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Modeling data from the South Canyon fire that led to the deaths of 14 firefighters near Glenwood Springs , Colorado , in 1994 vividly demonstrated how the weather and terrain affected the path taken by fire . DEM data was modeled using the ArcView 3D Analyst extension , and attribute data created from scanned maps and aerial photos from the official report was incorporated into the model . Studying incidents such as the South Canyon fire using GIS can help improve fire response policies and training to minimize danger to firefighting personnel . * Case Study Courtesy of ESRI ArcUser Magazine PtGIS for ISO Rating Improvement The Indian River County Emergency Services Department can use GIS to improve its ISO rating . Less expensive fire insurance premiums are the result of a lower ISO rating . The ISO rating process requires fire departments to have the following resource documents and mapping capabilities : 1 . Community Street Map - To Scale Plotted information Base • Named streets • Community boundary lines • Areas NOT built upon • Fire Station locations 2 . Community Water Map - To Scale Plotted Information Base • Named streets • Water mains by size • Fire hydrants - numbered • Water tanks / Storage - capacity • Water pumping stations • Pressure zone ( s ) • Static water suction points • Dry hydrants 3. Map - Drawings of Water Supply Works Plotted Information Base • Intake supply line - size • Filtration-Purification Arrangement - capacity gpm • Pump Arrangement - capacity vs . head • Clear well ( s ) : arrangement/capacity • Primary feeders : size arrangement 4. Fire District Map - To Scale Plotted Information Base • Fire Protection Response Boundary - served by community • Five mile response boundary • Boundary of areas served by hydrants • Static water suction points • Dry hydrants • Bridge capacities • Schools w • Shopping Centers • Commercial Centers 50 GIS Needs Assessment and Implementation Plan Chapter 1 - Departmental GIS Needs Assessment