N21 postcode district road traffic accidents
The N21 postcode district recorded 964 collisions in the STATS19 data between 1999 and 2024, involving 1,152 casualties. Of these collisions, 9 were fatal and 123 were serious. Recorded collisions in 2024 were down 32% on 2023.
Severity Breakdown
- Fatal
- 9
- Serious
- 123
- Casualties
- 1,152
- Fatal
- 9
- Serious
- 123
- Casualties
- 1,152
Collisions by Year
Areas covering N21
Roads in N21
Accidents in the N21 postcode district
Road collision statistics for the N21 postcode district
Collisions recorded
964
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
1,152
Casualties recorded across every collision in this area.
Fatal collisions
9
Collisions in which at least one person died.
Serious collisions
123
13.7% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the N21 postcode district
Collisions in the N21 postcode district are most frequently recorded on a Wednesday (16.4% of the total), with 29.5% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
85.5% of recorded collisions in the N21 postcode district happen on a single carriageway. Around 19.3% were recorded in adverse weather such as rain, snow or fog.
The collisions in the N21 postcode district have produced 1,152 casualties. Pedestrians account for 15.4% 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 95 collisions, Monday 136 collisions, Tuesday 141 collisions, Wednesday 158 collisions, Thursday 135 collisions, Friday 146 collisions, Saturday 153 collisions.
Light conditions
Light conditions: Daylight 680 collisions, Darkness 284 collisions.
Road type
Road type: Single carriageway 824 collisions, Roundabout 69 collisions, Dual carriageway 28 collisions, Unknown 28 collisions, One way street 8 collisions, Slip road 6 collisions, Other 1 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 34 collisions, 30 mph 927 collisions, 40 mph 3 collisions.
Weather at the time
Weather at the time: Fine no high winds 778 collisions, Raining no high winds 119 collisions, Unknown 28 collisions, Other 24 collisions, Fog or mist 6 collisions.
Who was hurt
Who was hurt: Driver or rider 757 casualties, Passenger 218 casualties, Pedestrian 177 casualties.
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Recent Accidents
Showing 20 of 123 accidents
Accident 2024010543166
SeriousAccident 2024010544133
SeriousAccident 2024010521528
SeriousAccident 2023010464538
SeriousAccident 2023010461880
SeriousAccident 2023010455302
SeriousAccident 2023010436773
SeriousAccident 2023010419866
SeriousAccident 2022010391503
SeriousAccident 2022010366762
SeriousAccident 2022010364629
SeriousAccident 2022010389141
SeriousAccident 2021010315093
SeriousAccident 2021010308887
SeriousAccident 2020010271764
SeriousAccident 2020010267319
SeriousAccident 2020010254769
SeriousAccident 2020010238801
SeriousAccident 2020010238515
SeriousAccident 2019010218709
SeriousFrequently asked questions about road accidents in the N21 postcode district
How many road accidents have there been in the N21 postcode district?
964 collisions have been recorded in the N21 postcode district in the STATS19 road safety data between 1999 and 2024, involving 1,152 casualties.
How many of the collisions in the N21 postcode district were serious or fatal?
9 were fatal and 123 were serious — 13.7% of all recorded collisions in the N21 postcode district resulted in a death or serious injury.
When do most road accidents happen in the N21 postcode district?
Wednesday is the most common day for collisions in the N21 postcode district, accounting for 16.4% of them, and 29.5% of all collisions here happen in darkness.
What kind of roads do collisions in the N21 postcode district happen on?
85.5% of collisions in the N21 postcode district are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in the N21 postcode district?
Pedestrians make up 15.4% of the 1,152 casualties recorded in the N21 postcode district.
Is road safety in the N21 postcode district getting better or worse?
Recorded collisions in the N21 postcode district fell 32% in 2024 compared with 2023, though year-on-year figures move with both genuine risk and changes in reporting.
Where does the road accident data for the N21 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 N21 postcode district cover 1999 to 2024.