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CrashStats

A330 accidents: crash map and statistics

Police recorded 1,134 collisions on the A330 from 1979 to 2025, with 1,612 casualties. Of those crashes, 19 were fatal and 206 serious, and 21 people were killed.

In 2025 there were 8 collisions on the A330, up 60% from 5 in 2024, with 10 casualties.

Collisions since 1979
1,134
961st highest of 4,923 roads
Casualties
1,612
1.42 per collision
Fatal collisions
19
21 people killed
Serious collisions
206
243 seriously injured
Collisions in 2025
8
Up 60% on 2024
Casualties in 2025
10
Up 43% on 2024

Crash severity on the A330

On the A330, 1.7% of collisions were fatal and 18% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal191.7%
  • Serious20618%
  • Slight90980%

Where the A330 ranks among 4,923 roads

Most collisions
961st
Most casualties
915th
Most fatal collisions
1,031st
Most serious collisions
1,020th

A330 accidents by year

Collisions on the A330 peaked at 47 in 1995 and were down to 8 in 2025.

Collisions and casualties on the A330, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025810
202457
202357
202278
202177
2020612
20191518
201834
20171215
20161519
20151722
20141720
20131317
20122637
20112130
20101924
20091827
20083041
20072232
20062435
20052638
20042741
20033038
20024566
20013046
20003544
19992936
19983949
19973148
19963347
19954774
19942540
19932839
19922742
19912435
19903551
19892843
19882834
19872733
19862742
19852632
19843647
19833234
19823764
19814073
19802336
19792948

When crashes happen on the A330

Friday has the most collisions on the A330 (195), and 3pm to 6pm is the busiest time of day (236).

Collisions by day of the week

  • Monday161 (14%)
  • Tuesday139 (12%)
  • Wednesday187 (16%)
  • Thursday174 (15%)
  • Friday195 (17%)
  • Saturday151 (13%)
  • Sunday127 (11%)

Collisions by time of day

  • Midnight to 3am50 (4.4%)
  • 3am to 6am8 (0.7%)
  • 6am to 9am201 (18%)
  • 9am to noon171 (15%)
  • Noon to 3pm191 (17%)
  • 3pm to 6pm236 (21%)
  • 6pm to 9pm167 (15%)
  • 9pm to midnight110 (9.7%)

Collisions by month

  • January98 (8.6%)
  • February85 (7.5%)
  • March61 (5.4%)
  • April73 (6.4%)
  • May91 (8%)
  • June119 (10%)
  • July114 (10%)
  • August81 (7.1%)
  • September108 (9.5%)
  • October105 (9.3%)
  • November105 (9.3%)
  • December94 (8.3%)

Light conditions at the time

  • Daylight833 (73%)
  • Dark, no street lighting189 (17%)
  • Dark, street lights lit104 (9.2%)
  • Dark, lighting unknown5 (0.4%)
  • Dark, street lights unlit3 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A330 crashes

On the A330, 40% of collisions happened where the speed limit was 60 mph and 60% on a dry road surface.

Speed limit at the scene

  • 20 mph11 (1%)
  • 30 mph232 (20%)
  • 40 mph323 (28%)
  • 50 mph114 (10%)
  • 60 mph452 (40%)
  • 70 mph1 (0.1%)
  • Not recorded1 (0.1%)

Weather at the time

  • Fine, no high winds889 (78%)
  • Raining, no high winds160 (14%)
  • Fine with high winds12 (1.1%)
  • Fog or mist11 (1%)
  • Other57 (5%)
  • Not recorded5 (0.4%)

Road surface

  • Dry680 (60%)
  • Wet or damp412 (36%)
  • Frost or ice34 (3%)
  • Flood over 3cm deep3 (0.3%)
  • Snow3 (0.3%)
  • Not recorded2 (0.2%)

Type of road

  • Single carriageway1,089 (96%)
  • Roundabout25 (2.2%)
  • Dual carriageway18 (1.6%)
  • One way street or slip road1 (0.1%)
  • Not recorded1 (0.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A330 crashes

Car occupants make up 77% of the people killed or injured on the A330, followed by motorcyclists (8.4%).

Casualties by road user

  • Car occupant1,248 (77%)
  • Motorcyclist135 (8.4%)
  • Cyclist78 (4.8%)
  • Pedestrian62 (3.8%)
  • Van occupant46 (2.9%)
  • Taxi or private hire car occupant15 (0.9%)
  • Goods vehicle occupant (over 3.5 tonnes)12 (0.7%)
  • Other16 (1%)

Vehicles involved

  • Car1,785 (81%)
  • Motorcycle135 (6.1%)
  • Van or goods vehicle up to 3.5 tonnes93 (4.2%)
  • Pedal cycle79 (3.6%)
  • Goods vehicle over 3.5 tonnes56 (2.5%)
  • Taxi or private hire car19 (0.9%)
  • Other29 (1.3%)
  • Not recorded4 (0.2%)

Casualties by age

  • 0 to 527 (1.7%)
  • 6 to 1024 (1.5%)
  • 11 to 1562 (3.8%)
  • 16 to 20291 (18%)
  • 21 to 25229 (14%)
  • 26 to 35308 (19%)
  • 36 to 45231 (14%)
  • 46 to 55183 (11%)
  • 56 to 65120 (7.4%)
  • 66 to 7562 (3.8%)
  • Over 7540 (2.5%)
  • Not recorded35 (2.2%)

Drivers, passengers and pedestrians

  • Driver or rider1,150 (71%)
  • Passenger400 (25%)
  • Pedestrian62 (3.8%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A330

Map of the 25 most recent crashes on the A330

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

  • 25 crashes
  • Serious
  • Slight

A330 crashes by council area

Collisions on the A330 were recorded in 2 council areas. Windsor and Maidenhead has the most, with 786, followed by Bracknell Forest (345).

Collisions on the A330 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWindsor and Maidenhead7861,10414144
2ndBracknell Forest345504562

A330 crashes by town

Collisions on the A330 were recorded in 3 towns and built-up areas, led by Ascot (188) and North Ascot (35).

Recent crashes on the A330

These are the 25 most recent collisions on the A330, from 8 January 2022 to 18 July 2025.

Severity