Facility location problems may be classified into two main
categories: single facility location and multi-facility location
[7]. One technique for making single facility location decisions
is the Weber model, which employs a center-of-gravity
approach for site selection, and was employed by Drezner
and Wesolowsky [8] and Wesolowsky [9]. Various techniques
for locating multiple facilities simultaneously were studied by
Brimberg et al., such as alternative locationeallocation,
projection, Tabu search, p-median, genetic search, and
different variable neighborhood searches [10]. Additional
traditional facility location analysis techniques include location
rating factor and loadedistance [11].