Merton road traffic accidents
Merton recorded 12,428 collisions in the STATS19 data between 1999 and 2025, involving 14,665 casualties. Of these collisions, 67 were fatal and 1,671 were serious. Recorded collisions in 2025 were up 5% on 2024.
Severity Breakdown
- Fatal
- 67
- Serious
- 1,671
- Casualties
- 14,665
- Fatal
- 67
- Serious
- 1,671
- Casualties
- 14,665
Collisions by Year
Areas covering Merton
Roads in Merton
Postcode districts in Merton
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in Merton
Road collision statistics for Merton
Collisions recorded
12,428
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
14,665
Casualties recorded across every collision in this area.
Fatal collisions
67
Collisions in which at least one person died.
Serious collisions
1,671
14% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in Merton
Collisions in Merton are most frequently recorded on a Friday (17% of the total), with 27.9% happening in darkness rather than daylight. The most common posted speed limit at the scene is 30 mph.
76.4% of recorded collisions in Merton happen on a single carriageway. Around 18.2% were recorded in adverse weather such as rain, snow or fog.
The collisions in Merton have produced 14,665 casualties. Pedestrians account for 18.5% 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 1,225 collisions, Monday 1,738 collisions, Tuesday 1,881 collisions, Wednesday 1,981 collisions, Thursday 1,842 collisions, Friday 2,112 collisions, Saturday 1,649 collisions.
Light conditions
Light conditions: Daylight 8,962 collisions, Darkness 3,466 collisions.
Road type
Road type: Single carriageway 9,494 collisions, Dual carriageway 1,438 collisions, Roundabout 571 collisions, One way street 308 collisions, Unknown 277 collisions, One way street/Slip road 211 collisions, Slip road 129 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 1,945 collisions, 30 mph 10,133 collisions, 40 mph 263 collisions, 50 mph 85 collisions, 60 mph 2 collisions.
Weather at the time
Weather at the time: Fine no high winds 10,103 collisions, Raining no high winds 1,375 collisions, Unknown 482 collisions, Other 314 collisions, Fine + high winds 61 collisions.
Who was hurt
Who was hurt: Driver or rider 9,435 casualties, Passenger 2,520 casualties, Pedestrian 2,710 casualties.
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Recent Accidents
Showing 20 of 12,428 accidents
Accident 2019010181697
SlightAccident 2019010181665
SeriousAccident 2019010181629
SeriousAccident 2019010181519
SlightAccident 2019010181429
SlightAccident 2019010181314
SlightAccident 2019010181059
SlightAccident 2019010181385
SlightAccident 2019010181009
SeriousAccident 2019010180985
SlightAccident 2019010180269
SlightAccident 2019010180142
SlightAccident 2019010181475
SlightAccident 2019010179895
SlightAccident 2019010179534
SeriousAccident 2019010179253
SeriousAccident 2019010179197
SlightAccident 2019010178912
SlightAccident 2019010178906
SlightAccident 2019010178885
SlightFrequently asked questions about road accidents in Merton
How many road accidents have there been in Merton?
12,428 collisions have been recorded in Merton in the STATS19 road safety data between 1999 and 2025, involving 14,665 casualties.
How many of the collisions in Merton were serious or fatal?
67 were fatal and 1,671 were serious — 14% of all recorded collisions in Merton resulted in a death or serious injury.
When do most road accidents happen in Merton?
Friday is the most common day for collisions in Merton, accounting for 17% of them, and 27.9% of all collisions here happen in darkness.
What kind of roads do collisions in Merton happen on?
76.4% of collisions in Merton are recorded on a single carriageway, most often where the limit is 30 mph.
Are pedestrians often hurt in collisions in Merton?
Pedestrians make up 18.5% of the 14,665 casualties recorded in Merton.
Is road safety in Merton getting better or worse?
Recorded collisions in Merton rose 5% 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 Merton 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 Merton cover 1999 to 2025.