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CRASH INTELLIGENCE REPORT · ALLIANCE, 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/alliance/2021-annual-report
Yearly Traffic Safety Analysis
405 CRASHES IN
ALLIANCE, OH
2021
Total crashes in Alliance for 2021 were 405, resulting in 1 fatality and 89 injuries. A significant majority of these crashes, 339 or 83.7%, were classified as "No Injury" incidents. This indicates that most crashes resulted in property damage only.
405
Total Crash Events
1
Persons Killed
89
Persons Injured
13.3%
Hit-and-Run Rate
Note: "Persons Killed" (1) counts individual fatalities across all crash events. "Fatal" in the severity table below (1) 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
54
Hit-and-Run Crashes — 2021
Alliance experienced 54 hit-and-run crashes in 2021, representing 13.3% of all crashes. The classification of a crash as hit-and-run is based on the initial determination by the responding officer.
Vulnerable Road User Casualties
In 2021, 1 motorist was killed and 87 motorists were injured in crashes in Alliance. There were no pedestrian or cyclist fatalities reported. However, 2 pedestrians were injured in crashes.
0
Pedestrians Killed
1
Motorists Killed
2
Pedestrians Injured
87
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
Crashes in Alliance during 2021 peaked on Wednesdays, with 72 incidents recorded. The peak hour for crashes was 3 PM, which saw 40 incidents. A substantial majority of crashes, 298 incidents, occurred during daylight hours, while 92 incidents happened in dark conditions.
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 405 crashes in Alliance during 2021, 339 (83.7%) resulted in no injuries, indicating property damage only. Injury crashes, encompassing serious, minor, and possible injuries, totaled 66 incidents. There was 1 fatal crash recorded, which resulted in 1 fatality.
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 in Alliance occurred under clear weather (251 incidents), dry road surfaces (328 incidents), and daylight conditions (298 incidents). However, 39 crashes occurred during rain or snow, and 74 crashes happened on wet, snowy, icy, or slushy road surfaces. Additionally, 92 crashes took place in dark conditions.
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
The age group 16-20 years was most represented among persons involved in crashes, with 156 individuals. This was followed by the 26-34 age group with 131 individuals and the 65+ age group with 129 individuals. Ford and Chevrolet were the most frequently involved vehicle makes, with 137 and 132 vehicles respectively.
Top Vehicle Makes (782 vehicles)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
47 persons with unknown or unrecorded age excluded from age chart.
Sex Distribution (859 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)
The majority of crashes, 357 incidents, occurred on the roadway in Alliance. A total of 44 crashes occurred off the travel lanes, including 20 on the roadside, 20 on the shoulder, and 4 outside the trafficway. This indicates that approximately 10.9% of crashes involved a run-off-road component.
Crash Location (First Harmful Event)
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Traffic Control Device
The dominant traffic control condition at crash locations was "No Control," accounting for 487 occurrences. Locations with traffic signals were associated with 213 occurrences. Overall, 565 occurrences were at uncontrolled locations (No Control, Stop Sign, Flasher), compared to 213 at signalized locations.
Traffic Control Device
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Driver Contributing Factor
The leading contributing factors identified were "Following too Close / ACDA" with 120 occurrences, and "Failure to Yield" with 85 occurrences. "Other Improper Action" was also a significant factor, contributing to 42 incidents. These top three factors collectively accounted for over 64% of specified contributing factors.
Driver Contributing Factor
Showing top 9 of 17 reported. 8 additional (30 total) not shown: Ran Stop Sign, Unsafe Speed, Improper Passing, Operating Defective Equipment, Not Discernible, Improper Start From a Parked Position, Stopped or Parked Illegally, Swerving to Avoid.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Vulnerable Road Users & Motorcycles
There were 10 vulnerable users involved in crashes, comprising 5 motorcyclists, 3 bicyclists, and 2 pedestrians. Combined, pedestrians and bicyclists accounted for 5 of these vulnerable user involvements.
Impairment (Alcohol / Drugs)
A total of 20 crashes involved impairment, representing 4.9% of all crashes. Of these, 15 incidents involved alcohol, 2 involved drugs, and 3 involved both alcohol and drugs. These figures represent a baseline, as impairment is often under-reported in crash data.
Driver Condition
Abnormal driver conditions were noted in 23 instances. These included 17 drivers reported as "Under the Influence of Medications / Drugs / Alcohol," 3 with "Physical Impairment," 2 with "Illness," and 1 with an "Emotional" condition. These abnormal conditions represent 3.3% of the recorded driver conditions.
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
Specific driver distractions were identified in 39 instances. These included 17 instances of "Other distraction inside the vehicle" and 15 instances of "Other distraction outside the vehicle." Additionally, 4 instances involved manually operating an electronic communication device. These identified distractions collectively represent 5.6% of reported driver conditions.
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
The majority of crashes, 339 incidents, occurred on straight, level roadways. Crashes on grades accounted for 65 incidents (16.1%), with 63 on straight grades and 2 on curved grades. Only 3 crashes (0.7%) occurred on curved sections of the roadway.
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
The most frequent pre-crash action reported was "Straight Ahead," accounting for 383 occurrences. "Slowing or Stopped In Traffic" was the second most common, with 137 occurrences. "Making Left Turn" was also a notable pre-crash action, recorded in 73 instances.
Pre-Crash Driver Action
Showing top 9 of 15 reported. 6 additional (13 total) not shown: Overtaking/Passing, Leaving Traffic Lane, Working, Driverless, Negotiating a Curve, Walking; Running; Jogging; Playing.
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Vehicle unit records
Manner of Collision
The most dominant manner of collision was "Rear-end," accounting for 129 crashes or 31.9% of all incidents. "Angle" collisions were the second most common, with 103 crashes or 25.4%. Additionally, 58 crashes (14.3%) were classified as "Not Collision Between Two Vehicles in Transport."
Manner of Collision
"Other" combines 2 smaller categories (10 records): Other/Unknown (9), Rear-to-rear (1).
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 frequently involved vehicle type, accounting for 484 vehicles. Sport Utility Vehicles (137) and Pick up trucks (84) were also highly represented. Commercial vehicles, including semi-tractors, single unit trucks, cargo vans, and buses, collectively comprised 20 vehicles, representing 2.6% of all vehicles involved.
Vehicle Type
"Other" combines 9 smaller categories (24 records): Motorcycle 2 Wheeled (5), Cargo Van (5), Other Vehicle (4), Bicycle (3), Pedestrian/Skater (2), Heavy Equipment (2), Motorhome (1), Bus (16+ Passengers) (1), Van (9-15 Seats) (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, with 714 individuals. Occupants accounted for 177 individuals, representing nearly 20% of all persons. Pedestrians were involved in 2 incidents.
Person Type
Source: Ohio Crash Data (ODOT TIMS) · Csv Open Data · 2021-01-01 to 2021-12-31 · Crash-level records
Person Injury Severity
Out of 893 persons involved in crashes, 1 person sustained fatal injuries. A total of 89 persons sustained injuries of varying severity (6 serious, 40 minor, 43 possible). This means approximately 10% of persons involved in crashes sustained some form 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 those with known safety equipment status, 33 individuals were reported as using "None Used." This represents 4.85% of persons with known safety equipment use. The majority, 604 individuals, used "Shoulder and Lap Belt Used."
Occupant Safety Equipment
"Other" combines 3 smaller categories (6 records): Lap Belt Only Used (3), Helmet Used (2), Lighting - Pedestrian / Bicycle Only (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
The majority of crashes involved two vehicles, totaling 338 incidents. Single-vehicle crashes accounted for 49 incidents, representing 12.1% of all crashes. There was one crash that involved five vehicles, making it the largest multi-vehicle incident recorded.
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: Alliance, OH
- Total crash records analyzed: 405
- Total persons involved: 893
- Total vehicles involved: 782
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). "Alliance, 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/alliance/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