Monthly Traffic Safety Analysis

48 CRASHES IN
WESTON, MA
AUGUST 2025

All metrics benchmarked againstAugust 2024

Total crashes in Weston for August decreased by 27.3% year-over-year, from 66 crashes in August 2024 to 48 crashes in August 2025. This significant reduction in overall incidents is the most notable shift, despite a slight increase in total injuries.

48

▼ -27.3%was 66

Total Crash Events

0

Persons Killed

20

▲ 5.3%was 19

Persons Injured

5

▲ 66.7%was 3

Hit-and-Run Crashes

Note: "Persons Killed" (0) counts individual fatalities across all crash events. "Fatal" in the severity table below (0) counts crash events where at least one fatality occurred. A single crash can result in multiple fatalities. 1 crash with unreported severity is not shown in the severity breakdown.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

The overall trend indicates a decrease in crash incidents in Weston, with total crashes falling from 66 in August 2024 to 48 in August 2025. This represents a 27.3% reduction year-over-year.

5

Hit-and-Run Crashes — August 2025

▲ 66.7% vs prior (3)

Hit-and-run crashes increased from 3 incidents in August 2024 to 5 incidents in August 2025. Consequently, the hit-and-run rate rose from 4.5% of total crashes to 10.4% year-over-year.

Vulnerable Road User Casualties

0

Motorists Killed

Prior: 0→0.0%

20

Motorists Injured

Prior: 19↑5.3%

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Mode classified from person records (driver/passenger → motorist; pedestrian; bicyclist → cyclist; in-line skater / unspecified → other)

When Crashes Happen

The peak day for crashes remained Friday in both periods, though the count decreased from 16 in August 2024 to 13 in August 2025. The peak hour shifted from 2 PM with 10 crashes in August 2024 to 1 PM with 6 crashes in August 2025.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Crash date field aggregated by weekday

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

Fatalities remained at 0 in both August 2024 and August 2025. Total injuries slightly increased from 19 to 20 year-over-year, with serious injuries remaining constant at 1 in both periods. The proportion of crashes resulting in no injury decreased from 80.3% in August 2024 to 72.9% in August 2025.

Outcome by Severity (Crash Events)

Serious Injury1serious injury crashes2.1%
→0.0%prior 1
Minor Injury11minor injury crashes22.9%
↑37.5%prior 8
No Injury35no injury crashes72.9%
↓-34.0%prior 53

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · KABCO injury classification scale

Severity Distribution (Crash Events)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Most severe injury per crash record

Top Contributing Factors

The count of 'Followed too closely' as a contributing factor decreased from 22 crashes in August 2024 to 9 crashes in August 2025. Crashes attributed to 'Driving too fast for conditions' also saw a significant reduction, from 13 to 1. Conversely, 'Inattention' increased from 5 crashes to 10 crashes, and 'Failure to keep in proper lane or running off road' rose from 2 crashes to 8 crashes.

Officer-Reported Primary Contributing Cause

Inattention10 (20.8%)↑100.0%prior 5
Followed too closely9 (18.8%)↓-59.1%prior 22
Failure to keep in proper lane or running off road8 (16.7%)
Failed to yield right of way4 (8.3%)↓-20.0%prior 5
No improper driving3 (6.3%)↓-62.5%prior 8
Distracted2 (4.2%)
Swerving or avoiding due to wind, slippery surface, vehicle, object, vulnerable user in roadway2 (4.2%)
Fatigued/asleep1 (2.1%)
Operating vehicle in erratic, reckless, careless, negligent or aggressive manner1 (2.1%)
Driving too fast for conditions1 (2.1%)↓-92.3%prior 13

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Officer-reported primary contributory cause per crash

Road & Environmental Conditions

Crashes occurring in 'Clear' weather conditions (including Clear/Clear, Clear/Cloudy) decreased from 44 in August 2024 to 40 in August 2025. Crashes on 'Wet' road surfaces saw a substantial decrease, falling from 18 in August 2024 to 3 in August 2025. Crashes during 'Daylight' conditions also decreased, from 56 to 40.

Weather

Clear19 (39.6%)
↓-53.7%prior 41
Clear/Clear18 (37.5%)
Cloudy/Cloudy3 (6.3%)
Clear/Cloudy3 (6.3%)
Cloudy2 (4.2%)
↓-66.7%prior 6
Rain/Rain2 (4.2%)
Rain1 (2.1%)
↓-92.3%prior 13

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Weather condition at time of crash

Lighting

Daylight40 (83.3%)
↓-28.6%prior 56
Dark - lighted roadway4 (8.3%)
Dusk2 (4.2%)
Dark - roadway not lighted1 (2.1%)
Dawn1 (2.1%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Lighting condition field

Road Surface

Dry45 (93.8%)
↓-6.3%prior 48
Wet3 (6.3%)
↓-83.3%prior 18

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Road surface condition field

Vehicles & Demographics

The total number of vehicles involved in crashes decreased from 126 in August 2024 to 97 in August 2025. While TOYOTA remained the top vehicle make, its involvement decreased from 22 to 18. HONDA's involvement increased from 10 to 13, while FORD's decreased from 15 to 8.

Top Vehicle Makes (97 vehicles)

1
TOYOTA18 (18.6%)
↓-18.2%prior 22
2
HONDA13 (13.4%)
↑30.0%prior 10
3
FORD8 (8.2%)
↓-46.7%prior 15
4
NISSAN5 (5.2%)
5
MERCEDES-BENZ5 (5.2%)
6
BMW5 (5.2%)
↓-28.6%prior 7
7
SUBARU4 (4.1%)
↓-20.0%prior 5
8
HYUNDAI4 (4.1%)
↓-55.6%prior 9
9
AUDI3 (3.1%)
10
LEXUS3 (3.1%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Vehicle unit records

11 persons with unknown or unrecorded age excluded from age chart.

Sex Distribution (101 persons with recorded sex)

Male61 (60.4%)
↓-29.9%prior 87
Female40 (39.6%)
↓-18.4%prior 49

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Person-level records linked to crash events

Speed Limit Zones

Crashes in the 35 mph speed zone saw a notable decrease, falling from 28 in August 2024 to 7 in August 2025. Crashes in the 55 mph zone decreased slightly from 12 to 11, and in the 65 mph zone, they decreased from 11 to 8. No fatal crashes were recorded in any speed zone during either period.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2025-08-01 to 2025-08-31 · Posted speed limit at crash location

Data Sources & Methodology

Primary Data Source

All crash data in this report is sourced from Massachusetts Crash Data (MassDOT CDV), accessed programmatically via the Arcgis_yearly 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_yearly 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: 2025-08-01 through 2025-08-31
  • Report generated: June 21, 2026

Data Coverage

  • Reporting period: 2025-08-01 through 2025-08-31 (31 days)
  • Geographic scope: WESTON, MA
  • Total crash records analyzed: 48
  • Total persons involved: 113
  • Total vehicles involved: 97

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). "WESTON, MA Crash Intelligence Report: August 2025." Published June 21, 2026. Reporting period: 2025-08-01 to 2025-08-31. Data source: Massachusetts Crash Data (MassDOT CDV), Arcgis_yearly Open Data. Available at: https://thatcarhitme.com/crash-data/massachusetts/weston/august-2025-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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Weston, MA Crash Report — August 2025 | ThatCarHitMe.com