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Journal : PENDIPA Journal of Science Education

PERENCANAAN GEOMETRI JALAN REL ANTARA TARAHAN BAKAUHENI Sari, Nurwanda; Bustam, Hadyan Arifin; Setyaji, Arif; Pamursari, Nurmagita; Zhafari, Rizaldi
PendIPA Journal of Science Education Vol 8 No 2 (2024): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.2.349-357

Abstract

As technology continues to advance and Indonesia's population experiences rapid growth, transportation is also progressing. The train is a mode of transportation designed to carry passengers and goods, whether in small or large quantities, over long distances. Trains are one efficient modes of land transportation. This research located along Tarahan Bakauheni route, with the shortest straight distance spanning 50 km. The data used for the design of this railway track includes Passenger Data from Bakauheni Port, Coal Cargo Data, Topography Data, and other supporting data. The planning phase is carried out using regulations such as Ministerial Regulation No. 60 of 2012, PD 10, and other relevant rules. In the railway design, used is Class I with a track gauge of 1067 mm. The Horizontal Alignment planning for the route involves 42 curves with the SCS type, where each curve has a radius of 850m, a track elevation of 79.023 mm, and a transition curve length of 94.828 m. Class I railway has a maximum ruling gradient of 10‰ and includes 18 vertical curves with a radius of 8000m. The structure of the railway uses R60 type rails with concrete sleepers and employs double elastic fasteners of the Pandrol Fastclip type.
Peningkatan Efisiensi Operasional Commuter Line Jogja-Solo Melalui Perbaikan Jadwal Putri, Ananda Agneshia; Oktavianto, Alfin; Pamursari, Nurmagita; Sari, Nurwanda
PendIPA Journal of Science Education Vol 8 No 2 (2024): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.2.368-376

Abstract

The Commuter Line is a train service that serves short routes within or between cities, mainly for daily commuters in urban areas. Launched on February 10, 2021 to replace KRD Prameks, KRL Jogja-Solo aims to improve the efficiency of intercity travel. Passenger numbers for KRL Jogja-Solo continue to increase, based on PT KAI Commuter Line's latest data, with passenger numbers per month in 2023 showing a significant increase. For example, in August there were 512,547 passengers, while in December it increased to 709,634 passengers. This increase creates pressure on the existing carrying capacity. This research aims to assess the challenges faced by KRL Jogja-Solo in accommodating the increasing number of passengers and find solutions to meet the growing demand. This research focuses on improving the operational efficiency of KRL Jogja-Solo through schedule improvements, assessing passenger volume, cross capacity, and passenger projections for the period 2024-2033. The Scott method is used for cross capacity analysis and the geometric growth formula for passenger projections, with optimal solutions based on optimistic, moderate, and pessimistic scenarios. Results show that the addition of four afternoon trips and skip-stop scheme is the best solution in the optimistic scenario, skip-stop scheme without additional trips in the moderate scenario, and improvement of the existing schedule in the pessimistic scenario. This research emphasizes the importance of long-term planning and regular evaluation to ensure the smoothness and convenience of the Jogja-Solo KRL service.
Proses Penanganan Rel Aus Pada Lengkung NO.16A KM 4+8/0 Jalur Hilir Lintas Manggarai – Tanah Abang Pamursari, Nurmagita; Fadhilah, Muhamad Farras; Sari, Nurwanda
PendIPA Journal of Science Education Vol 9 No 2 (2025): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.2.364-371

Abstract

Railways is a unified system consisting of infrastructure, facilities, and human resources, as well as norms, criteria, requirements and procedures for the implementation of railway transportation. Railroad infrastructure is a railway line, train stations and train operating facilities. Railway maintenance activities are preventive measures (preventive) and / or replacement in accordance with the technical age. In this study there are several types of maintenance in handling rail replacement on the Manggarai - Tanah Abang crossing. From this study the total wear that occurred from KM 4+800 to 5+00 reached 232.2 meters of track. Wear occurs in curve number 16A. Then there are several treatments carried out such as checking rail material data, replacing rail roads, maintaining forces and electricity, normalizing arrows, and thermite welding. In this rail replacement, maintenance is carried out by inspecting the railroad, maintaining the lighting force whose height must be adjusted to the radius of the curve, and returning the arrows which require prior calculation in carrying out maintenance. Calculation of arrows and elevation must be in accordance with applicable regulations or standards.
Analysis of the Effect of Rail Connection Failure Using the AHP, FMECA, WRPN Methods (Case Study of the Tanjung Karang Station – Rejosari Station Crossing) Febriyadi; Bustam, Hadyan Arifin; Setyaji, Arif; Melyta, Elyabet; Pamursari, Nurmagita; Putri, Ananda Agneshia
PendIPA Journal of Science Education Vol 9 No 3 (2025): October
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.3.701-710

Abstract

Rail joints are critical points in railway track infrastructure that affect passenger train ride comfort and safety. This study analyzes their impact along the Tanjung Karang – Rejosari line through Track Quality Index (TQI) and International Roughness Index (IRI Roadbump) measurements, passenger perception surveys using the Analytic Hierarchy Process (AHP), and failure risk evaluation using Failure Mode, Effects, and Criticality Analysis (FMECA) with Weighted Risk Priority Number (WRPN). Results indicate that joints with high TQI and IRI values produce significant impacts, reducing comfort. AHP identified impacts as the dominant factor, while FMECA found the highest RPN in thermite welded joints with the failure mode of “joint corrosion.” The study recommends replacing thermite welding with flash butt welding and converting mechanical joints to permanent welded joints to improve track geometry, reduce failure risk, and enhance comfort and safety.