Yearly Traffic Safety Analysis

166 CRASHES IN
MIDDLETON, MA
2024

All metrics benchmarked against2023

In Middleton, total traffic crashes decreased by 11.2% from 187 in 2023 to 166 in 2024. This overall reduction was accompanied by a significant drop in crash severity. Most notably, there were no traffic fatalities in 2024, compared to two in the prior year, and total injuries fell by 35.1% from 57 to 37.

166

-11.2%was 187

Total Crash Events

0

-100.0%was 2

Persons Killed

37

-35.1%was 57

Persons Injured

3

-25.0%was 4

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. 3 crashes with unreported severity are not shown in the severity breakdown.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Crash data for Middleton shows a downward trend year-over-year. Total collisions declined from 187 to 166, representing an 11.2% decrease. This positive trend was more pronounced for personal injuries, which fell from 57 to 37, a 35.1% reduction compared to the previous year.

3

Hit-and-Run Crashes — 2024

-25.0% vs prior (4)

Hit-and-run incidents showed a slight downward trend. The total count of hit-and-run crashes decreased from four in 2023 to three in 2024. The hit-and-run rate, calculated as a percentage of total crashes, also declined modestly from 2.1% to 1.8% year-over-year.

Vulnerable Road User Casualties

0

Cyclists Killed

Prior: 00.0%

0

Motorists Killed

Prior: 2-100.0%

1

Cyclists Injured

Prior: 0%

36

Motorists Injured

Prior: 57-36.8%

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Mode classified from person records (driver/passenger → motorist; pedestrian; bicyclist → cyclist; in-line skater / unspecified → other)

When Crashes Happen

The temporal patterns of crashes showed some shifts between the two periods. The peak day for crashes moved from Wednesday (35 crashes) in 2023 to Thursday (32 crashes) in 2024. While the 3:00 PM hour remained a high-frequency time, its crash count dropped from 26 to 16; concurrently, a new peak emerged at noon in 2024, which recorded 16 crashes.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Crash date field aggregated by weekday

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

Crash severity significantly decreased in 2024 compared to 2023. Fatal crashes were eliminated, dropping from two incidents to zero. The number of crashes resulting in possible injuries was more than halved, falling from 15 to 7. Consequently, the proportion of crashes with no reported injuries increased from 75.4% in 2023 to 79.5% in 2024.

Outcome by Severity (Crash Events)

Serious Injury2serious injury crashes1.2%
-33.3%prior 3
Minor Injury22minor injury crashes13.3%
-4.3%prior 23
Possible Injury7possible injury crashes4.2%
-53.3%prior 15
No Injury132no injury crashes79.5%
-6.4%prior 141

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · KABCO injury classification scale

Severity Distribution (Crash Events)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Most severe injury per crash record

Top Contributing Factors

While "No improper driving" remained the most cited factor in both years, its count fell from 75 to 53. The most significant change was the rise of "Inattention" as a contributing factor, with its count increasing by 57% from 21 crashes in 2023 to 33 in 2024. As a result, the share of crashes attributed to inattention nearly doubled, rising from 11.2% to 19.9% of all incidents.

Officer-Reported Primary Contributing Cause

No improper driving53 (31.9%)-29.3%prior 75
Inattention33 (19.9%)57.1%prior 21
Failed to yield right of way14 (8.4%)0.0%prior 14
Followed too closely7 (4.2%)0.0%prior 7
Distracted6 (3.6%)
Failure to keep in proper lane or running off road6 (3.6%)
Other improper action4 (2.4%)-60.0%prior 10
Fatigued/asleep3 (1.8%)
Operating vehicle in erratic, reckless, careless, negligent or aggressive manner3 (1.8%)
Swerving or avoiding due to wind, slippery surface, vehicle, object, vulnerable user in roadway3 (1.8%)-40.0%prior 5

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Officer-reported primary contributory cause per crash

Road & Environmental Conditions

The environmental conditions under which crashes occurred were largely consistent year-over-year. In both 2023 and 2024, approximately 77% of crashes happened during daylight hours and about 69% occurred in clear weather. There was a minor decrease in the proportion of crashes on wet road surfaces, which accounted for 18.2% of incidents in 2023 and 14.5% in 2024.

Weather

Clear114 (69.1%)
-11.6%prior 129
Cloudy16 (9.7%)
14.3%prior 14
Rain9 (5.5%)
0.0%prior 9
Clear/Cloudy8 (4.8%)
60.0%prior 5
Cloudy/Rain5 (3.0%)
-28.6%prior 7
Rain/Cloudy5 (3.0%)
-37.5%prior 8
Snow3 (1.8%)
-50.0%prior 6
Snow/Rain2 (1.2%)
Cloudy/Clear1 (0.6%)
Sleet, hail (freezing rain or drizzle)/Snow1 (0.6%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Weather condition at time of crash

Lighting

Daylight127 (76.5%)
-12.4%prior 145
Dark - lighted roadway33 (19.9%)
6.5%prior 31
Dark - roadway not lighted3 (1.8%)
-50.0%prior 6
Dawn2 (1.2%)
Dusk1 (0.6%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Lighting condition field

Road Surface

Dry134 (81.2%)
-6.9%prior 144
Wet24 (14.5%)
-29.4%prior 34
Snow3 (1.8%)
-40.0%prior 5
Slush2 (1.2%)
Sand, mud, dirt, oil, gravel1 (0.6%)
Ice1 (0.6%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Road surface condition field

Vehicles & Demographics

The top three vehicle makes involved in crashes remained Ford, Honda, and Toyota, though their order shifted, with Toyota (52 vehicles) surpassing Honda (45 vehicles) for the top spot in 2024. A notable change occurred in the age distribution of persons involved in crashes; the 16-20 age group saw its involvement decrease from 61 individuals in 2023 to 43 in 2024. Meanwhile, involvement for the 26-34 and 55-64 age groups increased.

Top Vehicle Makes (310 vehicles)

1
TOYOTA52 (16.8%)
6.1%prior 49
2
HONDA45 (14.5%)
-16.7%prior 54
3
FORD30 (9.7%)
-26.8%prior 41
4
CHEVROLET24 (7.7%)
-11.1%prior 27
5
NISSAN14 (4.5%)
-30.0%prior 20
6
JEEP14 (4.5%)
-22.2%prior 18
7
SUBARU12 (3.9%)
-7.7%prior 13
8
MERCEDES-BENZ11 (3.5%)
-8.3%prior 12
9
VOLKSWAGEN11 (3.5%)
37.5%prior 8
10
HYUNDAI10 (3.2%)
25.0%prior 8

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Vehicle unit records

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

Sex Distribution (363 persons with recorded sex)

Male205 (56.5%)
-9.3%prior 226
Female158 (43.5%)
-16.4%prior 189

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · Person-level records linked to crash events

Speed Limit Zones

The distribution of crashes across speed zones shifted in 2024. Collisions in 30 mph zones saw a substantial decrease from 43 incidents in 2023 to 23 in 2024. Conversely, crashes in 40 mph zones increased from 50 to 58. Significantly, the two fatal crashes in 2023 occurred in 25 mph and 45 mph zones, while no fatal crashes were recorded in any speed zone in 2024.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2024-01-01 to 2024-12-31 · 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: 2024-01-01 through 2024-12-31
  • Report generated: June 21, 2026

Data Coverage

  • Reporting period: 2024-01-01 through 2024-12-31 (366 days)
  • Geographic scope: MIDDLETON, MA
  • Total crash records analyzed: 166
  • Total persons involved: 372
  • Total vehicles involved: 310

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). "MIDDLETON, MA Crash Intelligence Report: 2024." Published June 21, 2026. Reporting period: 2024-01-01 to 2024-12-31. Data source: Massachusetts Crash Data (MassDOT CDV), Arcgis_yearly Open Data. Available at: https://thatcarhitme.com/crash-data/massachusetts/middleton/2024-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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Middleton, MA Crash Report — 2024 | ThatCarHitMe.com