%0 Journal Article
%T Biobjective optimization model for maintenance and renewal decisions related to rail track geometry
%J Transportation research record
%D 2011
%A Andrade, A. Ramos
%A Teixeira, P. Fonseca
%V 2261
%N 
%P 163-170
%X 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 />
%G en
%I SAGE Publishing
%@ 0361-1981
%U http://dx.doi.org/10.3141/2261-19