Portsmouth road traffic accidents
Portsmouth recorded 14,960 collisions in the STATS19 data between 1999 and 2024, involving 17,565 casualties. Of these collisions, 57 were fatal and 2,321 were serious. Recorded collisions in 2024 were up 2% on 2023.
Severity Breakdown
- Fatal
- 57
- Serious
- 2,321
- Casualties
- 17,565
- Fatal
- 57
- Serious
- 2,321
- Casualties
- 17,565
Collisions by Year
Areas covering Portsmouth
Roads in Portsmouth
Postcode districts in Portsmouth
Accidents in Portsmouth
Road collision statistics for Portsmouth
Collisions recorded
14,960
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
17,565
Casualties recorded across every collision in this area.
Fatal collisions
57
Collisions in which at least one person died.
Serious collisions
2,321
15.9% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Portsmouth
Collisions in Portsmouth are most frequently recorded on a Friday (16.7% of the total), with 26.4% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
78.3% of recorded collisions in Portsmouth happen on a single carriageway. Around 13.4% were recorded in adverse weather such as rain, snow or fog.
The collisions in Portsmouth have produced 17,565 casualties. Pedestrians account for 17.2% 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 1,435 collisions, Monday 2,119 collisions, Tuesday 2,382 collisions, Wednesday 2,258 collisions, Thursday 2,329 collisions, Friday 2,501 collisions, Saturday 1,936 collisions.
Light conditions
Light conditions: Daylight 11,018 collisions, Darkness 3,942 collisions.
Road type
Road type: Single carriageway 11,709 collisions, Dual carriageway 1,626 collisions, Roundabout 1,178 collisions, One way street 241 collisions, Other 130 collisions, Slip road 48 collisions, Unknown 28 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 1,198 collisions, 30 mph 12,020 collisions, 40 mph 1,036 collisions, 50 mph 130 collisions, 60 mph 175 collisions, 70 mph 401 collisions.
Weather at the time
Weather at the time: Fine no high winds 12,754 collisions, Raining no high winds 1,426 collisions, Other 240 collisions, Raining + high winds 233 collisions, Fine + high winds 206 collisions.
Who was hurt
Who was hurt: Driver or rider 11,356 casualties, Passenger 3,186 casualties, Pedestrian 3,023 casualties.
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Recent Accidents
Showing 20 of 14,960 accidents
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SlightFrequently asked questions about road accidents in Portsmouth
How many road accidents have there been in Portsmouth?
14,960 collisions have been recorded in Portsmouth in the STATS19 road safety data between 1999 and 2024, involving 17,565 casualties.
How many of the collisions in Portsmouth were serious or fatal?
57 were fatal and 2,321 were serious — 15.9% of all recorded collisions in Portsmouth resulted in a death or serious injury.
When do most road accidents happen in Portsmouth?
Friday is the most common day for collisions in Portsmouth, accounting for 16.7% of them, and 26.4% of all collisions here happen in darkness.
What kind of roads do collisions in Portsmouth happen on?
78.3% of collisions in Portsmouth are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Portsmouth?
Pedestrians make up 17.2% of the 17,565 casualties recorded in Portsmouth.
Is road safety in Portsmouth getting better or worse?
Recorded collisions in Portsmouth rose 2% in 2024 compared with 2023. 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 Portsmouth 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 Portsmouth cover 1999 to 2024.