Welwyn road traffic accidents
Welwyn recorded 196 collisions in the STATS19 data between 1999 and 2024, involving 264 casualties. Of these collisions, 0 were fatal and 26 were serious. Recorded collisions in 2024 were up 33% on 2023.
Severity Breakdown
- Fatal
- 0
- Serious
- 26
- Casualties
- 264
- Fatal
- 0
- Serious
- 26
- Casualties
- 264
Collisions by Year
Areas covering Welwyn
Roads in Welwyn
Postcode districts in Welwyn
Accidents in Welwyn
Road collision statistics for Welwyn
Collisions recorded
196
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
264
Casualties recorded across every collision in this area.
Fatal collisions
0
Collisions in which at least one person died.
Serious collisions
26
13.3% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Welwyn
Collisions in Welwyn are most frequently recorded on a Wednesday (21.9% of the total), with 25.5% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
63.8% of recorded collisions in Welwyn happen on a single carriageway. Around 16.3% were recorded in adverse weather such as rain, snow or fog.
The collisions in Welwyn have produced 264 casualties. Pedestrians account for 10.6% 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 14 collisions, Monday 18 collisions, Tuesday 37 collisions, Wednesday 43 collisions, Thursday 37 collisions, Friday 28 collisions, Saturday 19 collisions.
Light conditions
Light conditions: Daylight 146 collisions, Darkness 50 collisions.
Road type
Road type: Single carriageway 125 collisions, Roundabout 38 collisions, Dual carriageway 15 collisions, Other 11 collisions, One way street 6 collisions, Unknown 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 1 collisions, 30 mph 78 collisions, 40 mph 35 collisions, 60 mph 71 collisions, 70 mph 11 collisions.
Weather at the time
Weather at the time: Fine no high winds 164 collisions, Raining no high winds 22 collisions, Raining + high winds 4 collisions, Other 3 collisions, Unknown 2 collisions.
Who was hurt
Who was hurt: Driver or rider 187 casualties, Passenger 49 casualties, Pedestrian 28 casualties.
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Recent Accidents
Showing 20 of 170 accidents
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SlightFrequently asked questions about road accidents in Welwyn
How many road accidents have there been in Welwyn?
196 collisions have been recorded in Welwyn in the STATS19 road safety data between 1999 and 2024, involving 264 casualties.
How many of the collisions in Welwyn were serious or fatal?
0 were fatal and 26 were serious — 13.3% of all recorded collisions in Welwyn resulted in a death or serious injury.
When do most road accidents happen in Welwyn?
Wednesday is the most common day for collisions in Welwyn, accounting for 21.9% of them, and 25.5% of all collisions here happen in darkness.
What kind of roads do collisions in Welwyn happen on?
63.8% of collisions in Welwyn are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Welwyn?
Pedestrians make up 10.6% of the 264 casualties recorded in Welwyn.
Is road safety in Welwyn getting better or worse?
Recorded collisions in Welwyn rose 33% in 2024 compared with 2023. Year-on-year figures move with both genuine risk and changes in reporting, so they are best read as a trend rather than a single verdict.
Where does the road accident data for Welwyn 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 Welwyn cover 1999 to 2024.