Road risk in Vale of Glamorgan
The official road casualty record for Vale of Glamorgan, from DfT STATS19.
Police recorded 102 injury collisions in Vale of Glamorgan in 2025, hurting 146 people, of whom 17 were killed or seriously injured.
Not ranked. Vale of Glamorgan is held out of our national tablebecause it recorded 17 killed or seriously injured, below the 20 needed for the derived percentages to mean anything. Every figure here is the real recorded number. At this size the derived percentages describe chance more than they describe the place, so there is no rank attached to them. How the floors work.
- Collisions
- 102 in 2025
- People hurt
- 146 casualties
- Killed or seriously injured
- 17
- Killed
- 2
- KSI per billion vehicle miles
- 40.5 (median 80.5)
- KSI, three-year average
- 19.7 a year
- Severity-adjusted KSI, 2025
- 25 (recorded: 17)
- Severity-adjusted KSI, three-year average
- 28 a year (recorded: 19.7)
- KSI per 100,000 residents
- 12.6
- Population
- 135,362
Compiled by Stephen Hall, Data lead, Swift Assist. Source: DfT STATS19 and DfT road traffic estimates (2025), OGL v3. Updated 2026-10-08.
Five years of collisions in Vale of Glamorgan
Across 2021–2025, recorded collisions were up 15.9%, with 2022 the worst year of the period at 103 collisions.
Collisions per year in Vale of Glamorgan
2025: 102 (up 13.3% on the year before) · peak 103 in 2022 · +15.9% across the period
Axis clipped to the data range to show year-on-year movement.
Vehicle crime · year ending June 2026
Vehicle crime in Vale of Glamorgan
3.10
offences per 1,000 residents
421
offences recorded, 12 months
172
of 287 areas, worst first
Vale of Glamorgan recorded 3.10 vehicle offences per 1,000 residents, below the England and Wales rate of 5.04.
Rate calculated from 421 offences and a population of 135,700 (ONS mid-2024), both taken from the same ONS release. Contains public sector information licensed under the Open Government Licence v3.0. Source: Office for National Statistics, Crime in England and Wales: Police Force Area data tables, year ending June 2026; police recorded crime collected by the Home Office.
Pedestrians, cyclists and riders in Vale of Glamorgan
These are the road users with the least protection when something goes wrong, and they carry a disproportionate share of the serious injuries. Across 102 collisions in Vale of Glamorgan, the three groups appear 46 times between them — an involvement rate of 45.1%.
| Road user | Collisions | Share of all collisions |
|---|---|---|
| Pedestrians | 16 | 15.7% |
| Cyclists | 14 | 13.7% |
| Motorcyclists | 16 | 15.7% |
A single collision can involve more than one of these groups and is then counted in each row, so the rows do not add up to a share of the total.
When collisions happen in Vale of Glamorgan
DfT records the light level and road surface at every collision, but publishes neither below national level. These are Vale of Glamorgan’s own shares over 287 collisions, with the national figure beside each one for comparison.
| Share of collisions | Vale of Glamorgan | National | How it reads |
|---|---|---|---|
| In darknessAny collision where the officer recorded darkness, lit or unlit. | 29.3% | 28.7% | close to the national figure |
| In darkness, no street lightingThe rural lighting picture rather than the urban speeding one. | 8% | 6.3% | above the national figure |
| On a wet road surfaceWet, damp or standing water at the scene. | 26.5% | 24.5% | close to the national figure |
| On snow or iceRare everywhere, and concentrated in a handful of authorities. | 2.4% | 1.4% | well above the national figure |
The winter effect. Collisions in Vale of Glamorgan run 24.2% lower from November to January than from May to July — against 4.5% lower nationally. That is 69 collisions against 91.
What this does not tell you
- A share is not a rate. A high darkness share means darkness accounts for more of Vale of Glamorgan’s collisions — not that its roads are more dangerous overall. Read it alongside the casualties-per-mile-driven figure above.
- Condition is recorded, not tested. The officer records the surface and light level at the scene. It is an observation, not a measurement, and it is not a finding that the condition caused the collision.
- Exposure is not controlled for. Fewer people travel at 3am than at 3pm, so a collision in darkness is drawn from a smaller pool of journeys. Without hourly traffic counts, these shares describe when collisions happen rather than how risky an hour is.
Every authority compared on the same measures: winter road risk across Britain.
Road risk in Vale of Glamorgan, answered
How dangerous are the roads in Vale of Glamorgan?
In the latest official DfT figures, 102 road collisions in Vale of Glamorgan injured or killed 146 people, 17 of them killed or seriously injured. Vale of Glamorgan is not ranked in our national table because it recorded 17 killed or seriously injured, below the 20 needed for the derived percentages to mean anything.
Are road casualties in Vale of Glamorgan rising or falling?
Across 2021–2025, recorded collisions in Vale of Glamorgan were up 15.9%, with 2022 the worst year of the period at 103 collisions. Year-to-year movement in a single authority is noisy, so the five-year direction carries more than any single year's change.
Who is being hurt on Vale of Glamorgan's roads?
In Vale of Glamorgan there were 16 collisions involving pedestrians, 14 involving cyclists and 16 involving motorcyclists, out of 102 in total. Added together that is an involvement rate of 45.1%, though a collision involving two of those groups is counted in both figures, so it is a comparable index rather than a clean share.
Who is responsible for road safety in Vale of Glamorgan?
Vale of Glamorgan is a welsh principal area, and is the highway authority for its own roads. That means it sets local speed limits, designs junctions and crossings, and decides safety scheme spending. Motorways and most trunk roads are managed separately by National Highways in England, Transport Scotland, or the Welsh Government, so the worst road in an area is often not the council's to change. Enforcement sits with the local police force.
Where does this data come from?
DfT STATS19, the record police complete at the scene of every injury collision, published annually under the Open Government Licence, combined with DfT's own road traffic estimates for the mileage denominator. Collision, casualty and KSI counts on this page are for 2025; only the trend compares 2021–2025. STATS19 counts collisions police attended and recorded, so collisions never reported do not appear, and under-reporting is known to be worst for cyclists and for slight injuries.
What actually changes the odds in Vale of Glamorgan
Data is only useful if it changes what you do. These three are picked from Vale of Glamorgan’s own figures above, each with the number that prompted it. Every guide explains how the thing works before it suggests buying anything, and most cost less than a third of a typical insurance excess.
Alarmed disc lock
£20–£50
Motorcyclists are in 16% of Vale of Glamorgan's collisions, and bikes are also lifted rather than ridden away. An alarmed disc lock covers the theft half for about £30.
How it works →
Dashcam (parking mode)
£50–£150
Collisions in Vale of Glamorgan are up 16% across the period. A dashcam with parking mode is the cheapest way to keep a disputed claim from becoming a 50/50 split.
How it works →
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