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You are here: Home / News / IIHS Researchers Find Crash Rates Increased After Marijuana Legalization

IIHS Researchers Find Crash Rates Increased After Marijuana Legalization

July 20, 2022 By CollisionWeek Editor

Accidents that caused injuries and fatalities were up overall, though results varied widely by state as some saw decreases.

New research shows that crash rates in states that legalized marijuana increased following legalization. The research paper Changes in Traffic Crash Rates After Legalization of Marijuana: Results by Crash Severity by Charles M. Farmer , Ph.D., Samuel S. Monfort , Ph.D., and Amber N. Woods , Ph.D. from the Institute for Highway Safety (IIHS), was yesterday in the Journal of Studies on Alcohol and Drugs online.

The study was designed to estimate the effects of marijuana legalization and the subsequent onset

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Filed Under: News Tagged With: Accident Frequency, Insurance Institute for Highway Safety, Marijuana Legalization, Traffic Fatalities

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