A Vertical Railroad Alignment Design with Construction and Operating Costs
Publication: Journal of Transportation Engineering, Part A: Systems
Volume 145, Issue 10
Abstract
Vertical alignment profiles are generally governed by geographical constraints; however, vertical alignment design is important, as it may significantly affect operating decisions such as travel time and tractive and braking energy consumption. This paper seeks to optimize vertical railroad alignment considering the costs of user, operation and construction. A genetic algorithm and a simulation model are jointly used to find solutions for vertical alignment characteristics and operating speed, and numerical cases are presented. The model developed can be applied to analyze both the operating efficiency of existing railroads and the feasibility of new railroads.
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Acknowledgments
This work was supported by an Incheon National University (International Cooperative) research grant in 2015.
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Published In
Journal of Transportation Engineering, Part A: Systems
Volume 145 • Issue 10 • October 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Oct 2, 2018
Accepted: Feb 25, 2019
Published online: Jul 25, 2019
Published in print: Oct 1, 2019
Discussion open until: Dec 25, 2019
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