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Did you know that hotspot maps, showing the parts of NSW with the highest density of recorded crimes per square metre, are available in the NSW Crime Mapping Tool. The default map type in the tool is a rate map which shows the rate of crime per resident population across a whole suburb, council or postcode. Hotspot maps, however, allow you to see down to street level where crime is volumetrically densest per metre. Unfortunately hotspot maps are only available for certain offences (listed below); when you have chosen an offence for which a hotspot map is available a button titled 'Hotspots' will appear in the top toolbar of the Crime Mapping Tool.
Example: Mapping car theft hotspots in Newcastle
Download a pdf version of the map
Download table of motor vehicle theft by premises type
How we build hotspot mapsHotspot maps are a representation of the density of recorded criminal incidents per square metre across the target area. In this case the target area for the hotspot map was the whole of NSW, zoomed in over the Newcastle area. The hotspot map was calculated using a 50m2 output cell (meaning we divided the target area into a grid of thousands of 50m2 squares) and a 500m search radius (meaning for each cell we looked for assaults occurring both in the cell and in the surrounding 500m). In the hotspot algorithm, incidents closer to the centre of the 500m radius have a higher weighting on the density calculation than those approaching the outer limits of the search area. Every cell is then ranked according to its density score. Here the most dense 30% of cells in the State are displayed in colour on the map. Increasing density is represented by the progression of colours from shades of yellow through to red. It must be noted that incidents do still occur in areas which are not identified as hotspot.To see the hotspots for motor vehicle theft in your area, visit our crime mapping tool. Hotspot maps are also available for the following offences:
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Updated 25 November 2015