Andrade, António Ramos and Teixeira, P. Fonseca (2012) Biobjective Optimization Model for Maintenance and Renewal Decisions Related to Rail Track Geometry. Transportation Research Record: Journal of the Transportation Research Board, 2261 (-1). pp. 163-170. ISSN 0361-1981
Abstract

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.

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