S4 postcode district road traffic accidents
The S4 postcode district recorded 1,530 collisions in the STATS19 data between 1999 and 2024, involving 2,135 casualties. Of these collisions, 5 were fatal and 253 were serious. Recorded collisions in 2024 were unchanged on 2023.
Severity Breakdown
- Fatal
- 5
- Serious
- 253
- Casualties
- 2,135
- Fatal
- 5
- Serious
- 253
- Casualties
- 2,135
Collisions by Year
Areas covering S4
Towns in S4
Roads in S4
Accidents in the S4 postcode district
Road collision statistics for the S4 postcode district
Collisions recorded
1,530
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
2,135
Casualties recorded across every collision in this area.
Fatal collisions
5
Collisions in which at least one person died.
Serious collisions
253
16.9% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the S4 postcode district
Collisions in the S4 postcode district are most frequently recorded on a Friday (17.1% of the total), with 26% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
83.1% of recorded collisions in the S4 postcode district happen on a single carriageway. Around 21.2% were recorded in adverse weather such as rain, snow or fog.
The collisions in the S4 postcode district have produced 2,135 casualties. Pedestrians account for 20% 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 140 collisions, Monday 228 collisions, Tuesday 241 collisions, Wednesday 231 collisions, Thursday 241 collisions, Friday 261 collisions, Saturday 188 collisions.
Light conditions
Light conditions: Daylight 1,132 collisions, Darkness 398 collisions.
Road type
Road type: Single carriageway 1,272 collisions, Dual carriageway 101 collisions, Roundabout 78 collisions, One way street 38 collisions, Other 29 collisions, Unknown 8 collisions, Slip road 4 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 52 collisions, 30 mph 1,396 collisions, 40 mph 82 collisions.
Weather at the time
Weather at the time: Fine no high winds 1,193 collisions, Raining no high winds 235 collisions, Other 35 collisions, Unknown 33 collisions, Fine + high winds 13 collisions.
Who was hurt
Who was hurt: Driver or rider 1,053 casualties, Passenger 655 casualties, Pedestrian 427 casualties.
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Recent Accidents
Showing 20 of 1,530 accidents
Accident 2023141282830
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SeriousAccident 2023141270302
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SeriousAccident 2023141259247
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SlightAccident 2022141256984
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SlightAccident 2022141253887
SeriousAccident 2022141251418
SlightAccident 2022141250907
SeriousAccident 2022141247654
SlightAccident 2022141246005
SeriousAccident 2022141244922
SlightAccident 2022141241291
SeriousAccident 2022141234580
SlightFrequently asked questions about road accidents in the S4 postcode district
How many road accidents have there been in the S4 postcode district?
1,530 collisions have been recorded in the S4 postcode district in the STATS19 road safety data between 1999 and 2024, involving 2,135 casualties.
How many of the collisions in the S4 postcode district were serious or fatal?
5 were fatal and 253 were serious — 16.9% of all recorded collisions in the S4 postcode district resulted in a death or serious injury.
When do most road accidents happen in the S4 postcode district?
Friday is the most common day for collisions in the S4 postcode district, accounting for 17.1% of them, and 26% of all collisions here happen in darkness.
What kind of roads do collisions in the S4 postcode district happen on?
83.1% of collisions in the S4 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the S4 postcode district?
Pedestrians make up 20% of the 2,135 casualties recorded in the S4 postcode district.
Is road safety in the S4 postcode district getting better or worse?
Recorded collisions in the S4 postcode district were broadly unchanged in 2024 compared with 2023.
Where does the road accident data for the S4 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 S4 postcode district cover 1999 to 2024.