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Road collisions in Vale of Glamorgan
Police recorded 480 road collisions involving injury in Vale of Glamorgan between 2021 and 2025, about 96 a year. 11 of them were fatal, and an estimated 109 involved serious injury once DfT's severity adjustment is applied. These are reported injury collisions only: damage-only incidents and unreported injuries are not included.
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When collisions happen
The busiest hour was 5pm to 6pm, and 28% of collisions happened between 3pm and 7pm (lower than the 32% across Great Britain). Friday had the most collisions, and 25% happened at weekends.
Trend over time
Reported collisions went from 88 in 2021 to 102 in 2025, a rise of 16%. Counts are affected by traffic levels, population and changes in how police record injuries, so Vale of Glamorgan should not be ranked against other areas on these numbers alone.
Who is affected
Across Vale of Glamorgan, 668 people were injured or killed in these collisions. Pedestrians were 12% of casualties (14% across Great Britain), pedal cyclists 7% (12%) and motorcyclists 12% (12%). Car and taxi occupants made up 61%. No pedestrians were killed in the period.
Children aged 0 to 15 were 9% of casualties, close to the 9% national share. People aged 16 to 25 were 24% (21% nationally), and people over 65 were 14% (10% nationally).
| Road user | Casualties | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Pedestrians | 80 | 12.0% | 14.5% |
| Pedal cyclists | 47 | 7.0% | 11.9% |
| Motorcyclists | 82 | 12.3% | 12.4% |
| Car and taxi occupants | 407 | 60.9% | 54.4% |
| Bus and minibus occupants | 17 | 2.5% | 1.8% |
| Van and goods vehicle occupants | 24 | 3.6% | 3.5% |
| Other road users | 11 | 1.6% | 1.6% |
Casualties by age
| Age | Casualties | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| 0 to 5 | 13 | 2.0% | 1.6% |
| 6 to 10 | 16 | 2.4% | 2.6% |
| 11 to 15 | 33 | 5.0% | 4.8% |
| 16 to 20 | 92 | 13.9% | 10.6% |
| 21 to 25 | 66 | 9.9% | 11.0% |
| 26 to 35 | 99 | 14.9% | 20.8% |
| 36 to 45 | 94 | 14.2% | 15.8% |
| 46 to 55 | 86 | 13.0% | 12.8% |
| 56 to 65 | 74 | 11.1% | 10.1% |
| 66 to 75 | 50 | 7.5% | 5.3% |
| Over 75 | 41 | 6.2% | 4.5% |
Vehicles involved
16.0% of collisions involved a pedestrian casualty (17.7% nationally), 9.8% a cyclist (15.0%) and 16.3% a motorcyclist (15.3%). 3.3% involved a goods vehicle (3.9% nationally) and 25.8% involved a driver aged 17 to 24 (21.1%). 5 collisions involved an e-scooter.
| Vehicle | Vehicles | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Cars and taxis | 628 | 73.9% | 69.7% |
| Vans (up to 3.5 tonnes) | 54 | 6.4% | 6.4% |
| Heavy goods vehicles | 17 | 2.0% | 2.3% |
| Motorcycles | 83 | 9.8% | 9.3% |
| Pedal cycles | 48 | 5.6% | 8.7% |
| Buses and minibuses | 8 | 0.9% | 1.8% |
| Other vehicles | 12 | 1.4% | 1.8% |
Collision hotspots in Vale of Glamorgan
These are the 100 metre squares with the most reported collisions in 2021 to 2025. Location is the average position of the collisions in each square, so treat it as approximate.
| # | Where | Junction type | Collisions | Fatal | Map |
|---|---|---|---|---|---|
| 1 | Port Road West (B4266) | Not at a junction | 5 | 0 | View on map |
| 2 | Cardiff Road (A4055) | T or staggered junction | 4 | 0 | View on map |
| 3 | Barry Road (A4055) | T or staggered junction | 4 | 0 | View on map |
| 4 | A48 | T or staggered junction | 4 | 0 | View on map |
| 5 | Gladstone Road (A4055) | Not at a junction | 4 | 0 | View on map |
Roads and streets with the most collisions
Each collision is matched to the nearest named road. Long roads and busy town centres collect the most, so this list shows where collisions are recorded, not which streets are riskiest.
| Road or street | Collisions | Fatal | Serious (est.) |
|---|---|---|---|
| Cardiff Road | 29 | 1 | 8 |
| Port Road | 18 | 1 | 6 |
| Barry Road | 14 | 0 | 3 |
| Ffordd y Mileniwm | 13 | 0 | 2 |
| Port Road West | 12 | 0 | 2 |
| Gladstone Road | 12 | 0 | 3 |
| Broad Street | 9 | 0 | 1 |
| Porthkerry Road | 8 | 0 | 2 |
| Leckwith Road | 7 | 0 | 2 |
| Penarth Road | 7 | 0 | 1 |
| Barry Docks Link Road | 6 | 0 | 0 |
| Lavernock Road | 6 | 0 | 3 |
| Court Road | 6 | 0 | 0 |
| Llantwit Major Road | 5 | 0 | 1 |
| Pen-y-Turnpike Road | 5 | 0 | 2 |
Numbered roads with the most collisions
60% of collisions happened on roads with a 30 mph limit or lower (69% nationally), and 17% on roads with a 60 or 70 mph limit (18% nationally). 47% were at or within 20 metres of a junction or roundabout, lower than the national 54%.
| Road | Collisions | Fatal | Serious (est.) |
|---|---|---|---|
| A4055 | 59 | 1 | 13 |
| A48 | 40 | 4 | 11 |
| B4267 | 27 | 0 | 7 |
| A4050 | 26 | 1 | 8 |
| B4265 | 17 | 2 | 5 |
| A4226 | 17 | 1 | 4 |
| M4 | 14 | 0 | 2 |
| A4160 | 13 | 0 | 4 |
| A4231 | 9 | 0 | 1 |
| B4294 | 8 | 0 | 1 |
| B4270 | 7 | 1 | 2 |
| B4266 | 7 | 0 | 2 |
| B4524 | 6 | 0 | 1 |
| A4222 | 6 | 0 | 3 |
| A4119 | 6 | 0 | 1 |
Only numbered roads are listed here. Named streets are in the table above.
Conditions
28% of collisions in Vale of Glamorgan happened in darkness, close to the 28% across Great Britain. 53% happened on roads classed as urban, lower than the national 67%.
Type of road
| Type of road | Collisions | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Motorway | 14 | 2.9% | 3.0% |
| A(M) road | 0 | 0.0% | 0.2% |
| A road | 181 | 37.9% | 44.0% |
| B road | 77 | 16.1% | 12.5% |
| C road | 2 | 0.4% | 4.4% |
| Unclassified road | 204 | 42.7% | 35.9% |
Speed limit
| Speed limit | Collisions | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| 20 mph | 95 | 19.8% | 17.1% |
| 30 mph | 193 | 40.2% | 52.0% |
| 40 mph | 77 | 16.0% | 8.7% |
| 50 mph | 35 | 7.3% | 4.4% |
| 60 mph | 62 | 12.9% | 12.2% |
| 70 mph | 18 | 3.8% | 5.5% |
Junctions
| Junctions | Collisions | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Not at a junction | 253 | 52.7% | 45.9% |
| T or staggered junction | 137 | 28.5% | 28.5% |
| Crossroads | 41 | 8.5% | 9.5% |
| Junction with more than four arms | 1 | 0.2% | 1.6% |
| Private drive or entrance | 7 | 1.5% | 2.2% |
| Other junction | 17 | 3.5% | 6.1% |
| Roundabout | 24 | 5.0% | 6.2% |
Light conditions
| Light conditions | Collisions | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Daylight | 344 | 71.7% | 71.7% |
| Darkness, street lights lit | 91 | 19.0% | 20.6% |
| Darkness, street lights unlit | 6 | 1.3% | 0.7% |
| Darkness, no street lighting | 33 | 6.9% | 5.3% |
| Darkness, lighting unknown | 6 | 1.3% | 1.7% |
Urban or rural
| Urban or rural | Collisions | Share in Vale of Glamorgan | Share across GB |
|---|---|---|---|
| Urban | 254 | 53.0% | 67.2% |
| Rural | 225 | 47.0% | 32.8% |
About these figures
Only collisions involving injury that were reported to the police are counted. The figures are not adjusted for traffic volume or population, so they should not be used to rank areas against each other. Serious and slight splits use the Department for Transport's severity adjustment. Full explanation.