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TRAFFIC LIGHTS AND CRASH ACCIDENTS AT STREET INTERSECTION


INTENTION

Taken Squirrel Hill as an example, can setting up more traffic lights reduce the crash accidents? Two data sets were chosen to explore this question – Allegheny County Crash Data and Pittsburgh Traffic Signals Data. Allegheny County Crash Data contains all the crush accidents reported in 2014 (only 2014 data is operatable on Carto). The meta data includes time, location and injured number. It also identifies the type and possible reason of the crash but it doesn’t have a clear definition of what each number represents. Thus, the missing of the field actually leaves a room for this analysis.


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