SW1Y postcode district road traffic accidents
The SW1Y postcode district recorded 1,839 collisions in the STATS19 data between 1999 and 2025, involving 2,120 casualties. Of these collisions, 8 were fatal and 252 were serious. Recorded collisions in 2025 were up 12% on 2024.
Severity Breakdown
- Fatal
- 8
- Serious
- 252
- Casualties
- 2,120
- Fatal
- 8
- Serious
- 252
- Casualties
- 2,120
Collisions by Year
Areas covering SW1Y
Towns in SW1Y
Roads in SW1Y
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the SW1Y postcode district
Road collision statistics for the SW1Y postcode district
Collisions recorded
1,839
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
2,120
Casualties recorded across every collision in this area.
Fatal collisions
8
Collisions in which at least one person died.
Serious collisions
252
14.1% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the SW1Y postcode district
Collisions in the SW1Y postcode district are most frequently recorded on a Friday (18.4% of the total), with 39.2% 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 SW1Y postcode district happen on a single carriageway. Around 14.1% were recorded in adverse weather such as rain, snow or fog.
The collisions in the SW1Y postcode district have produced 2,120 casualties. Pedestrians account for 29.7% 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 160 collisions, Monday 206 collisions, Tuesday 278 collisions, Wednesday 298 collisions, Thursday 307 collisions, Friday 338 collisions, Saturday 252 collisions.
Light conditions
Light conditions: Daylight 1,118 collisions, Darkness 721 collisions.
Road type
Road type: Single carriageway 1,014 collisions, One way street/Slip road 318 collisions, One way street 271 collisions, Dual carriageway 175 collisions, Unknown 34 collisions, Roundabout 19 collisions, Slip road 8 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 202 collisions, 30 mph 1,634 collisions, 40 mph 2 collisions, 50 mph 1 collisions.
Weather at the time
Weather at the time: Fine no high winds 1,572 collisions, Raining no high winds 177 collisions, Other 37 collisions, Unknown 31 collisions, Fine + high winds 8 collisions.
Who was hurt
Who was hurt: Driver or rider 1,069 casualties, Passenger 422 casualties, Pedestrian 629 casualties.
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Recent Accidents
Showing 20 of 252 accidents
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SeriousFrequently asked questions about road accidents in the SW1Y postcode district
How many road accidents have there been in the SW1Y postcode district?
1,839 collisions have been recorded in the SW1Y postcode district in the STATS19 road safety data between 1999 and 2025, involving 2,120 casualties.
How many of the collisions in the SW1Y postcode district were serious or fatal?
8 were fatal and 252 were serious — 14.1% of all recorded collisions in the SW1Y postcode district resulted in a death or serious injury.
When do most road accidents happen in the SW1Y postcode district?
Friday is the most common day for collisions in the SW1Y postcode district, accounting for 18.4% of them, and 39.2% of all collisions here happen in darkness.
What kind of roads do collisions in the SW1Y postcode district happen on?
55.1% of collisions in the SW1Y postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the SW1Y postcode district?
Pedestrians make up 29.7% of the 2,120 casualties recorded in the SW1Y postcode district.
Is road safety in the SW1Y postcode district getting better or worse?
Recorded collisions in the SW1Y postcode district rose 12% in 2025 compared with 2024. 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 SW1Y 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 SW1Y postcode district cover 1999 to 2025.