This week focused on using different techniques within ArcGIS to analyze crime statistics and then create maps based off our analysis.
The first map that was created was using statistical crime data to determine where there may be gaps in police coverage that could be filled by creating a new police station/substation. This map also analyzed what were the most common forms of crime during 2011. As you can see, almost 75% of all crimes happened within 1 mile of a police station. Now despite this, there were a couple of potential gaps that I proposed new stations for. The first one in the south-east would cover a large area that was outside of the 2 mile coverage and reduce some of the burden on the 7th District station. The second proposed station is in the north west and would fill a small coverage gap, but more importantly, it could take some of the burden from the 2nd and 4th District stations.
The first map that was created was using statistical crime data to determine where there may be gaps in police coverage that could be filled by creating a new police station/substation. This map also analyzed what were the most common forms of crime during 2011. As you can see, almost 75% of all crimes happened within 1 mile of a police station. Now despite this, there were a couple of potential gaps that I proposed new stations for. The first one in the south-east would cover a large area that was outside of the 2 mile coverage and reduce some of the burden on the 7th District station. The second proposed station is in the north west and would fill a small coverage gap, but more importantly, it could take some of the burden from the 2nd and 4th District stations.
The second map I created focused on three types of crimes, burglary, homicide, and sex abuse. The three map panels you will see show the different frequencies of the different crimes and that information is overlayed on top of a population density sublayer. While it is a little difficult to see the population density clearly, you can gather by the dark undertones where there are more people and see whether population is more of a factor for certain crimes.
That is all for now. Let me know what you think and happy mapping.
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