Yearly Traffic Safety Analysis

329 CRASHES IN
SOUTHBOROUGH, MA
2022

All metrics benchmarked against2021

In 2022, Southborough recorded 329 total traffic crashes, a 1.5% increase from the 324 crashes reported in 2021. While the overall crash volume remained relatively stable, the number of hit-and-run incidents doubled from 6 in the prior year to 12. There were no traffic fatalities reported in either period.

329

1.5%was 324

Total Crash Events

0

Persons Killed

106

9.3%was 97

Persons Injured

12

100.0%was 6

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

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Overall, traffic collisions in Southborough saw a slight increase year-over-year, rising by 1.5% from 324 crashes in 2021 to 329 in 2022. The number of people injured in these incidents also increased by 9.3%, from 97 to 106. There were no fatalities reported in either period.

12

Hit-and-Run Crashes — 2022

100.0% vs prior (6)

The number of hit-and-run crashes doubled, increasing from 6 incidents in 2021 to 12 in 2022. This represents a 100% increase in the count of such events. Consequently, the hit-and-run rate, which is the percentage of total crashes that were hit-and-runs, rose from 1.9% in 2021 to 3.6% in 2022.

Vulnerable Road User Casualties

0

Cyclists Killed

Prior: 00.0%

0

Motorists Killed

Prior: 00.0%

1

Cyclists Injured

Prior: 10.0%

105

Motorists Injured

Prior: 9312.9%

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · 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 year-over-year, with Friday being the most frequent day for collisions in both 2022 (66 crashes) and 2021 (58 crashes). Similarly, the 5 p.m. hour was the peak time for incidents in both periods, with a notable increase in crashes during this hour from 29 in 2021 to 38 in 2022.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Crash date field aggregated by weekday

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

There were no fatal crashes recorded in either 2022 or 2021. The composition of injury-related crashes shifted, with the count of serious injury crashes decreasing from 8 to 5 year-over-year. In contrast, crashes resulting in minor injuries increased from 42 in 2021 to 55 in 2022, causing their share of all crashes to grow from 13.0% to 16.7%.

Outcome by Severity (Crash Events)

Serious Injury5serious injury crashes1.5%
-37.5%prior 8
Minor Injury55minor injury crashes16.7%
31.0%prior 42
Possible Injury13possible injury crashes4%
-35.0%prior 20
No Injury252no injury crashes76.6%
-0.8%prior 254

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · KABCO injury classification scale

Severity Distribution (Crash Events)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Most severe injury per crash record

Top Contributing Factors

Inattention remained a leading contributing factor in both periods, with its count holding steady at 66 crashes in 2022 compared to 62 in 2021. Notably, the count of crashes attributed to 'Followed too closely' decreased by 28.6%, from 42 incidents in 2021 to 30 in 2022. Conversely, the count of crashes where 'No improper driving' was cited increased by 50.7%, from 75 to 113.

Officer-Reported Primary Contributing Cause

No improper driving113 (34.3%)50.7%prior 75
Inattention66 (20.1%)6.5%prior 62
Followed too closely30 (9.1%)-28.6%prior 42
Operating vehicle in erratic, reckless, careless, negligent or aggressive manner17 (5.2%)30.8%prior 13
Failure to keep in proper lane or running off road15 (4.6%)-6.3%prior 16
Driving too fast for conditions14 (4.3%)-12.5%prior 16
Failed to yield right of way8 (2.4%)-63.6%prior 22
Disregarded traffic signs, signals, road markings5 (1.5%)-16.7%prior 6
Distracted5 (1.5%)-58.3%prior 12
Glare4 (1.2%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Officer-reported primary contributory cause per crash

Road & Environmental Conditions

In both 2022 and 2021, the majority of crashes occurred in clear weather during daylight hours on dry roads. The proportion of crashes on dry surfaces decreased from 81.2% in 2021 to 74.8% in 2022. Correspondingly, crashes on wet roads increased from 42 to 50, and incidents on roads with snow, ice, or slush increased from a combined 18 in 2021 to 31 in 2022.

Weather

Clear229 (69.8%)
-0.4%prior 230
Cloudy37 (11.3%)
-5.1%prior 39
Rain22 (6.7%)
0.0%prior 22
Snow10 (3.0%)
-23.1%prior 13
Cloudy/Rain9 (2.7%)
80.0%prior 5
Sleet, hail (freezing rain or drizzle)8 (2.4%)
Snow/Cloudy4 (1.2%)
Snow/Blowing sand, snow3 (0.9%)
Rain/Cloudy1 (0.3%)
Cloudy/Snow1 (0.3%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Weather condition at time of crash

Lighting

Daylight223 (67.8%)
-1.3%prior 226
Dark - lighted roadway66 (20.1%)
34.7%prior 49
Dark - roadway not lighted24 (7.3%)
-17.2%prior 29
Dusk9 (2.7%)
-10.0%prior 10
Dawn6 (1.8%)
-14.3%prior 7
Dark - unknown roadway lighting1 (0.3%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Lighting condition field

Road Surface

Dry246 (74.8%)
-6.5%prior 263
Wet50 (15.2%)
19.0%prior 42
Snow17 (5.2%)
0.0%prior 17
Ice11 (3.3%)
Slush3 (0.9%)
Water (standing, moving)1 (0.3%)
Sand, mud, dirt, oil, gravel1 (0.3%)

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Road surface condition field

Vehicles & Demographics

The makes of vehicles involved in crashes remained consistent, with Toyota, Honda, and Ford being the top three most common in both 2022 and 2021. An analysis of persons involved shows a shift in age demographics; while the number of people in the 26-34 and 35-44 age groups decreased, the count of persons aged 21-25 involved in crashes increased from 105 in 2021 to 115 in 2022.

Top Vehicle Makes (586 vehicles)

1
TOYOTA95 (16.2%)
-2.1%prior 97
2
HONDA80 (13.7%)
-2.4%prior 82
3
FORD63 (10.8%)
16.7%prior 54
4
NISSAN32 (5.5%)
-23.8%prior 42
5
CHEVROLET31 (5.3%)
-35.4%prior 48
6
HYUNDAI29 (4.9%)
16.0%prior 25
7
SUBARU28 (4.8%)
-20.0%prior 35
8
JEEP24 (4.1%)
71.4%prior 14
9
BMW18 (3.1%)
5.9%prior 17
10
KIA15 (2.6%)
25.0%prior 12

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Vehicle unit records

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

Sex Distribution (666 persons with recorded sex)

Male385 (57.8%)
-5.4%prior 407
Female281 (42.2%)
-15.6%prior 333

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · Person-level records linked to crash events

Speed Limit Zones

Crashes in the 50 mph speed zone were most frequent in both years, with 110 incidents in 2022 and 115 in 2021. There was a notable increase in crashes occurring in 40 mph zones, which rose from 29 to 42 incidents year-over-year. Similarly, crashes in 65 mph zones increased from 66 to 75. No fatal crashes were recorded in any speed zone for either period.

Source: Massachusetts Crash Data (MassDOT CDV) · Arcgis_yearly Open Data · 2022-01-01 to 2022-12-31 · 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: 2022-01-01 through 2022-12-31
  • Report generated: June 21, 2026

Data Coverage

  • Reporting period: 2022-01-01 through 2022-12-31 (365 days)
  • Geographic scope: SOUTHBOROUGH, MA
  • Total crash records analyzed: 329
  • Total persons involved: 694
  • Total vehicles involved: 586

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). "SOUTHBOROUGH, MA Crash Intelligence Report: 2022." Published June 21, 2026. Reporting period: 2022-01-01 to 2022-12-31. Data source: Massachusetts Crash Data (MassDOT CDV), Arcgis_yearly Open Data. Available at: https://thatcarhitme.com/crash-data/massachusetts/southborough/2022-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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Southborough, MA Crash Report — 2022 | ThatCarHitMe.com