This study developed a biobjective optimization model for planning maintenance and renewal actions related to track geometry in a railway network. The problem was modeled as a biobjective integer optimization problem from the perspective of the infrastructure manager. Two objective functions were minimized: (a) the total costs of planned maintenance and renewal actions and (b) the total number of train delays caused by speed restrictions. A small example for a simple network was analyzed in which the optimal Pareto frontier was found through a simulated annealing technique.
Biobjective Optimization Model for Maintenance and Renewal Decisions Related to Rail Track Geometry
Transportation Research Record
Transportation Research Record: Journal of the Transportation Research Board ; 2261 , 1 ; 163-170
2011-01-01
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Biobjective Optimization Model for Maintenance and Renewal Decisions Related to Rail Track Geometry
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