Treharris road traffic accidents
Treharris recorded 112 collisions in the STATS19 data between 1999 and 2025, involving 160 casualties. Of these collisions, 1 was fatal and 16 were serious.
Severity Breakdown
- Fatal
- 1
- Serious
- 16
- Casualties
- 160
- Fatal
- 1
- Serious
- 16
- Casualties
- 160
Collisions by Year
Areas covering Treharris
Roads in Treharris
Postcode districts in Treharris
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Treharris
Road collision statistics for Treharris
Collisions recorded
112
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
160
Casualties recorded across every collision in this area.
Fatal collisions
1
Collisions in which at least one person died.
Serious collisions
16
15.2% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Treharris
Collisions in Treharris are most frequently recorded on a Monday (17.9% of the total), with 31.3% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
89.3% of recorded collisions in Treharris happen on a single carriageway. Around 28.6% were recorded in adverse weather such as rain, snow or fog.
The collisions in Treharris have produced 160 casualties. Pedestrians account for 25.6% of those casualties, a marker of the risk to people on foot here.
Collisions by day of the week
Collisions by day of the week: Sunday 10 collisions, Monday 20 collisions, Tuesday 17 collisions, Wednesday 15 collisions, Thursday 17 collisions, Friday 15 collisions, Saturday 18 collisions.
Light conditions
Light conditions: Daylight 77 collisions, Darkness 35 collisions.
Road type
Road type: Single carriageway 100 collisions, One way street 5 collisions, Unknown 3 collisions, Roundabout 2 collisions, Dual carriageway 1 collisions, One way street/Slip road 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 4 collisions, 30 mph 101 collisions, 60 mph 6 collisions, 70 mph 1 collisions.
Weather at the time
Weather at the time: Fine no high winds 80 collisions, Raining no high winds 19 collisions, Unknown 6 collisions, Other 3 collisions, Raining + high winds 2 collisions.
Who was hurt
Who was hurt: Driver or rider 72 casualties, Passenger 47 casualties, Pedestrian 41 casualties.
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Recent Accidents
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SlightFrequently asked questions about road accidents in Treharris
How many road accidents have there been in Treharris?
112 collisions have been recorded in Treharris in the STATS19 road safety data between 1999 and 2025, involving 160 casualties.
How many of the collisions in Treharris were serious or fatal?
1 were fatal and 16 were serious — 15.2% of all recorded collisions in Treharris resulted in a death or serious injury.
When do most road accidents happen in Treharris?
Monday is the most common day for collisions in Treharris, accounting for 17.9% of them, and 31.3% of all collisions here happen in darkness.
What kind of roads do collisions in Treharris happen on?
89.3% of collisions in Treharris are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Treharris?
Pedestrians make up 25.6% of the 160 casualties recorded in Treharris.
Where does the road accident data for Treharris come from?
It comes from STATS19, the official record of personal-injury road collisions reported to the police and published by the Department for Transport. The figures for Treharris cover 1999 to 2025.