MIT Researches Map Cell Phone Usage

stlhawkeye writes "MIT researchers with the Mobile Landscape Projects have mapped a city based on cell phone usage. The article includes a map of Graz, Austria with a color-coded overlay indicating cell phone usage in various parts of the city. Using call origin and destination data, they are able to not only reverse-engineer a topographic map of the geography and landscape, but one of phone usage as well. The implications of the research have practical applications in law enforcement, emergency management, and traffic management. There are also, of course, privacy implications."