Ikhsan Setyani, Mery Subagyo, Indriawan Sudrajat, Asep Sudrajat, Kukuh Mahi Sugeng Sugeng Sumarno, Agung Sumiyati Sumiyati Sumiyati Suprapti Suprapti Suprapti Surya, Mukhlis Ade Syafiq Human Maulana Syafwandi Syafwandi Syafwandi Syafwandi Syafwandi Syamsiah Badruddin Syarif Hidayatullah Sylvia Indriany Tabrani, Alhavid Tamabitte, Vhena E Toruan, Erni Sari Lumban Trijayanti, Wiwin Umar, Usmanul Hayadi Valiant, Rizqi Vendhy Vendhy Verdiansyah, Muhammad Dani Vidayanti, Desiana Viranti Fahra Salsabila Wahyu Mulyo Utomo Wan Zahidah Musa Widodo Budi Dermawan Widodo Budi Dermawan Widodo Budi Dermawan Widodo Budi Dermawan Widodo Budi Dermawan Widodo Budi Dermawan Widodo Budi Dermawan Widyadhana, Gibran Arya Wincent Wincent Wirdianto, Agus Yanti, Dwi Sri Yasir, Yasrizal Yusman Firdaus, Hendy Zaenal Arifin Zaenal Arifin Zaffan Farhana Zainal Zainal Arifin Zainal, Zaffan Farhana Zhang, Guohui Zolkepli, Muhammad F. Zolkepli, Muhammad Farhan