SL9 postcode district road traffic accidents
The SL9 postcode district recorded 1,617 collisions in the STATS19 data between 1999 and 2024, involving 2,355 casualties. Of these collisions, 40 were fatal and 260 were serious. Recorded collisions in 2024 were up 9% on 2023.
Severity Breakdown
- Fatal
- 40
- Serious
- 260
- Casualties
- 2,355
- Fatal
- 40
- Serious
- 260
- Casualties
- 2,355
Collisions by Year
Areas covering SL9
Towns in SL9
Roads in SL9
Accidents in the SL9 postcode district
Road collision statistics for the SL9 postcode district
Collisions recorded
1,617
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
2,355
Casualties recorded across every collision in this area.
Fatal collisions
40
Collisions in which at least one person died.
Serious collisions
260
18.6% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the SL9 postcode district
Collisions in the SL9 postcode district are most frequently recorded on a Friday (17.4% of the total), with 33.2% happening in darkness rather than daylight. The most common posted speed limit at the scene is 70 mph.
47.9% of recorded collisions in the SL9 postcode district happen on a dual carriageway. Around 19.9% were recorded in adverse weather such as rain, snow or fog.
The collisions in the SL9 postcode district have produced 2,355 casualties. Pedestrians account for 6.7% 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 193 collisions, Monday 232 collisions, Tuesday 216 collisions, Wednesday 231 collisions, Thursday 266 collisions, Friday 282 collisions, Saturday 197 collisions.
Light conditions
Light conditions: Daylight 1,080 collisions, Darkness 537 collisions.
Road type
Road type: Dual carriageway 774 collisions, Single carriageway 722 collisions, Slip road 52 collisions, Roundabout 47 collisions, Other 14 collisions, Unknown 7 collisions, One way street 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 1 collisions, 30 mph 497 collisions, 40 mph 80 collisions, 50 mph 87 collisions, 60 mph 129 collisions, 70 mph 823 collisions.
Weather at the time
Weather at the time: Fine no high winds 1,296 collisions, Raining no high winds 204 collisions, Other 46 collisions, Unknown 19 collisions, Raining + high winds 18 collisions.
Who was hurt
Who was hurt: Driver or rider 1,604 casualties, Passenger 594 casualties, Pedestrian 157 casualties.
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Recent Accidents
Showing 20 of 1,617 accidents
Accident 2022430441042
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SeriousAccident 2022430219124
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SeriousAccident 2022430154716
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SeriousAccident 2022430105852
SlightAccident 2022430171698
SlightFrequently asked questions about road accidents in the SL9 postcode district
How many road accidents have there been in the SL9 postcode district?
1,617 collisions have been recorded in the SL9 postcode district in the STATS19 road safety data between 1999 and 2024, involving 2,355 casualties.
How many of the collisions in the SL9 postcode district were serious or fatal?
40 were fatal and 260 were serious — 18.6% of all recorded collisions in the SL9 postcode district resulted in a death or serious injury.
When do most road accidents happen in the SL9 postcode district?
Friday is the most common day for collisions in the SL9 postcode district, accounting for 17.4% of them, and 33.2% of all collisions here happen in darkness.
What kind of roads do collisions in the SL9 postcode district happen on?
47.9% of collisions in the SL9 postcode district are recorded on a dual carriageway, most often where the limit is 70 mph.
Are pedestrians often hurt in collisions in the SL9 postcode district?
Pedestrians make up 6.7% of the 2,355 casualties recorded in the SL9 postcode district.
Is road safety in the SL9 postcode district getting better or worse?
Recorded collisions in the SL9 postcode district rose 9% 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 SL9 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 SL9 postcode district cover 1999 to 2024.