Yearly Traffic Safety Analysis

234 CRASHES IN
WINOOSKI CITY, VT
2017

All metrics benchmarked against2016

In Winooski City, total crashes decreased by 4.9%, from 246 in 2016 to 234 in 2017. The most significant year-over-year shift was the increase in total fatalities from 0 in 2016 to 1 in 2017. This also led to an increase in fatal crashes from 0 to 1 during the same period.

234

-4.9%was 246

Total Crash Events

1

Fatal Crashes

29

-9.4%was 32

Injury Crashes

1

Fatal Crash Events

Note: "Fatal Crashes" and "Injury Crashes" count crash events — this source publishes crash-level counts only, not individual persons. 14 crashes with unreported severity are not shown in the severity breakdown.

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Overall, Winooski City experienced a slight decrease in total crashes, falling by 4.9% from 246 in 2016 to 234 in 2017. This decline was accompanied by a 9.4% reduction in total injuries, from 32 to 29. However, there was an increase in total fatalities, with 1 fatality recorded in 2017 compared to 0 in 2016.

When Crashes Happen

The temporal patterns of crashes showed some shifts year-over-year. The peak day for crashes moved from Wednesday, with 49 crashes in 2016, to Tuesday, with 47 crashes in 2017. Similarly, the peak hour for crashes shifted from 6p, which saw 30 crashes in 2016, to 5p, which recorded 28 crashes in 2017.

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Crash date field aggregated by weekday

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

The severity distribution of crashes saw a notable change, with fatal crashes increasing from 0 in 2016 to 1 in 2017, raising the fatal crash rate from 0% to 0.4%. Conversely, injury crashes decreased by 9.4%, from 32 crashes in 2016 to 29 crashes in 2017, resulting in a slight reduction in their proportion from 13% to 12.4% of total crashes.

Outcome by Severity (Crash Events)

Fatal1fatal crashes0.4%
Injury29minor injury crashes12.4%
-9.4%prior 32
No Injury190no injury crashes81.2%
-5.0%prior 200

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Severity derived from reported fatal/injury indicators (no KABCO A/B/C codes)

Severity Distribution (Crash Events)

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Most severe injury per crash record

Road & Environmental Conditions

Crashes occurring under adverse weather and road conditions saw notable increases. Crashes during freezing precipitation doubled from 10 in 2016 to 20 in 2017, and crashes during rain increased from 10 to 15. On road surfaces, crashes on snow rose from 8 to 25, and crashes on ice increased from 1 to 4.

Weather

Clear114 (54.0%)
-16.8%prior 137
Cloudy60 (28.4%)
-10.4%prior 67
Freezing Precipitation20 (9.5%)
100.0%prior 10
Rain15 (7.1%)
50.0%prior 10
Wind2 (0.9%)

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Weather condition at time of crash

Lighting

Daylight184 (78.6%)
-3.7%prior 191
Dark50 (21.4%)
-9.1%prior 55

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Lighting condition field

Road Surface

Dry142 (66.7%)
-22.8%prior 184
Wet38 (17.8%)
11.8%prior 34
Snow25 (11.7%)
212.5%prior 8
Ice4 (1.9%)
Slush3 (1.4%)
Other - Explain in Narrative1 (0.5%)

Source: Vermont Crash Data · Arcgis Open Data · 2017-01-01 to 2017-12-31 · Road surface condition field

Data Sources & Methodology

Primary Data Source

All crash data in this report is sourced from Vermont Crash Data, accessed programmatically via the Arcgis 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: Arcgis 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: 2017-01-01 through 2017-12-31
  • Report generated: July 5, 2026

Data Coverage

  • Reporting period: 2017-01-01 through 2017-12-31 (365 days)
  • Geographic scope: Winooski City, VT
  • Total crash records analyzed: 234

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). "Winooski City, VT Crash Intelligence Report: 2017." Published July 5, 2026. Reporting period: 2017-01-01 to 2017-12-31. Data source: Vermont Crash Data, Arcgis Open Data. Available at: https://thatcarhitme.com/crash-data/vermont/winooski-city/2017-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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Winooski City, VT Crash Report — 2017 | ThatCarHitMe.com