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Randy Krum infographic designerRandy Krum

President of InfoNewt.
Data Visualization, Infographic Design, Visual Thinking, Product Development and Marketing professional fascinated by good infographics.  Always looking for better ways to get the point across.

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Entries in heatmap (2)

Wednesday
Sep162009

Oxford Crime Heatmaps from the BBC


As part of the BBC launching thier new show called The Truth About Crime, they have launched a new "Crime Map" website that uses heatmaps to show real crime data for Oxford, England.  The heatmaps are visual representations of all the crime data available for the 12-month period from November 2007 to November 2008.

The website is designed to allow users to explore crime patterns, discover more about potential risks and take action to prevent crime.  The site features a specifically commissioned crime map of Oxford created with data supplied by the city's emergency services.

Why are you using heatmaps?
There are a number of methods for mapping crime. Currently, the technique most often used is to map crime data according to geographic areas such as postcodes, census output areas or police 'beat-codes'. The geographic areas chosen to map crime data – such as 'beat-codes' by the police – are often done so because these services deploy their resources according to their chosen geographical areas.
However, as these geographical areas vary greatly in size, when crime data is plotted on a map it is often difficult for a member of the general public to properly see and understand which areas have high or low crime rates. A large area may seem to have more crime than a small area even though this is simply because there is more space and people in that area. A small area with high crime might be hard to spot because it is simply physically smaller on the map, and therefore harder to see.
After extensive consultation with a host of experts in this specialist area, we have decided to use 'heatmaps' to display our crime data, since these offer a clear way for us all to see patterns of crime, without requiring us to have the expert knowledge of crime data analysts, nor a prior knowledge of arbitrary geographical areas. These 'heatmaps' represent the relative amount of crime according to a sliding scale of colour (as detailed in the "Key"), and provide a sense of the area where a type of crime is happening without disclosing the exact location that it took place – so as to protect the anonymity of victims
Heat maps such as these have not previously been used to any great extent in the UK, but have been used in the USA and Canada.
A number of different maps are available showing Crime Patterns Over Time, Burglary & Theft, Violent Crime, Anti-Social Behavior and the ability to compare to your own neighborhood (if you live in the U.K.)

Monday
Jan122009

Halo 3 HeatMaps


A while back Bungie.net, the makers of the Halo series of games, started tracking data on their servers about how their different online multiplayer maps are preforming.  They converted the data on kills and deaths in the multiplayer games into heatmaps, and then started publishing the maps online for everyone to see.

The advantages to players are that you can see places to avoid (areas with the highest deaths), and the locations from where the most kills come from.  The map above shows the total data for the map called The Pit.  But you can narrow down the information based on the type of weapon used.  For example the map below shows the locations of the kills made with the sniper rifle.  Meaning that shooting from these locations have been the most successful.  (Also helpful if you keep getting killed by snipers and can't find them)


"Heatmaps are the Doppler Radar System of Death in Halo 3. We're tracking encounters, weapons used and their results in a given game, collecting that data and sharing it with players visually. The key here is 'the darker the red, the more frequent the deaths (or kills, depending on the parameters)'," Bungie explains in its weekly update.