Key Takeaways
- Driver inattention causes 42% of left-turn accidents nationwide per NHTSA 2021.
- Failure to yield at intersections led to 38% of left-turn crashes in urban settings, IIHS 2020.
- Speeding contributed to 25% of fatal left-turn accidents in 2022 per CDC data.
- In 2022, left-turn accidents comprised 36.1% of all intersection crashes in the United States, totaling approximately 688,000 incidents.
- California reported 45,234 left-turn related crashes in 2021, representing 28% of statewide intersection collisions.
- Nationally, left turns account for 53% of intersection fatalities according to IIHS data from 2018-2022.
- Roundabouts reduced left-turn crashes by 78% at retrofitted intersections, FHWA 2022.
- Protected left-turn signals decreased accidents by 45% in 500+ sites, IIHS 2021.
- ADAS left-turn assist prevented 62% of potential crashes in tests, Euro NCAP 2022.
- Left-turn accidents resulted in 12,344 fatalities across the US in 2021, NHTSA.
- 40% of left-turn crash victims sustained serious injuries requiring hospitalization, IIHS 2022.
- Average cost of left-turn accident claims reached $28,500 in 2022 per Insurance Journal.
- Males aged 18-34 comprised 42% of left-turn accident drivers, NHTSA 2021.
- Seniors over 65 were involved in 28% of fatal left-turn crashes, IIHS 2022.
- Urban males had 3.1x higher left-turn crash rate than females, CDC 2021.
Left-turn crashes often stem from inattention, failure to yield, and speeding, driving major injury and fatality totals.
Related reading
01 · Category
Causal Factors20 stats
Causal Factors Interpretation
02 · Category
Incidence Rates20 stats
Incidence Rates Interpretation
03 · Category
Prevention and Safety Measures19 stats
Prevention and Safety Measures Interpretation
More related reading
04 · Category
Severity and Outcomes20 stats
Severity and Outcomes Interpretation
05 · Category
Victim Demographics20 stats
Victim Demographics Interpretation
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Thomas Lindqvist. (2026, February 13). Left Turn Accident Statistics. Gitnux. https://gitnux.org/left-turn-accident-statistics
Thomas Lindqvist. "Left Turn Accident Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/left-turn-accident-statistics.
Thomas Lindqvist. 2026. "Left Turn Accident Statistics." Gitnux. https://gitnux.org/left-turn-accident-statistics.
Sources & references
61 datasets cited across this report · attribution is report-level

