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CrashStats

A308 accidents: crash map and statistics

Police recorded 15,302 collisions on the A308 from 1979 to 2025, with 18,468 casualties. Of those crashes, 167 were fatal and 2,383 serious, and 174 people were killed.

In 2025 there were 164 collisions on the A308, up 4% from 157 in 2024, with 202 casualties.

Live A308 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
15,302
47th highest of 4,923 roads
Casualties
18,468
1.21 per collision
Fatal collisions
167
174 people killed
Serious collisions
2,383
2,632 seriously injured
Collisions in 2025
164
Up 4% on 2024
Casualties in 2025
202
Up 7% on 2024

Crash severity on the A308

On the A308, 1.1% of collisions were fatal and 16% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal1671.1%
  • Serious2,38316%
  • Slight12,75283%

Where the A308 ranks among 4,923 roads

Most collisions
47th
Most casualties
52nd
Most fatal collisions
120th
Most serious collisions
54th

A308 accidents by year

Collisions on the A308 peaked at 493 in 1984 and were down to 164 in 2025.

Collisions and casualties on the A308, 1979 to 2025

  • Collisions
  • Collisions in 2025: 164
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025164202
2024157189
2023228251
2022190216
2021219249
2020185205
2019196231
2018207250
2017235290
2016210250
2015262313
2014320390
2013255305
2012253322
2011274339
2010268328
2009273343
2008279362
2007260310
2006271339
2005262328
2004251320
2003311371
2002311374
2001320401
2000327395
1999357423
1998384451
1997427519
1996432512
1995412501
1994367446
1993367435
1992361435
1991362451
1990423495
1989420489
1988423511
1987408515
1986429504
1985479580
1984493576
1983478571
1982483582
1981380471
1980468545
1979461583

When crashes happen on the A308

Friday has the most collisions on the A308 (2,630), and 3pm to 6pm is the busiest time of day (3,265).

Collisions by day of the week

  • Monday2,079 (14%)
  • Tuesday2,338 (15%)
  • Wednesday2,369 (15%)
  • Thursday2,460 (16%)
  • Friday2,630 (17%)
  • Saturday1,940 (13%)
  • Sunday1,486 (9.7%)

Collisions by time of day

  • Midnight to 3am665 (4.3%)
  • 3am to 6am230 (1.5%)
  • 6am to 9am2,156 (14%)
  • 9am to noon2,280 (15%)
  • Noon to 3pm2,520 (16%)
  • 3pm to 6pm3,265 (21%)
  • 6pm to 9pm2,593 (17%)
  • 9pm to midnight1,593 (10%)

Collisions by month

  • January1,098 (7.2%)
  • February1,076 (7%)
  • March1,233 (8.1%)
  • April1,172 (7.7%)
  • May1,290 (8.4%)
  • June1,287 (8.4%)
  • July1,390 (9.1%)
  • August1,331 (8.7%)
  • September1,299 (8.5%)
  • October1,413 (9.2%)
  • November1,475 (9.6%)
  • December1,238 (8.1%)

Light conditions at the time

  • Daylight10,710 (70%)
  • Dark, street lights lit4,122 (27%)
  • Dark, lighting unknown210 (1.4%)
  • Dark, no street lighting200 (1.3%)
  • Dark, street lights unlit57 (0.4%)
  • Not recorded3 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A308 crashes

On the A308, 72% of collisions happened where the speed limit was 30 mph and 75% on a dry road surface.

Speed limit at the scene

  • 20 mph478 (3.1%)
  • 30 mph10,994 (72%)
  • 40 mph2,309 (15%)
  • 50 mph668 (4.4%)
  • 60 mph679 (4.4%)
  • 70 mph174 (1.1%)

Weather at the time

  • Fine, no high winds11,691 (76%)
  • Raining, no high winds1,838 (12%)
  • Fine with high winds148 (1%)
  • Raining with high winds95 (0.6%)
  • Other1,200 (7.8%)
  • Not recorded330 (2.2%)

Road surface

  • Dry11,450 (75%)
  • Wet or damp3,578 (23%)
  • Frost or ice121 (0.8%)
  • Snow47 (0.3%)
  • Other22 (0.1%)
  • Not recorded84 (0.5%)

Type of road

  • Single carriageway9,711 (63%)
  • Dual carriageway2,364 (15%)
  • Roundabout1,485 (9.7%)
  • One way street or slip road1,157 (7.6%)
  • Not recorded585 (3.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A308 crashes

Car occupants make up 44% of the people killed or injured on the A308, followed by motorcyclists (19%).

Casualties by road user

  • Car occupant8,059 (44%)
  • Motorcyclist3,580 (19%)
  • Cyclist3,009 (16%)
  • Pedestrian2,578 (14%)
  • Bus or coach occupant562 (3%)
  • Van occupant337 (1.8%)
  • Other335 (1.8%)
  • Not recorded8 (under 0.1%)

Vehicles involved

  • Car17,645 (63%)
  • Motorcycle3,824 (14%)
  • Pedal cycle3,119 (11%)
  • Van or goods vehicle up to 3.5 tonnes1,299 (4.6%)
  • Bus or coach821 (2.9%)
  • Taxi or private hire car495 (1.8%)
  • Other758 (2.7%)
  • Not recorded12 (under 0.1%)

Casualties by age

  • 0 to 5209 (1.1%)
  • 6 to 10271 (1.5%)
  • 11 to 15612 (3.3%)
  • 16 to 202,769 (15%)
  • 21 to 252,891 (16%)
  • 26 to 354,306 (23%)
  • 36 to 452,602 (14%)
  • 46 to 551,685 (9.1%)
  • 56 to 651,094 (5.9%)
  • 66 to 75608 (3.3%)
  • Over 75446 (2.4%)
  • Not recorded975 (5.3%)

Drivers, passengers and pedestrians

  • Driver or rider12,412 (67%)
  • Passenger3,478 (19%)
  • Pedestrian2,578 (14%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A308

Map of the 25 most recent crashes on the A308

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

  • 25 crashes
  • Serious
  • Slight

A308 crashes by council area

Collisions on the A308 were recorded in 8 council areas. Spelthorne has the most, with 3,124, followed by Windsor and Maidenhead (2,830) and Kingston upon Thames (2,525).

Collisions on the A308 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stSpelthorne3,1243,93543463
2ndWindsor and Maidenhead2,8303,63653428
3rdKingston upon Thames2,5253,00621395
4thKensington and Chelsea2,4032,66410375
5thHammersmith and Fulham2,0222,18513336
6thRichmond upon Thames1,6161,99213262
7thRunnymede7461,00614119
8thElmbridge202201

A308 crashes by town

Collisions on the A308 were recorded in 13 towns and built-up areas, led by Kingston upon Thames (2,281) and Kensington and Chelsea (2,145).

Recent crashes on the A308

These are the 25 most recent collisions on the A308, from 31 October to 31 December 2025.

Severity