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Characteristics of unprotected left-turn accidents at signalised intersections

At signalized intersections, a major source of conflict is unprotected left-turning traffic. Relative crash risk is investigated by this study for frequently occurring unprotected left-turn accidents at signalized intersections. To perform this traffic safety analysis, quasi-induced exposure technique is used, based on the 1999-2001 Florida Accident Database. Numerous factors are shown by statistical tests to be associated with unprotected left-turn accidents, including type of vehicle, residence code, physical defect, alcohol use, driver gender, driver age, posted speed limit, weather, lighting conditions, divided/undivided highway, and highway lane numbers.