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All Journal Jurnal Civil Engineering Study Kohesi: Jurnal Sains dan Teknologi
Achmad Dzulfiqar Alfiansyah
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Energy Engineering Other

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ANALISIS PENGENDALIAN WAKTU PADA PROYEK PEMBANGUNAN JALAN FLEXIBLE PAVEMENT KOLEKTOR (JL. WIYUNG – LIDAH WETAN) DENGAN MENGGUNAKAN METODE EARNED VALUE MANAGEMENT SYSTEM Lubabul Hikam, Mochammad Chaidar; Fauzi Rizky Riza Wardana; Achmad Dzulfiqar Alfiansyah
Kohesi: Jurnal Sains dan Teknologi Vol. 5 No. 12 (2024): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v5i12.9181

Abstract

The construction of road infrastructure plays a crucial role in enhancing connectivity and driving economic growth, including in Surabaya City, East Java. This study analyzes the Flexible Pavement Collector Road construction project on Jl. Wiyung – Lidah Wetan using the Earned Value Management System (EVMS) method to evaluate project performance and identify acceleration strategies. Primary data, including the time schedule, budget plan, and weekly progress reports, were used to calculate BCWS, BCWP, SV, SPI, ETC, and EAC values. The analysis results indicate that the project experienced significant delays, with a progress deviation of up to -28.57% in the 22nd week. The average SPI value of 0.63 (<1) indicates low resource utilization efficiency. The main factors causing the delays include incomplete land acquisition, slow utility relocation, labor shortages, and adverse weather conditions. Acceleration efforts were focused on critical paths covering work items with a volume weight of 80%, using Network Planning Diagrams to prioritize activities. Calculations showed that the project could be accelerated by an additional 11 days; however, it still experienced a 4-day delay from the initial schedule. To address this, the remaining work was completed during the maintenance phase by adding resources.This study underscores the importance of integrated project management aligned with SDG principles to support sustainable infrastructure development.
Studi Kelayakan Tarif Commuter Line Arjonegoro Rute Sidoarjo Bojonegoro Muhamad Alif Rifaldi; Fithri Estikhamah; Achmad Dzulfiqar Alfiansyah
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1443

Abstract

Bojonegoro Regency, Lamongan Regency, Gresik Regency, Surabaya City, and Sidoarjo Regency are areas with very high levels of community mobility. Many migrants from Bojonegoro and Lamongan travel to Surabaya for work and further education. One of the transportation options available is the Arjonegoro Commuter Line. This study aims to determine passenger satisfaction with the appropriateness of fares based on their ability and willingness to pay. Primary data collection was obtained by distributing questionnaires to passengers. The Ability to Pay (ATP) analysis obtained a value of Rp 10,034 and analysis using the Willingness to Pay (WTP) method obtained a value of Rp 3,539. This condition indicates that the ability to pay is greater than the willingness to pay. This indicates that the current fare can be said to be appropriate because the fare is between the ATP and WTP values.
Evaluasi Nilai EMP Truk Besar terhadap Kinerja Ruas Jalan Luar Kota Berdasarkan PKJI 2023 Purnamasari, Fitriana; Nugroho Utomo; Achmad Dzulfiqar Alfiansyah
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1489

Abstract

Setiap ruas jalan memiliki karakteristik lalu lintas yang berbeda, yang memengaruhi nilai ekuivalensi mobil penumpang (EMP). EMP merupakan faktor konversi untuk berbagai jenis kendaraan terhadap mobil penumpang, guna menilai dampaknya terhadap lalu lintas. Nilai EMP dalam PKJI 2023 telah ditetapkan berdasarkan tipe jalan, namun perlu dikaji ulang agar sesuai dengan kondisi aktual. Penelitian ini dilakukan pada ruas Jalan Tambak Osowilangun Surabaya yang didominasi kendaraan berat, sehingga pola berkendara cenderung agresif. Metode yang digunakan adalah time headway dan regresi linear berganda. Hasil penelitian menunjukkan bahwa nilai EMP truk besar dengan metode time headway adalah 2,13 untuk volume 1000–1799 kendaraan/jam; 1,85 untuk volume 1800–2149 kendaraan/jam; dan 2,28 untuk volume ≥2150 kendaraan/jam. Sementara itu, metode regresi linear berganda menghasilkan nilai EMP sebesar 1,01; 0,94; dan 1,00 untuk volume yang sama. Nilai derajat kejenuhan yang dihitung menggunakan EMP dari metode time headway pada volume 1000–1799 kendaraan per jam memiliki nilai 3% lebih besar dari perhitungan dengan EMP PKJI 2023. Untuk volume 1800–2149 kend/jam, hasilnya 92% lebih kecil, dan pada volume ≥2150 kend/jam, hasilnya 3% lebih besar. Sedangkan derajat kejenuhan berdasarkan EMP hasil regresi linear berganda memiliki nilai 79% – 92% lebih kecil dibandingkan perhitungan menggunakan EMP dari PKJI 2023.
Kajian Dampak Proyek Jalan Tol Solo-Yogyakarta Terhadap Peforma Simpang Bersinyal Kronggahan Kota Yogyakarta Hernawan Bachtiar Ramadhan; Fithri Estikhamah; Achmad Dzulfiqar Alfiansyah
Jurnal Civil Engineering Study Vol. 5 No. 02 (2025): Jurnal Civil Engineering Study
Publisher : Civil Engineering of Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/ces.v5i02.1467

Abstract

The construction of the Solo-Yogyakarta-NYIA Kulon Progo Toll Road is expected to improve regional connectivity, but it also creates the potential for congestion at signalized intersections, such as Kronggahan Intersection. This study was conducted to evaluate the impact of toll road construction on the traffic performance of the intersection, using the Indonesian Road Capacity Guidelines (PKJI) 2023 method. Data was collected through traffic surveys in the morning and evening peak hours on four different days, then analyzed for existing conditions, road median change scenarios, and five-year projections. The results showed that the existing condition had an average degree of saturation (DJ) of 0.96 with a total delay of 112,578 seconds/smp. Changes to the road median due to toll construction increased the DJ to an average of 1.19 and the total delay jumped to 591,425 seconds/smp, accompanied by queue lengths of up to 403.65 meters. Simulation of the implementation of two phases without right turns succeeded in reducing the DJ to 0.32-0.39 and the delay to 2,448-6,754 seconds/smp. However, projections for 2030 show the DJ rising again to 1.13 due to growth in vehicle volumes. These findings emphasize the importance of adjusting geometric design and traffic management from the planning stage of toll projects so that infrastructure development can improve accessibility without causing significant congestion at local intersections. This research contributes to the development of civil engineering science, especially in the field of traffic management.
Co-Authors Fauzi Rizky Riza Wardana Fithri Estikhamah Hernawan Bachtiar Ramadhan Lubabul Hikam, Mochammad Chaidar Muhamad Alif Rifaldi Nugroho Utomo Purnamasari, Fitriana