TY  - JOUR
PY  - 2011//
TI  - Biobjective optimization model for maintenance and renewal decisions related to rail track geometry
JO  - Transportation research record
A1  - Andrade, A. Ramos
A1  - Teixeira, P. Fonseca
SP  - 163
EP  - 170
VL  - 2261
IS  - 
N2  - 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 />
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/10.3141/2261-19
ID  - ref1
ER  -