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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Astonjadro Journal La Lifesci Journal La Multiapp ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) International Journal of Architecture and Urbanism Jurnal Indonesia Sosial Sains Sewagati Jurnal Pengabdian Masyarakat dan Riset Pendidikan
Hasibuan, Gina Cynthia Raphita
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Study on the Impact of Water Quality from the Mebidang SPAM on Customer Satisfaction Surbakti, Paschalia Retnoningtyas; Anas, M. Ridwan; Hasibuan, Gina Cynthia Raphita; Mardianta, Anthoni Veery; Nursyamsi, Nursyamsi
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.v6i6.2775

Abstract

In 2021, the service coverage of PDAM Tirtanadi’s water supply system reached 73.3%. To further improve the service capacity, a new raw water source was developed through the construction of the Mebidang Regional Water Supply System (SPAM), which draws water from the Bingei River in Binjai City. The PDAM Tirtanadi branches directly affected by this change in raw water source include the Sei Agul and Diski branches. This study aims to evaluate customer satisfaction levels with the water product quality and service performance of the Mebidang SPAM at PDAM Tirtanadi. The methods employed include the Customer Satisfaction Index (CSI) and Importance and Performance Analysis (IPA). Data were collected through questionnaires distributed to both existing customers and new service connections at the Diski and Sei Agul branches of PDAM Tirtanadi. The results showed that customer satisfaction levels were as follows: long-term customers at the Diski branch scored 83.56%, new connections at Diski 83.57%, long-term customers at Sei Agul 82.78%, and new connections at Sei Agul 92.26%. These results indicate that both long-term and new customers at the Diski and Sei Agul branches are generally satisfied with the overall service quality. Based on the IPA results, the main priority for improvement at the Diski branch concerns the imbalance between the cost paid by customers and the volume of water received. Meanwhile, for the Sei Agul branch, variables categorized as low performance and low importance but still of lower priority include PDAM’s responsiveness to customer requests, such as for new connections or meter repairs.
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.
Analisis Pemodelan Bangkitan dan Tarikan Pergerakan Transportasi Pada Transportasi pada Tempat Wisata Daulay, Rizky Ansyori; Hasibuan, Gina Cynthia Raphita; Anas, Ridwan
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i12.62788

Abstract

This study was conducted to analyze the trip generation and attraction of transportation movements in the Mikey Holiday tourist area of Berastagi, which is one of the main tourist destinations in North Sumatra with a high level of visitation. The increase in tourism activities that is not accompanied by adequate transportation planning has the potential to cause traffic congestion, pollution, and a decline in the quality of traffic services; therefore, an accurate movement prediction model is required as a basis for efficient and sustainable transportation planning. This research employed a quantitative approach using multiple linear regression analysis to identify the factors influencing trip generation and attraction and to develop their mathematical models. Primary data were obtained through field surveys, interviews, and direct observations of vehicle inflows and outflows, visitor characteristics, travel distances and durations, and transportation modes used, while secondary data included the total facility area, parking capacity, and number of employees in the tourist area. The analysis results show that facility area, parking capacity, number of visitors, and number of employees have a positive influence on the level of vehicle movement, whereas travel time has a negative influence. The model intercept values of -40.771 for trip generation and -127.194 for trip attraction indicate the presence of other external factors not included in the model but still affecting movement patterns, such as accessibility conditions and weather factors. Statistical tests demonstrated that all independent variables simultaneously have a significant influence on the dependent variable, with coefficients of determination (R²) of 49% for the trip generation model and 47% for the trip attraction model, indicating that the models are sufficiently representative in explaining variations in vehicle movement at the study location.
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.
Co-Authors Ade pradipta Putri Al Fath, Muhammad Thoriq Alamsyah, Vandria Anas , M. Ridwan Anas, M. Ridwan Anas, Muhammad Ridwan Angel Angel Anthoni Veery Mardianta Brahmana, Ivana Christine Sembiring Catherine, Ester Sara Dalimunthe, Nisaul Fadilah Daulay, Rizky Ansyori Fath, Muhammad Thoriq Al Fitri, Fadilla Girsang, Arisman Gusferi, Irfan Hasibuan, Asrul Hanafi Hasibuan, Fery Hamonangan Kwek, Philip Lubis, Agussalim Lubis, Edo Rizki Pradana M. Ridwan Marpaung, Masista Matondang, Venansia Roulina Michael Michael Muhammad Aswin Muhammad Fajar Muhammad Hendra S Ginting Mulia, Ahmad Perwira Nasution, Dea Amanda Sari Nasution, Juan Akmal Nasution, Zaid Perdana Nursyamsi Nursyamsi Panjaitan, Alfin Lambok Pascatama Purba, Yosua Putri, Vini Rizki Eka Ramadhan, Aravi Zalsa Rambe, Janeta Fazriah Ricky Bakara Ridwan Anas, Ridwan Roesyanto Sara, Ester Catherine Sari, Indah Mutya Sembiring, Dicky Andrea Sembiring, Robi Arianta Sidabutar, Rivaldi Silalahi, Putri Permata Sinaga, Yoppy Tigor Mario Sitorus, Frarev Robbyan Joshua Soraya Muthma Innah Nasution Sundari, Risky Fajar Surbakti, Paschalia Retnoningtyas Surbakti, Rudianto Susila, Hermanta Tania Alda TARIGAN, Johannes Tarigan, Rallya Napinia Vazelim, Valencia