Left-turning vehicles in 45.1% of fatal two-vehicle motorcycle crashes
Left-turning vehicles were involved in 45.1 percent of fatal two-vehicle motorcycle crashes across the United States in 2024. An analysis by Blakeley Law of federal records identified 1,532 such crashes, more than twice the number involving both vehicles traveling straight. The findings shift attention beyond rider behavior to the dangers created when motorcycles and other vehicles intersect at crossings.
Crash Configuration | Fatal Crashes | Share
Other vehicle turning left | 1,532 | 45.1%
Both vehicles traveling straight | 689 | 20.3%
Other configurations | 1,175 | 34.6%
Total | 3,396 | 100%
Left-turn conflicts exceeded straight-travel crashes by 843 cases and were approximately 2.2 times as common in the two-vehicle fatal population.
Of the 5,950 motorcycle operators killed in 2024, 3,825 died in crashes involving another vehicle, representing 64.3 percent of operator fatalities. In fatal two-vehicle crashes, 78 percent of motorcycles were struck at the front, compared with 6 percent struck from behind. Collisions with another moving vehicle were the most harmful event for 3,790 motorcycles. Motorcyclists accounted for 15.9 percent of all U.S. traffic deaths despite representing just 0.7 percent of vehicle miles traveled. Fixed-object collisions accounted for approximately 24 percent of motorcycles involved in fatal crashes, compared with 16 percent of passenger cars.
A peer-reviewed study published in Transportation Research Record in May 2024 examined factors associated with motorcycle collisions involving left-turning vehicles at urban intersections. Researchers Henrick Haule and Eric Dumbaugh analyzed motorcycle and other motor vehicle collisions at South Florida intersections between 2015 and 2017. Using logistic regression and Bayesian network analysis, the researchers examined how intersection configurations, traffic controls, roadway types, time of day, weather conditions, and driver characteristics were associated with these collisions. The findings broaden the discussion beyond whether individual drivers notice approaching motorcycles to include road design and traffic-control arrangements.
Separate research published in Traffic Injury Prevention in 2023 provides additional national evidence. Insurance Institute for Highway Safety researcher Eric Teoh examined U.S. motorcycle crash records from 2017 through 2021 and found that another vehicle turning left across an approaching motorcycle's path accounted for 26 percent of fatal two-vehicle motorcycle crashes.
The prevalence of left-turn conflicts highlights a motorcycle safety challenge involving interactions between different road users rather than rider behavior alone. According to IIHS, 65 percent of motorcyclist fatalities in 2024 occurred on urban roads. Another 56 percent occurred on major roads other than interstates and freeways. The figures represent separate roadway classifications and do not establish how many left-turn fatalities occurred within either setting. NHTSA data show that 35.7 percent of motorcycle operators killed in 2024 died in single-vehicle crashes, leaving a substantially larger share involving other vehicles.
However, a recorded left-turn maneuver does not establish legal responsibility in every collision. The research also cannot determine how many deaths could have been prevented through specific roadway modifications or vehicle safety technologies.
NHTSA's July 2026 motorcycle safety report provides newly published federal evidence of the circumstances surrounding fatal motorcycle collisions. The National Conference of State Legislatures also updated its motorcycle safety legislative review in October 2026, identifying at least 15 motorcycle safety bills enacted across 12 states during 2025. With continuing legislative attention on motorcycle protection, the collision findings offer a timely opportunity to examine intersection safety and shared-road responsibilities.
