TW9 postcode district road traffic accidents
The TW9 postcode district recorded 2,293 collisions in the STATS19 data between 1999 and 2025, involving 2,619 casualties. Of these collisions, 13 were fatal and 332 were serious. Recorded collisions in 2025 were down 30% on 2024.
Severity Breakdown
- Fatal
- 13
- Serious
- 332
- Casualties
- 2,619
- Fatal
- 13
- Serious
- 332
- Casualties
- 2,619
Collisions by Year
Areas covering TW9
Towns in TW9
Roads in TW9
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the TW9 postcode district
Road collision statistics for the TW9 postcode district
Collisions recorded
2,293
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
2,619
Casualties recorded across every collision in this area.
Fatal collisions
13
Collisions in which at least one person died.
Serious collisions
332
15% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the TW9 postcode district
Collisions in the TW9 postcode district are most frequently recorded on a Friday (17.7% of the total), with 26.6% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
71.5% of recorded collisions in the TW9 postcode district happen on a single carriageway. Around 18.6% were recorded in adverse weather such as rain, snow or fog.
The collisions in the TW9 postcode district have produced 2,619 casualties. Pedestrians account for 18.6% 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 237 collisions, Monday 276 collisions, Tuesday 365 collisions, Wednesday 353 collisions, Thursday 348 collisions, Friday 407 collisions, Saturday 307 collisions.
Light conditions
Light conditions: Daylight 1,683 collisions, Darkness 610 collisions.
Road type
Road type: Single carriageway 1,640 collisions, Dual carriageway 367 collisions, Roundabout 117 collisions, One way street 66 collisions, Unknown 46 collisions, One way street/Slip road 46 collisions, Slip road 11 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 268 collisions, 30 mph 1,914 collisions, 40 mph 108 collisions, 50 mph 3 collisions.
Weather at the time
Weather at the time: Fine no high winds 1,866 collisions, Raining no high winds 238 collisions, Unknown 95 collisions, Other 56 collisions, Raining + high winds 17 collisions.
Who was hurt
Who was hurt: Driver or rider 1,755 casualties, Passenger 377 casualties, Pedestrian 487 casualties.
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Recent Accidents
Showing 20 of 2,293 accidents
Accident 2025010565882
SeriousAccident 2025010563526
SeriousAccident 2025010564290
SeriousAccident 2025010558812
SlightAccident 2025010558668
SlightAccident 2025010557837
SlightAccident 2025010555816
SeriousAccident 2025010554536
SlightAccident 2024010550893
SlightAccident 2024010550041
SeriousAccident 2024010547609
SlightAccident 2024010546488
SlightAccident 2024010546450
SlightAccident 2024010546242
SeriousAccident 2024010545790
SlightAccident 2024010543204
SeriousAccident 2024010542168
SlightAccident 2024010541304
SlightAccident 2024010541483
SeriousAccident 2024010540255
SeriousFrequently asked questions about road accidents in the TW9 postcode district
How many road accidents have there been in the TW9 postcode district?
2,293 collisions have been recorded in the TW9 postcode district in the STATS19 road safety data between 1999 and 2025, involving 2,619 casualties.
How many of the collisions in the TW9 postcode district were serious or fatal?
13 were fatal and 332 were serious — 15% of all recorded collisions in the TW9 postcode district resulted in a death or serious injury.
When do most road accidents happen in the TW9 postcode district?
Friday is the most common day for collisions in the TW9 postcode district, accounting for 17.7% of them, and 26.6% of all collisions here happen in darkness.
What kind of roads do collisions in the TW9 postcode district happen on?
71.5% of collisions in the TW9 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the TW9 postcode district?
Pedestrians make up 18.6% of the 2,619 casualties recorded in the TW9 postcode district.
Is road safety in the TW9 postcode district getting better or worse?
Recorded collisions in the TW9 postcode district fell 30% in 2025 compared with 2024, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for the TW9 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 TW9 postcode district cover 1999 to 2025.