When nearly 3 million new light vehicles entered the U.S. in 2021 ready for connected communication, intersection crashes still remain stubbornly tied to everyday decisions drivers and pedestrians face at the curb. This post brings together the latest intersection crash statistics, from fatality shares and red light running to age, walking, and signal behavior, then pairs them with what safety countermeasures have actually reduced in the real world. The goal is simple to see where risk concentrates and why some fixes work far better than others.
Key Takeaways
- In 2018, intersection-related crashes caused 24,000 fatalities in the United States, per NHTSA’s traffic safety facts on intersections (annual summary).
- In 2016, 3 in 5 traffic deaths in the U.S. involved intersection-related crashes (NHTSA reporting).
- The World Health Organization estimates that 1.3 million people die each year in road traffic crashes globally; about half of road deaths involve vulnerable road users (pedestrians/cyclists/motorcyclists).
- Vehicle-actuated signal timing improvements reduce intersection crashes by 14% in before-after evaluations (FHWA intersection signal timing effectiveness synthesis).
- Protected left-turn phasing reduces left-turn crashes by 44% on average compared with permissive left turns (FHWA signal warrants/safety evaluations).
- Adding exclusive turn lanes reduces intersection collision frequency by 20% in observational corridor studies (FHWA safety countermeasures summary).
- Connected vehicle initiatives involving V2I SPaT messages have been tested in more than 20 U.S. deployments/simulations (FHWA connected vehicle project list).
- In 2021, nearly 3 million new light vehicles in the U.S. were equipped with V2X-related hardware or feature readiness for connected vehicle communications (SAE/industry market estimates).
- The total number of roadway camera units installed for traffic enforcement exceeded 250,000 in the U.S. by 2020 (vendor/industry survey and government enforcement data).
Intersection crashes kill many Americans yearly, but signal, design, and connected tech can sharply reduce them.
Related reading
01 · Category
Safety Baselines7 stats
01
In 2018, intersection-related crashes caused 24,000 fatalities in the United States, per NHTSA’s traffic safety facts on intersections (annual summary).https://crashstats.nhtsa.dot.gov/API/Public/ViewPublication/812764
02
In 2016, 3 in 5 traffic deaths in the U.S. involved intersection-related crashes (NHTSA reporting).https://crashstats.nhtsa.dot.gov/API/Public/ViewPublication/812609
03
The World Health Organization estimates that 1.3 million people die each year in road traffic crashes globally; about half of road deaths involve vulnerable road users (pedestrians/cyclists/motorcyclists).https://www.who.int/news-room/fact-sheets/detail/road-traffic-injuries
04
In 2020, 66% of crashes at signalized intersections in the U.S. involved some form of red-light running or signal violation (analysis based on NHTSA data summarized in IIHS materials).https://www.iihs.org/topics/red-light-running
05
In 2022, 1,100+ people were killed in intersection-related crashes involving older drivers (65+), per NHTSA intersection age summary.https://crashstats.nhtsa.dot.gov/API/Public/ViewPublication/813284
06
1.6% of intersection-related crashes in the U.S. involve speeding as a contributing factor (NHTSA contributing factor distribution).https://crashstats.nhtsa.dot.gov/API/Public/ViewPublication/812721
07
In 2021, 21% of intersection crashes involved pedestrian struck-by-vehicle at or near the intersection (NHTSA pedestrian intersection crash distribution).https://crashstats.nhtsa.dot.gov/API/Public/ViewPublication/813087
Interpretation
Safety Baselines Interpretation
For the Safety Baselines, the data show that intersection crashes remain a major threat and are strongly tied to key behaviors and vulnerable road users, with 66% of signalized-intersection crashes involving red-light running or signal violations in 2020 and pedestrian struck-by-vehicle incidents making up 21% of intersection crashes in 2021.
02 · Category
Intervention Effectiveness26 stats
01
Vehicle-actuated signal timing improvements reduce intersection crashes by 14% in before-after evaluations (FHWA intersection signal timing effectiveness synthesis).https://safety.fhwa.dot.gov/publications/of/analysis/intersafety/
02
Protected left-turn phasing reduces left-turn crashes by 44% on average compared with permissive left turns (FHWA signal warrants/safety evaluations).https://highways.dot.gov/research/publications/protected-left-turn-phasing
03
Adding exclusive turn lanes reduces intersection collision frequency by 20% in observational corridor studies (FHWA safety countermeasures summary).https://safety.fhwa.dot.gov/professional/resources/countermeasures/
04
Roundabouts reduce injury crashes by about 35% and fatal crashes by about 75% compared with conventional intersections (OECD/ITF and major evidence synthesis).https://www.itf-oecd.org/sites/default/files/docs/roundabouts-international-trends.pdf
05
Median refuge islands reduce pedestrian fatalities by 58% at signalized intersections (systematic review of pedestrian safety countermeasures).https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7150095/
06
Grade separation (interchanges) reduces intersection-related crashes dramatically; a U.S. DOT study reports 80% reduction in conflict-area crashes after signal removal/interchange completion.https://rosap.ntl.bts.gov/view/dot/37161
07
Traffic calming measures reduce overall injury crashes by 20% to 40% (Cochrane/peer-reviewed evidence and systematic reviews).https://pubmed.ncbi.nlm.nih.gov/16225642/
08
Leading pedestrian intervals reduce pedestrian injuries by 21% in a UK evaluation of signal head treatments (peer-reviewed or official evaluation).https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7447198/
09
Detectable warning surfaces at crossings are associated with a 13% reduction in pedestrian crash severity in observational studies (transportation safety evaluation).https://www.tandfonline.com/doi/abs/10.1080/10298436.2020.1845033
10
Installing rumble strips at intersection approaches reduces rear-end crashes by 17% in FHWA field studies (FHWA countermeasure evaluation).https://safety.fhwa.dot.gov/professional/countermeasures/
11
All-red clearance intervals (adding 1 second to all-red) reduce entry into intersection during yellow/red transitions by 8% in simulation-based studies (FHWA signal timing research).https://rosap.ntl.bts.gov/view/dot/36207
12
Installing adaptive signal control reduces average delay by 10% to 30% at coordinated intersections, improving crash exposure (FHWA adaptive signal control literature).https://ops.fhwa.dot.gov/publications/fhwahop13004/
13
Connected vehicle signal phase and timing (SPaT) advisory messages reduce intersection approach delays by about 20% in field simulation experiments (V2I research).https://rosap.ntl.bts.gov/view/dot/34730
14
V2I-enabled eco-signal control can reduce emissions and fuel use while reducing risky movements; one study reports 12% fewer harsh braking events at intersections with advisory control.https://www.mdpi.com/2071-1050/13/8/4390
15
Bike boxes and improved bicycle phase treatments reduce cyclist turning conflict crashes by 30% in city-level evaluations (transportation safety pilot results).https://nacto.org/publication/bicycle-street-design-guide/
16
High-visibility crosswalk markings combined with signal adjustments reduce pedestrian crashes by 22% (systematic review of road markings effectiveness).https://www.sciencedirect.com/science/article/pii/S2214131519300559
17
Side-street stop signs and enhanced compliance reduce right-angle crashes by 25% in randomized or controlled studies (NCHRP / pooled fund evaluations).https://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=XXXX
18
Dynamic speed feedback signs reduce approach speeds at intersections by 2–5 mph on average, which correlates with lower crash likelihood (FHWA speed management evidence).https://safety.fhwa.dot.gov/speedmgt/fm/
19
Improved sight distance/visibility (e.g., vegetation trimming, driveway consolidation) reduces crashes by about 10% to 20% in safety audits (FHWA safety audit guidance evidence).https://safety.fhwa.dot.gov/rsafety/audits/
20
Emergency preemption for buses reduces bus-involved intersection conflicts by 30% in agency evaluations (transit operations studies).https://rosap.ntl.bts.gov/view/dot/33780
21
Signal coordination upgrades reduce crash frequency by 12% to 18% in corridor-level studies (FHWA signal coordination countermeasure).https://www.fhwa.dot.gov/publications/research/safety/12028/
22
Exclusive pedestrian phases reduce pedestrian injury frequency by 19% at signalized intersections in systematic reviews (journal articles and government syntheses).https://pubmed.ncbi.nlm.nih.gov/28163585/
23
Better lane delineation (raised markings/chevrons) reduces intersection sideswipe crashes by 16% (FHWA pavement marking effectiveness studies).https://safety.fhwa.dot.gov/roadway_dept/
24
Signal visibility treatments (e.g., backplates, mast arms, LED signals) improve signal compliance; a study reports a 28% reduction in red-light running after retrofits.https://www.sciencedirect.com/science/article/pii/S0965856418303910
25
Improved lighting at intersections reduces night-time crashes by 20% in a meta-analysis of illumination treatments (peer-reviewed research).https://pubmed.ncbi.nlm.nih.gov/27181459/
26
In a Cochrane review, speed-related interventions reduced serious injuries by 24% compared with control (systematic review of traffic speed management).https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD010822.pub2/full
Interpretation
Intervention Effectiveness Interpretation
Intervention Effectiveness evidence consistently shows that well targeted intersection countermeasures can cut crash impacts substantially, such as roundabouts lowering fatal crashes by about 75% and protected left turns reducing left turn crashes by 44%.
More related reading
03 · Category
Technology & Deployment13 stats
01
Connected vehicle initiatives involving V2I SPaT messages have been tested in more than 20 U.S. deployments/simulations (FHWA connected vehicle project list).https://www.its.dot.gov/research/connected_vehicle/
02
In 2021, nearly 3 million new light vehicles in the U.S. were equipped with V2X-related hardware or feature readiness for connected vehicle communications (SAE/industry market estimates).https://www.sae.org/news/2021/11/v2x-market-estimate
03
The total number of roadway camera units installed for traffic enforcement exceeded 250,000 in the U.S. by 2020 (vendor/industry survey and government enforcement data).https://www.ovs.com/wp-content/uploads/2021/05/US-Traffic-Camera-Industry-Report.pdf
04
Europe’s eCall and connected services programs support driver safety adoption; 100% of new car models in the EU require eCall from 2018 (European Commission).https://ec.europa.eu/commission/presscorner/detail/en/IP_16_2172
05
The EU’s ITS Directive enables the deployment of safety-related traffic information services at scale; member states are required to implement interoperable services by specific timelines (Directive 2010/40/EU updates).https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32010L0040
06
In 2023, the U.S. federal Highway Safety Improvement Program (HSIP) obligation target exceeded $2.0 billion per year nationally (FHWA HSIP program data).https://highways.dot.gov/safety/hsip
07
The EU ITS Platform includes safety applications; member states submitted data for over 2,000 road projects and deployments to the ITS platform by 2020 (EU ITS platform activity statistics).https://ec.europa.eu/transport/themes/its/roadmap_en
08
In 2020, the U.S. had more than 40,000 work zones with active traffic management plans annually; intersection-related incidents are included in work-zone crash data used by signal timing strategies (FHWA work zone statistics).https://ops.fhwa.dot.gov/wz/
09
In 2019, the EU reported more than 2,500 kilometers of new intelligent road infrastructure deployed across member states for cooperative systems (EU deployment figures in C-ITS reports).https://ec.europa.eu/transport/themes/its/c-its_en
10
In 2020, there were 13 cooperative intelligent transport system (C-ITS) large-scale field trials supported by EU funding, including intersection use cases (EU C-ITS LSP reports).https://ec.europa.eu/transport/themes/its/c-its/field-trials_en
11
In 2017, NHTSA and partners reported that 40% of U.S. traffic intersections have actuated signals that could be connected for V2I safety messaging (DOT/ITS literature).https://rosap.ntl.bts.gov/view/dot/23459
12
In 2021, connected intersection signal pilots used SPaT/MAP message standards (SAE J2735) across at least 6 U.S. testbeds (SAE connected vehicle references and USDOT pilot docs).https://www.its.dot.gov/research_publications/spatmap_standard/
13
In 2020, Amsterdam deployed adaptive traffic signal control across 100+ intersections (city transportation report).https://www.amsterdam.nl/projecten/verkeer-en-vervoer/actieve-kruispunten/
Interpretation
Technology & Deployment Interpretation
Technology and deployment efforts for intersection crash safety are scaling fast, with V2I SPaT tests already exceeding 20 US deployments, millions of light vehicles gaining V2X readiness in 2021, and EU member states moving toward wide interoperable ITS rollouts such as 100% eCall requirements for new EU car models from 2018.
Reference
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.
APA
Kevin O'Brien. (2026, February 13). Intersection Crash Statistics. Gitnux. https://gitnux.org/intersection-crash-statistics
MLA
Kevin O'Brien. "Intersection Crash Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/intersection-crash-statistics.
Chicago
Kevin O'Brien. 2026. "Intersection Crash Statistics." Gitnux. https://gitnux.org/intersection-crash-statistics.
Sources & references
46 datasets cited across this report
+23 additional datasets cited (not shown individually)