American Journal of Applied Sciences

Application of Harmony Search to Vehicle Routing

Zong Woo Geem, Kang Seok Lee and Yongjin Park

DOI : 10.3844/ajassp.2005.1552.1557

American Journal of Applied Sciences

Volume 2, Issue 12

Pages 1552-1557


A phenomenon-inspired meta-heuristic algorithm, harmony search, imitating music improvisation process, is introduced and applied to vehicle routing problem, then compared with one of the popular evolutionary algorithms, genetic algorithm. The harmony search algorithm conceptualized a group of musicians together trying to search for better state of harmony. This algorithm was applied to a test traffic network composed of one bus depot, one school and ten bus stops with demand by commuting students. This school bus routing example is a multi-objective problem to minimize both the number of operating buses and the total travel time of all buses while satisfying bus capacity and time window constraints. Harmony search could find good solution within the reasonable amount of time and computation.


© 2005 Zong Woo Geem, Kang Seok Lee and Yongjin Park. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.