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Railway Capacity Allocation Modeling Using a Genetic Algorithm

Title
Railway Capacity Allocation Modeling Using a Genetic Algorithm
Author
정인재
Keywords
TRAIN TIMETABLING PROBLEM; ROUTING TRAINS; REAL-TIME; RECOVERY
Issue Date
2017-10
Publisher
NATL ACAD SCIENCES
Citation
TRANSPORTATION RESEARCH RECORD, no. 2608, page. 115-124
Abstract
The South Korean government has established guidelines for railway capacity allocation. Railway transport services are provided by a monopoly company, which together with the guidelines, has hampered research into railway capacity allocation in South Korea. Recently, a new high-speed railway company has been established. Therefore, there is a pressing need for a fair and objective railway capacity allocation procedure. A model was developed to be applicable to South Korean high-speed railway capacity allocation, which is optimized by viewing the railway network as a location-time network. Because railway capacity allocation in South Korea is an administered process, various requirements must be followed; the model uses a genetic algorithm for such requirements. Two test scenarios were used to validate the proposed model, the solution to which resolves more than 70% of conflicts within 20 iterations (148 min). When an attempt is made to schedule infeasible trains compulsively, it is impossible to do so without relaxing one or more constraints. The average headway among real operating trains is very close to the results of the analysis. The proposed model with a genetic algorithm is a rational solution.
URI
https://journals.sagepub.com/doi/10.3141/2608-13https://repository.hanyang.ac.kr/handle/20.500.11754/115829
ISSN
0361-1981; 2169-4052
DOI
10.3141/2608-13
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > INDUSTRIAL ENGINEERING(산업공학과) > Articles
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