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CrashStats

CO1 road accidents: crash map and statistics

Collisions since 1979
4,080
863rd highest of 2,813 postcode districts
Casualties
4,879
1.20 per collision
Fatal collisions
31
34 people killed
Serious collisions
717
757 seriously injured
Collisions in 2025
45
Up 18% on 2024
Casualties in 2025
54
Up 29% on 2024

Road collision statistics for CO1

Collisions by severity, 1979 to 2025

  • Fatal310.8%
  • Serious71718%
  • Slight3,33282%

What the data shows

  • CO1 had 484 collisions from 2016 to 2025, 24% fewer than the 633 from 2006 to 2015.
  • 18% of collisions in CO1 were fatal or serious, against 20% across Great Britain.
  • 442 children under 16 were killed or injured in CO1, 9.3% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 29% of collisions in CO1.

Where CO1 ranks among 2,813 postcode districts

Most collisions
863rd
Most casualties
1,035th
Most fatal collisions
1,815th
Most serious collisions
925th

Collisions by day of the week

  • Monday545 (13%)
  • Tuesday617 (15%)
  • Wednesday627 (15%)
  • Thursday593 (15%)
  • Friday770 (19%)
  • Saturday598 (15%)
  • Sunday330 (8.1%)

Light conditions

  • Daylight2,830 (69%)
  • Dark, street lights lit1,191 (29%)
  • Dark, lighting unknown33 (0.8%)
  • Dark, street lights unlit15 (0.4%)
  • Dark, no street lighting11 (0.3%)

Type of road

  • Single carriageway2,692 (66%)
  • Roundabout652 (16%)
  • One way street or slip road465 (11%)
  • Dual carriageway251 (6.2%)
  • Not recorded20 (0.5%)

Speed limit at the scene

  • 20 mph81 (2%)
  • 30 mph3,361 (82%)
  • 40 mph353 (8.7%)
  • 50 mph254 (6.2%)
  • 60 mph22 (0.5%)
  • 70 mph9 (0.2%)

Weather at the time

  • Fine, no high winds3,475 (85%)
  • Raining, no high winds428 (10%)
  • Fine with high winds32 (0.8%)
  • Raining with high winds32 (0.8%)
  • Fog or mist15 (0.4%)
  • Snowing, no high winds14 (0.3%)
  • Snowing with high winds1 (under 0.1%)
  • Other61 (1.5%)
  • Not recorded22 (0.5%)

Who was hurt

  • Car occupant2,024 (41%)
  • Pedestrian1,066 (22%)
  • Motorcyclist927 (19%)
  • Cyclist622 (13%)
  • Bus or coach occupant104 (2.1%)
  • Van occupant69 (1.4%)
  • Taxi or private hire car occupant27 (0.6%)
  • Other vehicle occupant14 (0.3%)
  • Goods vehicle occupant (over 3.5 tonnes)8 (0.2%)
  • Mobility scooter rider3 (0.1%)
  • Other4 (0.1%)
  • Not recorded11 (0.2%)

Source: Department for Transport, STATS19 road safety data

CO1 road accidents by year

Collisions and casualties in CO1, 1979 to 2025

Collisions in CO1 peaked at 162 in 1988; 2025 had 45.

  • Collisions
  • Collisions in 2025: 45
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20254554
20243842
20235665
20225359
20214861
20203338
20195369
20186473
20174147
20165362
201592103
20145659
20135660
20126064
20116378
20106270
20095875
20084654
20077690
20066472
20058195
200484102
2003104128
200284104
200199122
2000117140
199989104
199882102
199790112
19967898
199596119
199480111
19938592
1992111131
1991122160
1990124143
1989151190
1988162206
1987135165
1986116135
1985132151
1984125144
198393106
1982114140
1981129152
1980146168
1979134164

Map of recent crashes in CO1

Map of the 24 most recent crashes in CO1

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 24 crashes
  • Serious
  • Slight

Recent road crashes in CO1

The 24 most recent collisions in CO1 happened between 29 June and 21 December 2025.

Severity

Crashes by road in CO1

The A134 has the most collisions in CO1, 906 of 4,080 (22%), followed by the A133 (784).

Collisions in CO1 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA1349061,1148178
2ndA1337841,0069109
3rdA1124361405365
4thA1232316385355
5thA137167196026
6thB1022354305
7thA604333904
8thB102581100
9thB15086701
10thB10234501
11thB10264600
12thA1363300

Council area for CO1

CO1 is in Colchester, where police recorded 24,962 collisions from 1979 to 2025. CO1 accounts for 16% of them.

Towns in CO1

Collisions in CO1 were recorded in 2 towns, led by Colchester (3,894) and Tiptree (39).