Who You Gonna Call (GIS 4048- Applications in GIS)

 With this module, we move from Natural Disasters to Homeland Security. Our task was to create two maps, one completed with an analyze of police stations by crime proximity and the other using density mapping.

To begin, the police stations were geocoded from a list of addresses given. The total offenses in 2011 were determined by exporting the offenses from a Excel file and then creating a table. A multiple ring buffer with distances of 0.5, 1, and 2 miles determined how many crimes occured in relation to the police station locations. A spatial join was then done to connect the crimes to the particular station. What is seen in the map are proportional symbols, ranging in size to the percentage of crime committed. Also, a table displays the total offenses along with the type of offense that had occurred.

The second map is a density map showing the offense density of burglary, homicide, and sexual abuse along with the population density. This was accomplished using the kernal density tool, with a search radius of 605 square kilometers. As seen in the map, burglaries and sexual abuse tend to occur more in densely populated areas while homicides occur in lower density areas.



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