SN4 postcode district road traffic accidents
The SN4 postcode district recorded 2,096 collisions in the STATS19 data between 1999 and 2024, involving 3,108 casualties. Of these collisions, 31 were fatal and 312 were serious. Recorded collisions in 2024 were up 43% on 2023.
Severity Breakdown
- Fatal
- 31
- Serious
- 312
- Casualties
- 3,108
- Fatal
- 31
- Serious
- 312
- Casualties
- 3,108
Collisions by Year
Areas covering SN4
Towns in SN4
Roads in SN4
Accidents in the SN4 postcode district
Road collision statistics for the SN4 postcode district
Collisions recorded
2,096
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
3,108
Casualties recorded across every collision in this area.
Fatal collisions
31
Collisions in which at least one person died.
Serious collisions
312
16.4% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the SN4 postcode district
Collisions in the SN4 postcode district are most frequently recorded on a Wednesday (16.4% of the total), with 25% happening in darkness rather than daylight. The most common posted speed limit at the scene is 60 mph.
69.1% of recorded collisions in the SN4 postcode district happen on a single carriageway. Around 19.4% were recorded in adverse weather such as rain, snow or fog.
The collisions in the SN4 postcode district have produced 3,108 casualties. Pedestrians account for 5.3% 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 239 collisions, Monday 297 collisions, Tuesday 334 collisions, Wednesday 343 collisions, Thursday 273 collisions, Friday 335 collisions, Saturday 275 collisions.
Light conditions
Light conditions: Daylight 1,571 collisions, Darkness 525 collisions.
Road type
Road type: Single carriageway 1,448 collisions, Dual carriageway 458 collisions, Roundabout 163 collisions, Slip road 19 collisions, One way street 3 collisions, Unknown 3 collisions, Other 2 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 10 collisions, 30 mph 566 collisions, 40 mph 171 collisions, 50 mph 155 collisions, 60 mph 718 collisions, 70 mph 476 collisions.
Weather at the time
Weather at the time: Fine no high winds 1,666 collisions, Raining no high winds 260 collisions, Raining + high winds 50 collisions, Unknown 39 collisions, Fine + high winds 24 collisions.
Who was hurt
Who was hurt: Driver or rider 2,100 casualties, Passenger 843 casualties, Pedestrian 165 casualties.
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Recent Accidents
Showing 20 of 1,753 accidents
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SlightFrequently asked questions about road accidents in the SN4 postcode district
How many road accidents have there been in the SN4 postcode district?
2,096 collisions have been recorded in the SN4 postcode district in the STATS19 road safety data between 1999 and 2024, involving 3,108 casualties.
How many of the collisions in the SN4 postcode district were serious or fatal?
31 were fatal and 312 were serious — 16.4% of all recorded collisions in the SN4 postcode district resulted in a death or serious injury.
When do most road accidents happen in the SN4 postcode district?
Wednesday is the most common day for collisions in the SN4 postcode district, accounting for 16.4% of them, and 25% of all collisions here happen in darkness.
What kind of roads do collisions in the SN4 postcode district happen on?
69.1% of collisions in the SN4 postcode district are recorded on a single carriageway, most often where the limit is 60 mph.
Are pedestrians often hurt in collisions in the SN4 postcode district?
Pedestrians make up 5.3% of the 3,108 casualties recorded in the SN4 postcode district.
Is road safety in the SN4 postcode district getting better or worse?
Recorded collisions in the SN4 postcode district rose 43% 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 the SN4 postcode district 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 the SN4 postcode district cover 1999 to 2024.