Determining the quickest route for emergency response vehicles
G.I.S. can be used to determing traffic patterns at a given time of day and find the quickest route.
Determining the cost of damage caused by natural disasters
G.I.S. can help determine the cost of damage caused by a natural disaster by determining where the damage occured, where, and to what degree.
Water quality analysis
G.I.S. can be used to determine the quality of water in places to help locate the source of contamination.