SN11 postcode district road traffic accidents
The SN11 postcode district recorded 955 collisions in the STATS19 data between 1999 and 2025, involving 1,242 casualties. Of these collisions, 27 were fatal and 141 were serious. Recorded collisions in 2025 were up 28% on 2024.
Severity Breakdown
- Fatal
- 27
- Serious
- 141
- Casualties
- 1,242
- Fatal
- 27
- Serious
- 141
- Casualties
- 1,242
Collisions by Year
Areas covering SN11
Towns in SN11
Roads in SN11
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the SN11 postcode district
Road collision statistics for the SN11 postcode district
Collisions recorded
955
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
1,242
Casualties recorded across every collision in this area.
Fatal collisions
27
Collisions in which at least one person died.
Serious collisions
141
17.6% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the SN11 postcode district
Collisions in the SN11 postcode district are most frequently recorded on a Wednesday (16.6% of the total), with 25% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
94.5% of recorded collisions in the SN11 postcode district happen on a single carriageway. Around 17.3% were recorded in adverse weather such as rain, snow or fog.
The collisions in the SN11 postcode district have produced 1,242 casualties. Pedestrians account for 11.9% 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 107 collisions, Monday 127 collisions, Tuesday 145 collisions, Wednesday 159 collisions, Thursday 154 collisions, Friday 145 collisions, Saturday 118 collisions.
Light conditions
Light conditions: Daylight 716 collisions, Darkness 239 collisions.
Road type
Road type: Single carriageway 902 collisions, Roundabout 41 collisions, One way street 5 collisions, Unknown 3 collisions, Dual carriageway 2 collisions, Slip road 1 collisions, One way street/Slip road 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 20 collisions, 30 mph 371 collisions, 40 mph 107 collisions, 50 mph 107 collisions, 60 mph 350 collisions.
Weather at the time
Weather at the time: Fine no high winds 790 collisions, Raining no high winds 102 collisions, Unknown 21 collisions, Raining + high winds 16 collisions, Fog or mist 8 collisions.
Who was hurt
Who was hurt: Driver or rider 845 casualties, Passenger 249 casualties, Pedestrian 148 casualties.
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Recent Accidents
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FatalFrequently asked questions about road accidents in the SN11 postcode district
How many road accidents have there been in the SN11 postcode district?
955 collisions have been recorded in the SN11 postcode district in the STATS19 road safety data between 1999 and 2025, involving 1,242 casualties.
How many of the collisions in the SN11 postcode district were serious or fatal?
27 were fatal and 141 were serious — 17.6% of all recorded collisions in the SN11 postcode district resulted in a death or serious injury.
When do most road accidents happen in the SN11 postcode district?
Wednesday is the most common day for collisions in the SN11 postcode district, accounting for 16.6% of them, and 25% of all collisions here happen in darkness.
What kind of roads do collisions in the SN11 postcode district happen on?
94.5% of collisions in the SN11 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the SN11 postcode district?
Pedestrians make up 11.9% of the 1,242 casualties recorded in the SN11 postcode district.
Is road safety in the SN11 postcode district getting better or worse?
Recorded collisions in the SN11 postcode district rose 28% 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 SN11 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 SN11 postcode district cover 1999 to 2025.