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Yearly Traffic Safety Analysis

33,684 CRASHES IN
CONNECTICUT, CT
2016

All metrics benchmarked against2015

In 2016, Fairfield County recorded 33,684 traffic crashes, a 3.7% increase from the 32,469 crashes reported in 2015. While total crashes saw a modest rise, the most significant year-over-year change was a sharp increase in roadway fatalities, which grew from 38 in 2015 to 72 in 2016, an 89.5% increase.

33,684

3.7%was 32,469

Total Crash Events

72

89.5%was 38

Persons Killed

9,860

7.8%was 9,145

Persons Injured

3,474

15.3%was 3,013

Hit-and-Run Crashes

Note: "Persons Killed" (72) counts individual fatalities across all crash events. "Fatal" in the severity table below (67) counts crash events where at least one fatality occurred. A single crash can result in multiple fatalities.

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Overall traffic safety trends in Fairfield County worsened from 2015 to 2016. The total number of crashes rose by 3.7%, from 32,469 to 33,684. This increase was accompanied by a more pronounced rise in negative outcomes, with total injuries increasing by 7.8% and total fatalities increasing by 89.5% year-over-year.

3,474

Hit-and-Run Crashes — 2016

15.3% vs prior (3,013)

Hit-and-run incidents increased in both absolute numbers and as a proportion of total crashes. The count of hit-and-run crashes rose by 15.3% from 3,013 in 2015 to 3,474 in 2016. This pushed the hit-and-run rate up from 9.3% to 10.3% of all crashes, indicating a worsening trend.

Vulnerable Road User Casualties

21

Pedestrians Killed

Prior: 5320.0%

2

Cyclists Killed

Prior: 0%

49

Motorists Killed

Prior: 3348.5%

456

Pedestrians Injured

Prior: 38319.1%

114

Cyclists Injured

Prior: 1130.9%

9,290

Motorists Injured

Prior: 8,6487.4%

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · 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 between 2015 and 2016. Friday continued to be the peak day for crashes, with incidents increasing from 5,415 to 5,800. Similarly, the 5 p.m. hour remained the peak time for collisions, with counts rising from 2,751 in 2015 to 2,889 in 2016, indicating a stable but intensifying pattern of crashes during the weekday evening commute.

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Crash date field aggregated by weekday

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

The severity of crashes increased from 2015 to 2016. The number of fatal crashes rose from 37 to 67, and the fatal crash rate as a percentage of all crashes increased from 0.1% to 0.2%. Crashes resulting in serious injuries also grew proportionally, from 0.9% to 1.2% of all incidents. Consequently, the share of crashes with no reported injuries decreased from 79.4% in 2015 to 78.5% in 2016.

Severity is per crash event (most severe injury). 67 fatal crash events resulted in 72 persons killed.

Outcome by Severity (Crash Events)

Fatal67fatal crashes0.2%
81.1%prior 37
Serious Injury389serious injury crashes1.2%
30.5%prior 298
Minor Injury2,653minor injury crashes7.9%
14.0%prior 2,328
Possible Injury4,130possible injury crashes12.3%
2.7%prior 4,020
No Injury26,445no injury crashes78.5%
2.6%prior 25,786

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · KABCO injury classification scale

Severity Distribution (Crash Events)

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Most severe injury per crash record

Road & Environmental Conditions

The proportion of crashes occurring under different environmental conditions shifted between 2015 and 2016. Crashes during adverse weather, such as rain or snow, decreased as a share of the total, with snow-related incidents falling from 3.9% to 2.2% of all crashes. Correspondingly, collisions on clear days with dry road surfaces made up a larger percentage of the total, increasing from 79.6% to 83.3% of all crashes. Lighting conditions at the time of crashes remained proportionally stable year-over-year.

Weather

Clear28,066 (83.9%)
8.5%prior 25,860
Rain2,687 (8.0%)
-4.8%prior 2,823
Cloudy1,598 (4.8%)
22.1%prior 1,309
Snow747 (2.2%)
-41.1%prior 1,268
Freezing Rain or Freezing Drizzle115 (0.3%)
-61.5%prior 299
Blowing Snow112 (0.3%)
-43.4%prior 198
Fog, Smog, Smoke55 (0.2%)
-73.0%prior 204
Sleet or Hail26 (0.1%)
-36.6%prior 41
Other25 (0.1%)
-64.8%prior 71
Blowing Sand, Soil, Dirt14 (0.0%)
-48.1%prior 27

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Weather condition at time of crash

Lighting

Daylight24,119 (72.4%)
3.1%prior 23,388
Dark-Lighted6,411 (19.2%)
6.2%prior 6,038
Dark-Not Lighted1,906 (5.7%)
-0.9%prior 1,923
Dusk493 (1.5%)
2.7%prior 480
Dawn203 (0.6%)
25.3%prior 162
Dark-Unknown Lighting159 (0.5%)
13.6%prior 140
Other36 (0.1%)
-30.8%prior 52

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Lighting condition field

Road Surface

Dry27,916 (83.4%)
9.8%prior 25,415
Wet4,265 (12.7%)
-5.1%prior 4,493
Snow733 (2.2%)
-40.7%prior 1,236
Ice / Frost330 (1.0%)
-48.8%prior 644
Slush147 (0.4%)
-56.0%prior 334
Mud, Dirt, Gravel25 (0.1%)
-10.7%prior 28
Sand20 (0.1%)
-60.8%prior 51
Other18 (0.1%)
-53.8%prior 39
Standing Water14 (0.0%)
-17.6%prior 17
Oil4 (0.0%)

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Road surface condition field

Vehicles & Demographics

The demographic profile of persons involved in crashes and the most common vehicle makes remained largely consistent year-over-year. The distribution of involved persons across age groups saw minimal changes, with most groups maintaining a similar proportional representation. In terms of vehicles, Ford, Honda, and Toyota continued to be the most frequently involved makes in both 2015 and 2016, with no significant shifts in their rankings.

Top Vehicle Makes (65,204 vehicles)

1
FORD5,862 (9%)
1.1%prior 5,801
2
HOND4,136 (6.3%)
-1.0%prior 4,176
3
HONDA3,652 (5.6%)
9.5%prior 3,336
4
TOYOTA3,410 (5.2%)
21.1%prior 2,815
5
TOYO3,348 (5.1%)
94.7%prior 1,720
6
JEEP2,833 (4.3%)
10.2%prior 2,570
7
NISSAN2,754 (4.2%)
36.3%prior 2,020
8
NISS2,721 (4.2%)
-2.9%prior 2,802
9
CHEV2,391 (3.7%)
-6.5%prior 2,556
10
BMW1,931 (3%)
5.6%prior 1,829

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Vehicle unit records

5,123 persons with unknown or unrecorded age excluded from age chart.

Sex Distribution (78,118 persons with recorded sex)

Male43,399 (55.6%)
6.2%prior 40,850
Female34,719 (44.4%)
6.0%prior 32,744

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · Person-level records linked to crash events

Speed Limit Zones

There was a notable shift in crashes toward lower posted speed limit zones between 2015 and 2016. Crashes in zones of 25 mph or less increased from 9,324 to 12,137. The number of fatal crashes in the 25 mph zone also increased significantly, rising from 6 in 2015 to 22 in 2016. Conversely, collisions in some higher speed zones, such as the 55 mph zone, saw a smaller increase in crash counts from 5,049 to 5,162.

Fatal crashes by zone: 1 mph: 2 of 5,367 (0.037%) · 20 mph: 1 of 178 (0.562%) · 25 mph: 22 of 12,137 (0.181%) · 30 mph: 12 of 2,579 (0.465%) · 35 mph: 5 of 2,380 (0.21%) · 40 mph: 5 of 1,297 (0.386%) · 45 mph: 3 of 418 (0.718%) · 55 mph: 13 of 5,162 (0.252%) · 88 mph: 3 of 2,837 (0.106%) · 99 mph: 1 of 177 (0.565%)

Source: Connecticut Crash Data · Csv Open Data · 2016-01-01 to 2016-12-31 · 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: 2016-01-01 through 2016-12-31
  • Report generated: August 20, 2026

Data Coverage

  • Reporting period: 2016-01-01 through 2016-12-31 (366 days)
  • Geographic scope: connecticut, CT
  • Total crash records analyzed: 33,684
  • Total persons involved: 82,808
  • Total vehicles involved: 65,204

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: 2016." Published August 20, 2026. Reporting period: 2016-01-01 to 2016-12-31. Data source: Connecticut Crash Data, Csv Open Data. Available at: https://thatcarhitme.com/crash-data/connecticut/statewide/2016-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

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