Harleston road traffic accidents
Harleston recorded 117 collisions in the STATS19 data between 1999 and 2025, involving 135 casualties. Of these collisions, 0 were fatal and 20 were serious. Recorded collisions in 2025 were down 80% on 2024.
Severity Breakdown
- Fatal
- 0
- Serious
- 20
- Casualties
- 135
- Fatal
- 0
- Serious
- 20
- Casualties
- 135
Collisions by Year
Areas covering Harleston
Roads in Harleston
Postcode districts in Harleston
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Harleston
Road collision statistics for Harleston
Collisions recorded
117
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
135
Casualties recorded across every collision in this area.
Fatal collisions
0
Collisions in which at least one person died.
Serious collisions
20
17.1% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Harleston
Collisions in Harleston are most frequently recorded on a Friday (25.6% of the total), with 24.8% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
86.3% of recorded collisions in Harleston happen on a single carriageway. Around 20.5% were recorded in adverse weather such as rain, snow or fog.
The collisions in Harleston have produced 135 casualties. Pedestrians account for 33.3% 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 13 collisions, Monday 11 collisions, Tuesday 14 collisions, Wednesday 17 collisions, Thursday 19 collisions, Friday 30 collisions, Saturday 13 collisions.
Light conditions
Light conditions: Daylight 88 collisions, Darkness 29 collisions.
Road type
Road type: Single carriageway 101 collisions, One way street 7 collisions, One way street/Slip road 5 collisions, Unknown 3 collisions, Dual carriageway 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 21 collisions, 30 mph 90 collisions, 60 mph 6 collisions.
Weather at the time
Weather at the time: Fine no high winds 89 collisions, Raining no high winds 14 collisions, Fine + high winds 4 collisions, Other 4 collisions, Fog or mist 3 collisions.
Who was hurt
Who was hurt: Driver or rider 73 casualties, Passenger 17 casualties, Pedestrian 45 casualties.
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Recent Accidents
Showing 20 of 117 accidents
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SlightFrequently asked questions about road accidents in Harleston
How many road accidents have there been in Harleston?
117 collisions have been recorded in Harleston in the STATS19 road safety data between 1999 and 2025, involving 135 casualties.
How many of the collisions in Harleston were serious or fatal?
0 were fatal and 20 were serious — 17.1% of all recorded collisions in Harleston resulted in a death or serious injury.
When do most road accidents happen in Harleston?
Friday is the most common day for collisions in Harleston, accounting for 25.6% of them, and 24.8% of all collisions here happen in darkness.
What kind of roads do collisions in Harleston happen on?
86.3% of collisions in Harleston are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Harleston?
Pedestrians make up 33.3% of the 135 casualties recorded in Harleston.
Is road safety in Harleston getting better or worse?
Recorded collisions in Harleston fell 80% in 2025 compared with 2024, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for Harleston 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 Harleston cover 1999 to 2025.