WBEZ obtained data from the Illinois Department of Transportation, Division of Traffic Safety from 2009 through September 7, 2012 of this year, to see exactly where these dooring accidents are occurring -- and what type of accidents they result in. There have been 577 reported doorings during that time period.
Utilizing data from Chicago Police Department, WBEZ shows you, but also asks some hard questions. A cursory look at the map reveals that gang territories appear to span all over the city's South and West Sides, but also show up in pockets on the North Side. Also, according to the map, a territory can be as small as a city block, or as large as an entire police district or neighborhood.