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Monthly Traffic Safety Analysis

5,222 CRASHES IN
CONNECTICUT, CT
MAY 2020

All metrics benchmarked againstMay 2019

In May 2020, Connecticut recorded 5,222 traffic crashes, a 46.5% decrease from the 9,766 crashes reported in May 2019. Despite this substantial drop in collisions, the number of fatalities remained unchanged at 20 for both periods. The most notable year-over-year shift was the doubling of the fatal crash rate, which increased from 0.2% to 0.4% of all crashes.

5,222

-46.5%was 9,766

Total Crash Events

20

Persons Killed

1,940

-43.0%was 3,401

Persons Injured

852

-21.8%was 1,090

Hit-and-Run Crashes

Note: "Persons Killed" (20) counts individual fatalities across all crash events. "Fatal" in the severity table below (21) counts crash events where at least one fatality occurred. A single crash can result in multiple fatalities.

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Overall traffic safety trends showed a significant year-over-year improvement in the volume of incidents, but not in their severity. Total crashes fell by 4,544 (a 46.5% reduction) and total injuries decreased by 1,461 (a 43.0% reduction). However, the number of traffic fatalities held steady at 20, indicating that the crashes that did occur were more likely to be deadly.

852

Hit-and-Run Crashes — May 2020

-21.8% vs prior (1,090)

While the total number of hit-and-run crashes decreased from 1,090 in May 2019 to 852 in May 2020, the hit-and-run rate trended upward significantly. Hit-and-run incidents accounted for 16.3% of all crashes in May 2020, a notable increase from the 11.2% rate recorded in the same month of the previous year. This indicates that a larger proportion of crashes involved a driver leaving the scene.

Vulnerable Road User Casualties

2

Pedestrians Killed

Prior: 6-66.7%

2

Cyclists Killed

Prior: 1100.0%

16

Motorists Killed

Prior: 1323.1%

0

Other Killed

Prior: 00.0%

59

Pedestrians Injured

Prior: 113-47.8%

35

Cyclists Injured

Prior: 40-12.5%

1,845

Motorists Injured

Prior: 3,248-43.2%

1

Other Injured

Prior: 0%

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Mode classified from person records (driver/passenger → motorist; pedestrian; bicyclist → cyclist; in-line skater / unspecified → other)

When Crashes Happen

The temporal patterns of crashes remained consistent despite a large decrease in overall volume. Friday was the peak day for crashes in both May 2020 (1,022 crashes) and May 2019 (1,814 crashes). Similarly, the 4 p.m. hour was the peak time for collisions in both periods, accounting for 477 crashes in the current period and 884 in the prior year. The timing of when crashes were most frequent did not shift year-over-year.

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Crash date field aggregated by weekday

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

The severity of crashes worsened in May 2020 compared to the previous year. The fatal crash rate doubled from 0.2% to 0.4%, as the number of fatal incidents rose from 20 to 21 despite far fewer total crashes. The proportion of crashes involving serious injuries also increased from 1.3% to 1.7%, and minor injury crashes grew from 9.9% to 12.1% of all incidents. Consequently, the share of non-injury crashes decreased from 74.5% to 73.0%.

Severity is per crash event (most severe injury). 21 fatal crash events resulted in 20 persons killed.

Outcome by Severity (Crash Events)

Fatal21fatal crashes0.4%
5.0%prior 20
Serious Injury91serious injury crashes1.7%
-26.6%prior 124
Minor Injury633minor injury crashes12.1%
-34.5%prior 966
Possible Injury667possible injury crashes12.8%
-51.6%prior 1,379
No Injury3,810no injury crashes73%
-47.6%prior 7,277

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · KABCO injury classification scale

Severity Distribution (Crash Events)

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Most severe injury per crash record

Road & Environmental Conditions

The vast majority of crashes in both periods occurred in clear weather and daylight on dry roads. Year-over-year, there was a slight shift toward a higher proportion of crashes happening in clear weather, which accounted for 85.7% of incidents in May 2020 versus 76.6% in May 2019. Crashes on wet roads became less frequent, making up 11.3% of the total compared to 18.0% in the prior year. The proportion of crashes in daylight conditions saw a small decrease from 80.6% to 77.1%.

Weather

Clear4,475 (86.5%)
-40.2%prior 7,484
Rain417 (8.1%)
-68.9%prior 1,339
Cloudy260 (5.0%)
-69.9%prior 865
Fog, Smog, Smoke17 (0.3%)
21.4%prior 14
Other3 (0.1%)
Snow3 (0.1%)
Severe Crosswinds1 (0.0%)

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Weather condition at time of crash

Lighting

Daylight4,025 (77.9%)
-48.9%prior 7,871
Dark-Lighted752 (14.6%)
-39.8%prior 1,249
Dark-Not Lighted237 (4.6%)
-38.0%prior 382
Dusk71 (1.4%)
-36.6%prior 112
Dark-Unknown Lighting40 (0.8%)
29.0%prior 31
Dawn34 (0.7%)
-32.0%prior 50
Other8 (0.2%)
0.0%prior 8

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Lighting condition field

Road Surface

Dry4,576 (88.3%)
-42.3%prior 7,932
Wet589 (11.4%)
-66.6%prior 1,761
Mud, Dirt, Gravel4 (0.1%)
-60.0%prior 10
Oil3 (0.1%)
Other3 (0.1%)
Standing Water3 (0.1%)
Moving Water2 (0.0%)
Sand1 (0.0%)
Ice / Frost1 (0.0%)

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Road surface condition field

Vehicles & Demographics

The top vehicle makes involved in crashes remained largely the same, with Honda, Ford, and Toyota leading in both periods, although the total number of vehicles involved fell from 18,808 to 9,635. The age distribution of persons involved in crashes also showed little change. The 26-34 age group was the largest cohort in both years, representing a slightly increased share of 18.2% of all individuals in May 2020 compared to 16.8% in May 2019.

Top Vehicle Makes (9,635 vehicles)

1
HONDA991 (10.3%)
-50.6%prior 2,007
2
FORD897 (9.3%)
-46.4%prior 1,675
3
TOYOTA823 (8.5%)
-55.1%prior 1,834
4
NISSAN804 (8.3%)
-48.2%prior 1,551
5
CHEVROLET592 (6.1%)
-44.8%prior 1,073
6
SUBARU360 (3.7%)
-50.8%prior 731
7
HYUNDAI352 (3.7%)
-44.7%prior 637
8
JEEP350 (3.6%)
-52.9%prior 743
9
DODGE238 (2.5%)
-49.6%prior 472
10
KIA188 (2%)
-41.3%prior 320

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Vehicle unit records

1,064 persons with unknown or unrecorded age excluded from age chart.

Sex Distribution (11,225 persons with recorded sex)

Male6,709 (59.8%)
-47.8%prior 12,845
Female4,516 (40.2%)
-57.9%prior 10,731

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Person-level records linked to crash events

Speed Limit Zones

Crashes decreased across all speed zones, with the 25 mph zone remaining the most common location for collisions in both periods (1,836 in May 2020 vs. 3,074 in May 2019). However, the distribution of fatal crashes shifted, with the fatal crash rate increasing in higher speed zones. The fatal crash rate in the 35 mph zone increased from 0.28% to 1.22%, and the rate in the 65 mph zone rose from 0.40% to 1.34% year-over-year.

Fatal crashes by zone: 25 mph: 3 of 1,836 (0.163%) · 30 mph: 3 of 421 (0.713%) · 35 mph: 7 of 572 (1.224%) · 45 mph: 1 of 205 (0.488%) · 55 mph: 2 of 263 (0.76%) · 65 mph: 3 of 224 (1.339%) · 88 mph: 1 of 357 (0.28%)

Source: Connecticut Crash Data · Csv Open Data · 2020-05-01 to 2020-05-31 · Posted speed limit at crash location

Data Sources & Methodology

Primary Data Source

All crash data in this report is sourced from Connecticut Crash Data, 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: 2020-05-01 through 2020-05-31
  • Report generated: August 20, 2026

Data Coverage

  • Reporting period: 2020-05-01 through 2020-05-31 (31 days)
  • Geographic scope: connecticut, CT
  • Total crash records analyzed: 5,222
  • Total persons involved: 12,167
  • Total vehicles involved: 9,635

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). "connecticut, CT Crash Intelligence Report: May 2020." Published August 20, 2026. Reporting period: 2020-05-01 to 2020-05-31. Data source: Connecticut Crash Data, Csv Open Data. Available at: https://thatcarhitme.com/crash-data/connecticut/statewide/may-2020-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

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