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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Juripol (Jurnal Institusi Politeknik Ganesha Medan) SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL Journal La Lifesci Journal La Multiapp ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat
Mulia, Ahmad Perwira
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Social Sciences Other

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The Impact of Land Cover Change in the Bolon Watershed on Flood Zonation Pane, Indah Permatasari Br. S.; Mardianta, Anthoni Veery; Mulia, Ahmad Perwira
Journal La Lifesci Vol. 6 No. 5 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i5.2740

Abstract

Flood risk assessment plays a crucial role in determining flood hazard zones and formulating effective mitigation strategies. Using a multi- criteria decision support system, this study focuses on evaluating the flood risk index within the Bolon Watershed (DAS Bolon). Geographic Information Systems (GIS) were employed as an effective disaster mitigation tool to provide comprehensive geospatial data. The research integrates the Cellular Automata–Markov Chain (CA–MC) model using the MOLUSCE plugin in QGIS to spatially project land-use change analysis, the Analytical Hierarchy Process (AHP) to determine variable weights influencing flood risk, and Weighted Multi-Criteria Analysis (WMCA) for spatial flood zonation assessment. Between 2017 and 2021, significant land-cover changes occurred in the Bolon Watershed, with 67.55 km² converted into residential areas. Forest Flood risk assessment plays a crucial role in determining flood hazard zones and formulating effective mitigation strategies. Using a multi- criteria decision support system, this study focuses on evaluating the flood risk index within the Bolon Watershed (DAS Bolon). Geographic Information Systems (GIS) were employed as an effective disaster mitigation tool to provide comprehensive geospatial data. The research integrates the Cellular Automata–Markov Chain (CA–MC) model using the MOLUSCE plugin in QGIS to spatially project land-use change analysis, the Analytical Hierarchy Process (AHP) to determine variable weights influencing flood risk, and Weighted Multi-Criteria Analysis (WMCA) for spatial flood zonation assessment. Between 2017 and 2021, significant land-cover changes occurred in the Bolon Watershed, with 67.55 km² converted into residential areas. Forest deforestation began in 2017 and is projected to continue until 2033, potentially disrupting the hydrological cycle and intensifying flood-prone zones. As a result, the flood-prone residential area increased markedly from 1.4% (2017) to 2.89% (2021) and is projected to reach 4.74% by 2033, with an average annual increase of 0.21%. This study underscores the importance of improved land-cover management to mitigate flood zonation in the Bolon Watershed. It also emphasizes the need for strict enforcement of spatial planning and zoning regulations, as well as enhanced monitoring and legal measures against land-use conversion particularly in flood-prone and water recharge areas
Impact Analysis of Infrastructure Changes from Signalized Intersection to Underpass on Vehicle Exhaust Emissions Tarigan, Rallya Napinia; Anas, M. Ridwan; Mulia, Ahmad Perwira; Hasibuan, Gina Cynthia Raphita; Tarigan, Johannes
Journal La Lifesci Vol. 6 No. 6 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i6.2829

Abstract

The Medan City Government plans to make infrastructure changes by building underpass at the existing signalized intersection between Road Ir. H. Juanda and Road Brigjend. Katamso to reduce traffic congestion. In recent years, vehicle emissions have become a global concern due to their significant impact on public health and environmental quality. As road traffic and vehicle numbers continue to grow, transportation has become a key contributor to air pollution from vehicle exhaust emissions. Consequently, it is essential to assess whether the infrastructure changes from signalized intersection to underpass have an impact on vehicle exhaust emissions. The impact analysis of infrastructure changes on vehicle exhaust emissions is evaluated through traffic simulation using PTV Vissim software with two scenarios, namely the do nothing scenario (existing signalized intersection) and the do something scenario (underpass) ), focusing on CO, NOx, and VOC emissions. The comparative results indicate substantial changes: CO emissions declined by 42.5% (from 40,991 grams to 23,567 grams), VOC by 37.1% (from 9,500 grams to 5,975 grams), while NOx emissions increased by 23.3% (from 7,075 grams to 8,725 grams). These findings suggest that the infrastructure changes from signalized intersection to underpass can positively influence air quality by reducing specific pollutants. However, further studies are necessary to examine its broader impact on other types of vehicle exhaust emissions using diverse emission categories, multiple calculation approaches, and various analytical methods for comprehensive comparison.
Faktor Penyebab Keterlambatan Pembebasan Lahan Pembangunan Jalan dan Jembatan di Lingkungan Balai Besar Jalan Nasional Sumatera Utara Girsang, Arisman; Mulia, Ahmad Perwira; Hasibuan, Gina Cynthia Raphita; Bakara, Ricky; Nasution, Soraya Muthma Innah
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i12.63160

Abstract

Keterlambatan pengadaan tanah merupakan tahap krusial dalam pembangunan infrastruktur jalan dan jembatan, karena keterlambatan pada tahap ini dapat menghambat jadwal konstruksi dan meningkatkan biaya proyek. Di lingkungan Balai Besar Pelaksanaan Jalan Nasional (BBPJN) Sumatera Utara, proses pengadaan tanah masih menghadapi berbagai kendala administratif, kelembagaan, dan sosial-ekonomi yang berdampak langsung pada kinerja proyek. Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor penyebab keterlambatan pengadaan tanah, menentukan bobot pengaruh setiap faktor secara matematis menggunakan metode Importance Index, serta merumuskan strategi mitigasi untuk percepatan prosesnya. Data dikumpulkan melalui kuesioner terhadap empat kelompok responden---Owner, Stakeholder, Tim Appraisal, dan Pemilik Tanah---dengan total 35 indikator penyebab keterlambatan. Analisis dilakukan dengan menghitung Frequency Index (FI), Severity Index (SI), dan agregasi Importance Index (II) rerata kelompok. Hasil menunjukkan lima faktor dengan nilai II tertinggi: C2 (Koordinasi antar instansi memerlukan waktu, 60,79%), C1 (Perizinan dan rekomendasi lambat, 56,26%), H2 (Jumlah warga pemilik tanah banyak, 52,98%), H4 (Banyak pemilik tanah yang memiliki ekonomi rendah, 52,43%), dan H1 (Harga permintaan ganti rugi yang tinggi, 51,49%). Pembahasan menunjukkan bahwa hambatan kelembagaan dan sosial-ekonomi menjadi penyebab dominan. Strategi mitigasi difokuskan pada pembentukan task force lintas instansi, penyederhanaan birokrasi, digitalisasi data bidang tanah, dan sosialisasi publik yang transparan. Penelitian ini menyimpulkan bahwa reformasi tata kelola kelembagaan dan pendekatan sosial berbasis kepercayaan menjadi kunci utama percepatan pengadaan tanah yang efisien, adil, dan berkelanjutan.
Traffic Impact Analysis of an Underpass on the Performance of Nearby Signalized Intersections Using VISSIM Purba, Yosua; Anas, M. Ridwan; Mulia, Ahmad Perwira; Hasibuan, Gina Cynthia Raphita; Tarigan, Johannes
Journal La Multiapp Vol. 7 No. 1 (2026): Journal La Multiapp
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallamultiapp.v7i1.2830

Abstract

Medan City is one of the metropolitan cities with a high level of congestion and population density, resulting in traffic jams, delays, as well as air and noise pollution. This study aims to analyze the performance of intersections on S.M Raja – Halat road, Brigjend Katamso – Mesjid Raya road, and Brigjend Katamso - Pelangi road before and after the operation of the underpass at the Ir.H.Juanda – Brigjend Katamso road intersection using vissim software. Data were obtained from traffic surveys such as vehicle volume surveys, road geometry, traffic signal cycle times, and vehicle speeds. The data obtained from the vissim software simulation results include queue lengths, delays, and level of service at the intersection. For the simulation results at the Ir.H.Juanda – Brigjend Katamso road intersection before the operation of the underpass, the average queue length was 274.3 m and the average delay was 307.38 sec/vehicle, with an average level of service of F (very poor). After the operation of the underpass, the average queue length was 8.38 m and the average delay was 0.96 sec/vehicle, with an average level of service of A (excellent). With a 5-year scenario, the average queue length was 38.53 m and the average delay was 12.34 sec/vehicle, with an average level of service of B (good). Thus, a significant difference is clearly visible between before and after the operation of the underpass, such as the results of queue lengths, delays, and service levels, which have caused new conflicts at the intersections closest to the underpass.
Perencanaan Jaringan Distribusi Sistem Penyediaan Air Bersih di Kecamatan Kutalimbaru Kabupaten Deli Serdang Dengan Sumber Air Baku Sungai Tuntungan Tambunan, Fadlan Sarifuddin; Mulia, Ahmad Perwira; Faisal, Muhammad
Juripol (Jurnal Institusi Politeknik Ganesha Medan) Vol. 9 No. 1 (2026): Juripol (Jurnal Institusi Polgan)
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pada sensus penduduk 2020, BPS telah mencatat jumlah penduduk Indonesia saat ini sebesar 270,2 juta jiwa dengan laju pertumbuhan penduduk sebesar 1,25 persen per tahun. Dengan pertumbuhan penduduk yang terus meningkat, kebutuhan air bersih akan terus meningkat, serta dikhawatirkan akan terjadi kekurangan ketersedian sumber air baku untuk memenuhi kebutuhan air bersih. Penelitian ini merencanakan jaringan distribusi system penyediaan air bersih di kecamatan kutalimbaru dan kecamatan pancur batu, provinsi sumatera utara tepatnya pada desa lau bakeri, desa silebo - lebo, desa gunung tinggi, dan desa sei glugur. Penelitian ini menggunakan metode Gravitasi dan simulasi EPANET. Berdasarkan hasil survey dan perhitungan maka didapatlah desain teknis jaringan distribusi yang direncanakan dimana sistem pengaliran yaitu secara sistem gravitasi dengan jarak peletakan reservoir £214 m dari letak intake pada sumber air baku sungai tuntungan dengan ketinggian reservoir yaitu berada pada ketinggian £170 mdpl. Jenis pipa yang digunakan pada perencanaan ini adalah pipa gip dengan ukuran pipa primer ø sebesar 200mm dengan nilai kekasaran pada pipa sebesar 110, kapasitas maksimal 0,037 It/dtk. Aspek kontinuitas aliran terpenuhi, dengan tekanan air yang telah memenuhi syarat hampir di semua lokasi pelayanan ( 10 meter) dan kecepatan pada pipa juga memenuhi syarat disemua lokasi perencanaan pelayanan (0,3 - 3 m/s)
Co-Authors Anas, M. Ridwan Angel Angel Anthoni Veery Mardianta El Hadidhy, Habibi Emma Patricia Bangun Fath, Muhammad Thoriq Al Girsang, Arisman Hamidah Harahap, Hamidah Hasbi, Muhammad Taufik Hasibuan, Gina Cynthia Raphita Ilhamsyah Siregar, Sutan Indra Jaya PAndia, Indra Jaya Kadreni, Emilia Kwek, Philip Michael Michael Muhammad Faisal Nasution, Dea Amanda Sari Nasution, Zaid Perdana Pane, Indah Permatasari Br. S. Purba, Yosua Pyanto, Farino Raphita Hasibua, Gina Cynthia Raphita Hasibuan, Gina Cynthia Renita Manurung Ricky Bakara Rizki, Rahmad Soraya Muthma Innah Nasution Surbakti, Medis S Syafaruddin Syafaruddin Tambunan, Fadlan Sarifuddin Tampubolon, Gustav Reynold TARIGAN, Johannes Tarigan, Rallya Napinia