@article{ref1,
title="Biobjective optimization model for maintenance and renewal decisions related to rail track geometry",
journal="Transportation research record",
year="2011",
author="Andrade, A. Ramos and Teixeira, P. Fonseca",
volume="2261",
number="",
pages="163-170",
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.<p />",
language="en",
issn="0361-1981",
doi="10.3141/2261-19",
url="http://dx.doi.org/10.3141/2261-19"
}