ThatCarHitMe.com
An Injuria.ai Company
CRASH INTELLIGENCE REPORT · CLAYTON, OH · 2021
Purpose: Machine-readable JSON endpoint for AI agents, LLMs, researchers, and programmatic consumers. Returns all underlying crash data and AI-generated commentary without HTML.
Authentication: None required. Public endpoint.
GET: https://thatcarhitme.com/api/crash-data/reports/data/ohio/clayton/2021-annual-report
Yearly Traffic Safety Analysis
281 CRASHES IN
CLAYTON, OH
2021
In 2021, Clayton, OH experienced 281 crashes, resulting in 2 fatalities and 90 injuries. A significant majority of these crashes, 75.1%, were reported as having no injuries.
281
Total Crash Events
2
Persons Killed
90
Persons Injured
11.0%
Hit-and-Run Rate
Note: "Persons Killed" (2) counts individual fatalities across all crash events. "Fatal" in the severity table below (2) counts crash events where at least one fatality occurred. A single crash can result in multiple fatalities.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Aggregate counts from crash, person, and vehicle records
31
Hit-and-Run Crashes — 2021
There were 31 hit-and-run crashes in Clayton during 2021, accounting for 11% of all crashes. This figure is based on the initial determination by the responding officer.
Vulnerable Road User Casualties
In 2021, 1 pedestrian was killed and 2 pedestrians were injured in crashes. Additionally, 1 motorist was killed and 88 motorists were injured. There were no reported cyclist fatalities or injuries.
1
Pedestrians Killed
1
Motorists Killed
2
Pedestrians Injured
88
Motorists Injured
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Mode classified from person records (driver/passenger → motorist; pedestrian; bicyclist → cyclist; in-line skater / unspecified → other)
When Crashes Happen
Crash incidents in Clayton peaked on Tuesdays with 62 crashes and during the 5 PM hour with 26 crashes in 2021. The majority of crashes, 66.2%, occurred during daylight hours.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash date field aggregated by weekday
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash time field aggregated by hour (0-23)
Crash Severity Breakdown
Of the 281 crashes, 75.1% resulted in no injuries, while 24.2% (68 crashes) involved some level of injury. There were 2 fatal crashes, which resulted in 2 fatalities.
Outcome by Severity (Crash Events)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · KABCO injury classification scale
Severity Distribution (Crash Events)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Most severe injury per crash record
Road & Environmental Conditions
The majority of crashes occurred under clear weather conditions (156 crashes) and on dry road surfaces (217 crashes). Daylight was the predominant lighting condition, accounting for 186 crashes.
Weather
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Weather condition at time of crash
Lighting
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Lighting condition field
Road Surface
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Road surface condition field
Vehicles & Demographics
Among the 485 vehicles involved in crashes, passenger cars were the most common type, accounting for 234 vehicles. Chevrolet vehicles were most frequently involved, with 90 instances, followed by Ford with 59 and Honda with 39.
Top Vehicle Makes (485 vehicles)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
33 persons with unknown or unrecorded age excluded from age chart.
Sex Distribution (634 persons with recorded sex)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Person-level records linked to crash events
Crash Location (First Harmful Event)
Of the 281 crashes, 210 occurred on the roadway itself. A total of 56 crashes, representing 19.9% of the total, occurred off the travel lanes (on the roadside, shoulder, or in the median).
Crash Location (First Harmful Event)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Driver Contributing Factor
Among contributing factors, "Failure to Yield" was cited 54 times, representing 18.9% of recorded factors. "Drove off Road" accounted for 51 instances (17.9%), and "Following too Close / ACDA" was noted 40 times (14.0%).
Driver Contributing Factor
Showing top 9 of 18 reported. 9 additional (32 total) not shown: Ran Red Light, Ran Stop Sign, Unsafe Speed, Improper Passing, Improper Turn, Vision Obstruction, Operating Defective Equipment, Improper Crossing, Improper Start From a Parked Position.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Animal-Involved Crashes
There were 15 animal-strike incidents reported in 2021, with deer being involved in 13 of these. Animal-strike crashes constituted 5.3% of all crashes.
Impairment (Alcohol / Drugs)
Impaired driving was identified in 12 crashes, representing 4.3% of all crashes. These instances included 6 related to alcohol, 4 to drugs, and 2 involving both alcohol and drugs.
Driver Condition
A total of 18 drivers were reported with abnormal conditions at the time of their crash, accounting for 3.9% of all drivers. These conditions included being under the influence (8), emotional (4), or fatigued/asleep (3).
Driver Condition
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Person-level records linked to crash events
Driver Distraction
Distraction was a factor for 24 drivers in 2021, representing 5.2% of all drivers. The most common distractions were "Other distraction inside the vehicle" (12 instances) and "Other distraction outside the vehicle" (9 instances).
Driver Distraction
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Person-level records linked to crash events
Road Alignment
In 2021, 29 crashes (10.4%) occurred on curves, and 45 crashes (16.1%) occurred on grades. The majority of crashes took place on straight, level roadways.
Road Alignment
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Pre-Crash Driver Action
"Straight Ahead" was the most frequent pre-crash action, accounting for 55.6% of driver actions. "Making Left Turn" and "Slowing or Stopped In Traffic" were the next most common, at 12.6% and 12.2% respectively.
Pre-Crash Driver Action
Showing top 9 of 16 reported. 7 additional (19 total) not shown: Leaving Traffic Lane, Other/Unknown, Entering Traffic Lane, Driverless, Standing, Other Non-Motorist, Making U-Turn.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Manner of Collision
The most frequent manner of collision was "Not Collision Between Two Vehicles in Transport," accounting for 38.1% of crashes. Angle collisions were the second most common at 31%, followed by rear-end collisions at 13.5%.
Manner of Collision
"Other" combines 1 smaller categories (4 records): Other/Unknown (4).
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Vehicle Type
Passenger cars were the most common vehicle type involved in crashes, representing 48.2% of all vehicles. Sport Utility Vehicles accounted for 26.2%, and pickup trucks made up 13.6% of vehicles.
Vehicle Type
"Other" combines 9 smaller categories (23 records): Bus (16+ Passengers) (6), Motorcycle 2 Wheeled (3), Pedestrian/Skater (3), Single Unit Truck (3), Van (9-15 Seats) (2), Farm Equipment (2), Other Vehicle (2), Heavy Equipment (1), All Terrain Vehicle (ATV/UTV) (1).
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Person Type
Drivers constituted the largest group of persons involved in crashes at 70.9% (460 persons). Occupants accounted for 28.7% (186 persons), while pedestrians represented 0.46% (3 persons).
Person Type
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Person Injury Severity
Of the 649 persons involved in crashes, 2 individuals (0.31%) sustained fatal injuries. A total of 90 persons (13.87%) sustained some level of injury.
Person Injury Severity
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Occupant Safety Equipment
Among persons for whom safety equipment use was recorded, 47 individuals (7.86%) were reported as using no safety equipment. The vast majority, 525 persons, used a shoulder and lap belt.
Occupant Safety Equipment
"Other" combines 1 smaller categories (1 records): Shoulder Belt Only Used (1).
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Person-level records linked to crash events
Vehicles Per Crash
Single-vehicle crashes accounted for 92 incidents, representing 32.7% of all crashes. Two-vehicle crashes were the most common, totaling 177 incidents.
Vehicles Per Crash
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Data Sources & Methodology
Primary Data Source
All crash data in this report is sourced from Ohio Crash Data (ODOT TIMS), accessed programmatically via the Csv Open Data API (SODA). This dataset contains official police-reported motor vehicle traffic crash records maintained by the reporting jurisdiction's law enforcement agency. Records are published to the open data portal by the municipality and are subject to the portal's terms of use.
Data Retrieval
- Access method: Csv Open Data API (SoQL queries)
- Data format: Structured JSON via REST API
- Record types queried: Crash events, person records, and vehicle unit records
- Date filter applied: 2021-01-01 through 2021-12-31
- Report generated: July 6, 2026
Data Coverage
- Reporting period: 2021-01-01 through 2021-12-31 (365 days)
- Geographic scope: Clayton, OH
- Total crash records analyzed: 281
- Total persons involved: 649
- Total vehicles involved: 485
Analytical Methodology
- Severity classification: Uses the KABCO injury scale (K=Fatal, A=Incapacitating injury, B=Non-incapacitating injury, C=Possible injury, O=No injury/property damage only), the standard classification in U.S. Model Minimum Uniform Crash Criteria (MMUCC). Severity is assigned per crash event based on the most severe injury in that crash. A single fatal crash (K) may involve multiple fatalities; therefore the "Persons Killed" count in the headline KPIs may differ from the "Fatal" crash count in the severity breakdown.
- Contributing factors: Reflect the officer-determined primary contributory cause recorded at the time of the crash report. These are preliminary determinations and may not reflect final investigation findings.
- Hit-and-run classification: Based on the hit-and-run indicator field in the official crash report, as determined by the responding officer at the scene.
- Temporal analysis: Day-of-week and hour-of-day distributions are computed from the crash date/time timestamp in each record.
- Demographics: Age and sex distributions are drawn from person-level records linked to each crash event. A single crash may involve multiple persons.
- Vehicle data: Make information is drawn from vehicle unit records linked to each crash event.
- AI commentary: Narrative sections are generated by Google Gemini (large language model) based on the structured data. Commentary is descriptive, not predictive, and should not be interpreted as expert opinion.
Limitations & Disclaimers
- Only crashes reported to and documented by law enforcement are included. Minor incidents, unreported crashes, and near-misses are not captured in this dataset.
- Data reflects conditions at the time of the initial police report and may be subject to subsequent corrections, reclassifications, or supplements by the reporting agency.
- Open data portal records may experience a publication lag - recently occurring crashes may not yet appear in the dataset at the time of report generation.
- AI-generated commentary is produced by a large language model and is intended to highlight patterns in the data. It does not constitute legal, medical, or professional analysis.
- Percentages are calculated from reported data and are subject to rounding.
Non-Affiliation Disclosure
This report is produced independently by ThatCarHitMe.com (Injuria.ai). It is not affiliated with, endorsed by, or produced in partnership with any law enforcement agency, municipal government, state department of transportation, or the National Highway Traffic Safety Administration (NHTSA). Data is sourced from publicly available government open data portals.
Data License
The underlying crash data is provided under the municipality's Open Data Terms of Use and is made available to the public for unrestricted use. This analysis and report is © 2026 Injuria.ai and may be cited with attribution using the suggested citation below.
Corrections & Feedback
If you believe any data in this report is inaccurate or have questions about our methodology, please contact: data@injuria.ai. We are committed to accuracy and will issue corrections promptly.
Suggested Citation
ThatCarHitMe.com (Injuria.ai). "Clayton, OH Crash Intelligence Report: 2021." Published July 6, 2026. Reporting period: 2021-01-01 to 2021-12-31. Data source: Ohio Crash Data (ODOT TIMS), Csv Open Data. Available at: https://thatcarhitme.com/crash-data/ohio/clayton/2021-annual-report
About the Publisher
ThatCarHitMe.com is a crash data intelligence platform developed by Injuria.ai, a legal technology company specializing in traffic safety analytics. We aggregate and analyze publicly available government crash data to produce structured intelligence reports for communities, researchers, journalists, and legal professionals. Our reports combine programmatic data retrieval from official open data portals with AI-assisted narrative analysis.
Questions about this report's data or methodology: data@injuria.ai
ThatCarHitMe.com · An Injuria.ai Company
ThatCarHitMe.com
An Injuria.ai Company
Crash Data Intelligence
Data: Ohio Crash Data (ODOT TIMS) · Csv
Period: 2021-01-01 – 2021-12-31
Generated: July 6, 2026 · All rights reserved