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Traffic fatality and serious injury crashes from 2014-2018 in the city of Houston. Crashes reported to Texas Department of Transportation. Across all road users (motor vehicle-motor vehicle, motor vehicle-pedestrians, motor vehicle-bicyclist). Local, major, and frontage roads according to STAR*Map (Southeast Texas Addressing and Referencing Map). Excludes major highways. Minimum 4.5 severe crashes (deaths and serious injuries) per half-mile segment. 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