CM4 postcode district road traffic accidents
The CM4 postcode district recorded 1,182 collisions in the STATS19 data between 1999 and 2025, involving 1,606 casualties. Of these collisions, 28 were fatal and 251 were serious. Recorded collisions in 2025 were up 26% on 2024.
Severity Breakdown
- Fatal
- 28
- Serious
- 251
- Casualties
- 1,606
- Fatal
- 28
- Serious
- 251
- Casualties
- 1,606
Collisions by Year
Areas covering CM4
Towns in CM4
Roads in CM4
Planning applications nearby
Data from PlanIndex, an index of UK planning registers.
Data from PlanIndex, an index of UK planning registers.
Accidents in the CM4 postcode district
Road collision statistics for the CM4 postcode district
Collisions recorded
1,182
Police-reported road traffic collisions captured in the STATS19 data.
People injured or killed
1,606
Casualties recorded across every collision in this area.
Fatal collisions
28
Collisions in which at least one person died.
Serious collisions
251
23.6% of collisions here ended in a death or serious injury.
Severity of collisions
What the data shows in the CM4 postcode district
Collisions in the CM4 postcode district are most frequently recorded on a Friday (17.1% of the total), with 29.3% happening in darkness rather than daylight. The most common posted speed limit at the scene is 70 mph.
57.8% of recorded collisions in the CM4 postcode district happen on a single carriageway. Around 19.6% were recorded in adverse weather such as rain, snow or fog.
The collisions in the CM4 postcode district have produced 1,606 casualties. Pedestrians account for 5.2% 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 156 collisions, Monday 178 collisions, Tuesday 149 collisions, Wednesday 174 collisions, Thursday 169 collisions, Friday 202 collisions, Saturday 154 collisions.
Light conditions
Light conditions: Daylight 836 collisions, Darkness 346 collisions.
Road type
Road type: Single carriageway 683 collisions, Dual carriageway 424 collisions, Roundabout 44 collisions, Slip road 19 collisions, One way street/Slip road 7 collisions, One way street 3 collisions, Unknown 2 collisions.
Speed limit at the scene
Speed limit at the scene: 20 mph 7 collisions, 30 mph 189 collisions, 40 mph 159 collisions, 50 mph 12 collisions, 60 mph 385 collisions, 70 mph 430 collisions.
Weather at the time
Weather at the time: Fine no high winds 950 collisions, Raining no high winds 139 collisions, Other 37 collisions, Raining + high winds 15 collisions, Fog or mist 14 collisions.
Who was hurt
Who was hurt: Driver or rider 1,129 casualties, Passenger 394 casualties, Pedestrian 83 casualties.
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Recent Accidents
Showing 20 of 903 accidents
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SlightFrequently asked questions about road accidents in the CM4 postcode district
How many road accidents have there been in the CM4 postcode district?
1,182 collisions have been recorded in the CM4 postcode district in the STATS19 road safety data between 1999 and 2025, involving 1,606 casualties.
How many of the collisions in the CM4 postcode district were serious or fatal?
28 were fatal and 251 were serious — 23.6% of all recorded collisions in the CM4 postcode district resulted in a death or serious injury.
When do most road accidents happen in the CM4 postcode district?
Friday is the most common day for collisions in the CM4 postcode district, accounting for 17.1% of them, and 29.3% of all collisions here happen in darkness.
What kind of roads do collisions in the CM4 postcode district happen on?
57.8% of collisions in the CM4 postcode district are recorded on a single carriageway, most often where the limit is 70 mph.
Are pedestrians often hurt in collisions in the CM4 postcode district?
Pedestrians make up 5.2% of the 1,606 casualties recorded in the CM4 postcode district.
Is road safety in the CM4 postcode district getting better or worse?
Recorded collisions in the CM4 postcode district rose 26% 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 CM4 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 CM4 postcode district cover 1999 to 2025.