Simple Single and Multi-Facility Location Models using Great Circle Distance

Facility location problems (FLP) are widely studied in operations research and supply chain domains. The most common metric used such is the distance between two points, generally Euclidean (ED). When points/ locations on earth surface considered, ED may not be appropriate to analyse with. Hence, while modelling a facility earth, great circle (GCD) preferable for computing optimal location(s). different demand points assigned with weights based importance requirements. Weiszfeld’s algorithm employed locate an point(s) iteratively. point termed as “Geometric Median”. This paper presents simple models combining GCD, points. demonstrated single multi-facility problems.