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DOUBLE TRACK RAILWAY PLANNING ONE THE TRACK KM 309+260 – KM 302+600 SECTION DIVRE IV TANJUNG KARANG: PERENCANAAN JALAN REL DOUBLE TRACK PADA LINTASAN KM 309+260 – KM 302+600 DIVRE IV TANJUNG KARANG febriyadi febriyadi; Arif Setyaji; Exaudi; Nur Anisa Mardhotila; Muhammad Riski Arif; Nurwanda Sari; Siti Maulidina; Hadyan Arifin Bustam
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 8 No 1 (2026): Vol 8 No 1 Tahun 2026
Publisher : Universitas Negeri Surabaya

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Abstract

Coal distribution at PT Bukit Asam uses railway transportation. This is considered quite efficient given the capability of trains to carry both passengers and goods in large quantities in a single trip, making it very efficient for mass transportation and logistics distribution over medium to long distances. However, in terms of advantages, trains on a single track face limitations in distance, load, and traffic capacity. Planning a Double Track route offers advantages in addressing issues related to load and traffic capacity. This study aims to find solutions regarding the traffic load on a track by adding a railway line (Double Track) without changing the existing track. The railway route planning is designed based on factors of comfort, safety, security, economy, and environment. The Vertical Alignment planning includes 2 curves with a planned radius of 7000 m and a gradient value of 6.6‰. The material requirements for the planned railway structure consist of R60 Rails (497 units), Double Elastic Fasteners (41,400 units), Concrete Sleepers (10,350 units), Ballast Volume (7,173 ), Ballast Volume (15,897 ), Cut Volume (567,743 ), and Fill Volume (205,269 )    
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; Hadyan Arifin Bustam; Arif Setyaji; Elyabet Melyta; Nurmagita Pamursari; Ananda Agneshia Putri
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.