Radlett road traffic accidents
Radlett recorded 358 collisions in the STATS19 data between 1999 and 2025, involving 443 casualties. Of these collisions, 2 were fatal and 44 were serious. Recorded collisions in 2025 were down 46% on 2024.
Severity Breakdown
- Fatal
- 2
- Serious
- 44
- Casualties
- 443
- Fatal
- 2
- Serious
- 44
- Casualties
- 443
Collisions by Year
Areas covering Radlett
Roads in Radlett
Postcode districts in Radlett
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Radlett
Road collision statistics for Radlett
Collisions recorded
358
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
443
Casualties recorded across every collision in this area.
Fatal collisions
2
Collisions in which at least one person died.
Serious collisions
44
12.8% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Radlett
Collisions in Radlett are most frequently recorded on a Tuesday (18.7% of the total), with 23.5% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
91.1% of recorded collisions in Radlett happen on a single carriageway. Around 22.3% were recorded in adverse weather such as rain, snow or fog.
The collisions in Radlett have produced 443 casualties. Pedestrians account for 18.5% 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 31 collisions, Monday 51 collisions, Tuesday 67 collisions, Wednesday 47 collisions, Thursday 65 collisions, Friday 53 collisions, Saturday 44 collisions.
Light conditions
Light conditions: Daylight 274 collisions, Darkness 84 collisions.
Road type
Road type: Single carriageway 326 collisions, Roundabout 15 collisions, One way street 11 collisions, Dual carriageway 3 collisions, One way street/Slip road 2 collisions, Unknown 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 5 collisions, 30 mph 320 collisions, 40 mph 13 collisions, 60 mph 20 collisions.
Weather at the time
Weather at the time: Fine no high winds 278 collisions, Raining no high winds 54 collisions, Other 14 collisions, Unknown 5 collisions, Fog or mist 3 collisions.
Who was hurt
Who was hurt: Driver or rider 291 casualties, Passenger 70 casualties, Pedestrian 82 casualties.
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Recent Accidents
Showing 20 of 358 accidents
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SlightFrequently asked questions about road accidents in Radlett
How many road accidents have there been in Radlett?
358 collisions have been recorded in Radlett in the STATS19 road safety data between 1999 and 2025, involving 443 casualties.
How many of the collisions in Radlett were serious or fatal?
2 were fatal and 44 were serious — 12.8% of all recorded collisions in Radlett resulted in a death or serious injury.
When do most road accidents happen in Radlett?
Tuesday is the most common day for collisions in Radlett, accounting for 18.7% of them, and 23.5% of all collisions here happen in darkness.
What kind of roads do collisions in Radlett happen on?
91.1% of collisions in Radlett are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Radlett?
Pedestrians make up 18.5% of the 443 casualties recorded in Radlett.
Is road safety in Radlett getting better or worse?
Recorded collisions in Radlett fell 46% 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 Radlett 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 Radlett cover 1999 to 2025.