ST4 postcode district road traffic accidents
The ST4 postcode district recorded 4,968 collisions in the STATS19 data between 1999 and 2024, involving 6,623 casualties. Of these collisions, 51 were fatal and 354 were serious. Recorded collisions in 2024 were up 69% on 2023.
Severity Breakdown
- Fatal
- 51
- Serious
- 354
- Casualties
- 6,623
- Fatal
- 51
- Serious
- 354
- Casualties
- 6,623
Collisions by Year
Areas covering ST4
Towns in ST4
Roads in ST4
Accidents in the ST4 postcode district
Road collision statistics for the ST4 postcode district
Collisions recorded
4,968
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
6,623
Casualties recorded across every collision in this area.
Fatal collisions
51
Collisions in which at least one person died.
Serious collisions
354
8.2% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the ST4 postcode district
Collisions in the ST4 postcode district are most frequently recorded on a Friday (17.1% of the total), with 27.7% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
55.1% of recorded collisions in the ST4 postcode district happen on a single carriageway. Around 20.5% were recorded in adverse weather such as rain, snow or fog.
The collisions in the ST4 postcode district have produced 6,621 casualties. Pedestrians account for 11.1% 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 464 collisions, Monday 704 collisions, Tuesday 706 collisions, Wednesday 835 collisions, Thursday 757 collisions, Friday 852 collisions, Saturday 650 collisions.
Light conditions
Light conditions: Daylight 3,593 collisions, Darkness 1,375 collisions.
Road type
Road type: Single carriageway 2,737 collisions, Dual carriageway 1,296 collisions, Roundabout 561 collisions, Slip road 161 collisions, One way street 102 collisions, Other 74 collisions, Unknown 37 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 14 collisions, 30 mph 3,726 collisions, 40 mph 227 collisions, 50 mph 709 collisions, 60 mph 116 collisions, 70 mph 174 collisions.
Weather at the time
Weather at the time: Fine no high winds 3,948 collisions, Raining no high winds 720 collisions, Raining + high winds 68 collisions, Unknown 68 collisions, Other 67 collisions.
Who was hurt
Who was hurt: Driver or rider 4,134 casualties, Passenger 1,755 casualties, Pedestrian 732 casualties.
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Recent Accidents
Showing 20 of 4,968 accidents
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SlightFrequently asked questions about road accidents in the ST4 postcode district
How many road accidents have there been in the ST4 postcode district?
4,968 collisions have been recorded in the ST4 postcode district in the STATS19 road safety data between 1999 and 2024, involving 6,623 casualties.
How many of the collisions in the ST4 postcode district were serious or fatal?
51 were fatal and 354 were serious — 8.2% of all recorded collisions in the ST4 postcode district resulted in a death or serious injury.
When do most road accidents happen in the ST4 postcode district?
Friday is the most common day for collisions in the ST4 postcode district, accounting for 17.1% of them, and 27.7% of all collisions here happen in darkness.
What kind of roads do collisions in the ST4 postcode district happen on?
55.1% of collisions in the ST4 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the ST4 postcode district?
Pedestrians make up 11.1% of the 6,621 casualties recorded in the ST4 postcode district.
Is road safety in the ST4 postcode district getting better or worse?
Recorded collisions in the ST4 postcode district rose 69% 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 ST4 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 ST4 postcode district cover 1999 to 2024.