HP4 postcode district road traffic accidents
The HP4 postcode district recorded 937 collisions in the STATS19 data between 1999 and 2025, involving 1,294 casualties. Of these collisions, 11 were fatal and 185 were serious. Recorded collisions in 2025 were up 22% on 2024.
Severity Breakdown
- Fatal
- 11
- Serious
- 185
- Casualties
- 1,294
- Fatal
- 11
- Serious
- 185
- Casualties
- 1,294
Collisions by Year
Areas covering HP4
Towns in HP4
Roads in HP4
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the HP4 postcode district
Road collision statistics for the HP4 postcode district
Collisions recorded
937
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
1,294
Casualties recorded across every collision in this area.
Fatal collisions
11
Collisions in which at least one person died.
Serious collisions
185
20.9% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the HP4 postcode district
Collisions in the HP4 postcode district are most frequently recorded on a Friday (17.5% of the total), with 22.8% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
85.6% of recorded collisions in the HP4 postcode district happen on a single carriageway. Around 19.4% were recorded in adverse weather such as rain, snow or fog.
The collisions in the HP4 postcode district have produced 1,294 casualties. Pedestrians account for 11% 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 111 collisions, Monday 109 collisions, Tuesday 137 collisions, Wednesday 144 collisions, Thursday 133 collisions, Friday 164 collisions, Saturday 139 collisions.
Light conditions
Light conditions: Daylight 723 collisions, Darkness 214 collisions.
Road type
Road type: Single carriageway 802 collisions, Dual carriageway 92 collisions, Roundabout 26 collisions, Slip road 7 collisions, One way street/Slip road 6 collisions, One way street 4 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 27 collisions, 30 mph 520 collisions, 40 mph 62 collisions, 50 mph 9 collisions, 60 mph 228 collisions, 70 mph 91 collisions.
Weather at the time
Weather at the time: Fine no high winds 746 collisions, Raining no high winds 121 collisions, Other 31 collisions, Unknown 11 collisions, Fine + high winds 9 collisions.
Who was hurt
Who was hurt: Driver or rider 896 casualties, Passenger 256 casualties, Pedestrian 142 casualties.
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Recent Accidents
Showing 20 of 937 accidents
Accident 19994100D0381
SeriousAccident 19994100D0376
SlightAccident 19994100D0354
SlightAccident 19994100D0349
SlightAccident 19994100D0348
SeriousAccident 19994100D0334
SlightAccident 19994100D0312
SlightAccident 19994100D0302
SlightAccident 199943N163089
SlightAccident 19994100D0317
SlightAccident 19994100D0294
SlightAccident 19994100D0282
SlightAccident 19994100D0279
SeriousAccident 19994100D0273
SlightAccident 19994100D0256
SlightAccident 19994100D0243
SeriousAccident 19994100D0240
SlightAccident 19994100D0235
SlightAccident 19994100D0232
SlightAccident 19994100D0204
SlightFrequently asked questions about road accidents in the HP4 postcode district
How many road accidents have there been in the HP4 postcode district?
937 collisions have been recorded in the HP4 postcode district in the STATS19 road safety data between 1999 and 2025, involving 1,294 casualties.
How many of the collisions in the HP4 postcode district were serious or fatal?
11 were fatal and 185 were serious — 20.9% of all recorded collisions in the HP4 postcode district resulted in a death or serious injury.
When do most road accidents happen in the HP4 postcode district?
Friday is the most common day for collisions in the HP4 postcode district, accounting for 17.5% of them, and 22.8% of all collisions here happen in darkness.
What kind of roads do collisions in the HP4 postcode district happen on?
85.6% of collisions in the HP4 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the HP4 postcode district?
Pedestrians make up 11% of the 1,294 casualties recorded in the HP4 postcode district.
Is road safety in the HP4 postcode district getting better or worse?
Recorded collisions in the HP4 postcode district rose 22% 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 HP4 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 HP4 postcode district cover 1999 to 2025.