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Article | Civil and Sustainable Urban Engineering | Volume 5 - Issue 2 - 2025 | 195−212 | https://doi.org/10.53623/csue.v5i2.867
© 2025 by the author(s), and is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) License Creative Commons Attribution 4.0 International (CC BY 4.0) License

Optimizing Geometric Alignment of High-Speed Railway in Hazard-Prone and Topographically Challenging Regions: A Case Study of the Bandung–Cirebon Corridor, Indonesia

Author(s): Adya Aghastya , Aldi Wardana Yudha
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Construction and Railway Technology, Indonesia Railway Polytechnic, Jl. Tirta Raya, Pojok, Nambangan Lor, Kec. Manguharjo, Kota Madiun, Jawa Timur, 63129, Indonesia

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Civil and Sustainable Urban Engineering

Volume 5 - Issue 2 - 2025

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The development of high-speed rail (HSR) infrastructure in Indonesia, particularly along the Bandung–Cirebon corridor, required precise geometric planning to ensure operational efficiency, safety, and long-term performance. This study aimed to design an optimized alignment for the Phase III segment between Ligung and Tengahtani by integrating engineering criteria with spatial and environmental constraints. A descriptive-analytic method was employed, combining field surveys, Digital Elevation Model Nasional (DEMNAS) data, and spatial planning documents, which were processed using Global Mapper and AutoCAD Civil 3D to generate alignment models, earthwork calculations, and spatial risk assessments. The proposed design featured five main horizontal curves with radii ranging from 2,500 to 12,000 meters and fourteen vertical curves with a constant 25,000-meter radius, meeting technical standards for a maximum operational speed of 350 km/h. Earthwork estimation yielded approximately 4.82 million m³ of excavation and 47,208 m³ of fill, while land acquisition requirements totaled around 1.83 million m², primarily affecting agricultural and residential zones. Spatial analysis identified 1.64 million m² of the proposed corridor as being located in moderate- to high-seismic-hazard zones, emphasizing the need for structural mitigation strategies and geotechnical monitoring. The findings highlighted the critical importance of integrating geometric design with topographical and hazard data in planning resilient HSR infrastructure. This study provided a replicable framework for railway alignment in complex terrain and supported sustainable transportation development in Indonesia’s rapidly evolving intercity network.

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SUBMITTED: 24 October 2025
ACCEPTED: 20 November 2025
PUBLISHED: 21 November 2025
SUBMITTED to ACCEPTED: 27 days
DOI: https://doi.org/10.53623/csue.v5i2.867

Cite this article
Aghastya, A. ., & Yudha, A. W. (2025). Optimizing Geometric Alignment of High-Speed Railway in Hazard-Prone and Topographically Challenging Regions: A Case Study of the Bandung–Cirebon Corridor, Indonesia. Civil and Sustainable Urban Engineering, 5(2), 195−212. https://doi.org/10.53623/csue.v5i2.867
Keywords
Railway Infrastructure Planning Geometric Alignment Design Indonesian High-Speed Railway Earthwork Analysis
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