ESRI Arc GIS Network Analyst was used to determine routes for each of the criteria used in this study. The Network Analyst extension solves several routing problems, route analysis, closest facility, and Origin Destination (OD) cost matrix. These tools are all based on Dijkstras Algorithm, a well known algorithm that finds the shortest path on a graph (Dijkstra, 1959).Route Analysis provides the shortest route from a starting point to one (or more) destinations in a network. Closest Facility determines routes from incidents and facilities, determining which facility is closer to each incident. Closest facility can solve for travel from the incident to the facility or from the facility to the incident. Closest facility determines the costs for traveling to the facility, as well as provides driving directions.