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CrashStats

A31 accidents: crash map and statistics

Police recorded 10,721 collisions on the A31 from 1979 to 2025, with 16,303 casualties. Of those crashes, 306 were fatal and 2,194 serious, and 338 people were killed.

In 2025 there were 129 collisions on the A31, up 28% from 101 in 2024, with 176 casualties.

Live A31 closures, incidents and roadworks are checked every 5 minutes.

Collisions since 1979
10,721
71st highest of 4,923 roads
Casualties
16,303
1.52 per collision
Fatal collisions
306
338 people killed
Serious collisions
2,194
2,784 seriously injured
Collisions in 2025
129
Up 28% on 2024
Casualties in 2025
176
Up 30% on 2024

Crash severity on the A31

On the A31, 2.9% of collisions were fatal and 20% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal3062.9%
  • Serious2,19420%
  • Slight8,22177%

Where the A31 ranks among 4,923 roads

Most collisions
71st
Most casualties
58th
Most fatal collisions
53rd
Most serious collisions
57th

A31 accidents by year

Collisions on the A31 peaked at 320 in 1990 and were down to 129 in 2025.

Collisions and casualties on the A31, 1979 to 2025

  • Collisions
  • Collisions in 2025: 129
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025129176
2024101135
2023131196
2022139192
2021114173
202087117
2019123165
2018138210
2017147229
2016181287
2015206278
2014181283
2013189286
2012193273
2011185277
2010200306
2009184289
2008193305
2007222331
2006237361
2005244355
2004246390
2003251377
2002309466
2001296477
2000250377
1999267412
1998291453
1997299468
1996261418
1995272451
1994254395
1993266419
1992263398
1991250380
1990320481
1989261400
1988278413
1987288432
1986284419
1985300418
1984298462
1983267451
1982270429
1981277407
1980298411
1979281475

When crashes happen on the A31

Friday has the most collisions on the A31 (1,791), and 3pm to 6pm is the busiest time of day (2,507).

Collisions by day of the week

  • Monday1,479 (14%)
  • Tuesday1,496 (14%)
  • Wednesday1,471 (14%)
  • Thursday1,550 (14%)
  • Friday1,791 (17%)
  • Saturday1,516 (14%)
  • Sunday1,418 (13%)

Collisions by time of day

  • Midnight to 3am364 (3.4%)
  • 3am to 6am229 (2.1%)
  • 6am to 9am1,648 (15%)
  • 9am to noon1,801 (17%)
  • Noon to 3pm1,799 (17%)
  • 3pm to 6pm2,507 (23%)
  • 6pm to 9pm1,507 (14%)
  • 9pm to midnight866 (8.1%)

Collisions by month

  • January852 (7.9%)
  • February743 (6.9%)
  • March804 (7.5%)
  • April875 (8.2%)
  • May907 (8.5%)
  • June916 (8.5%)
  • July992 (9.3%)
  • August979 (9.1%)
  • September968 (9%)
  • October933 (8.7%)
  • November894 (8.3%)
  • December858 (8%)

Light conditions at the time

  • Daylight7,831 (73%)
  • Dark, no street lighting1,669 (16%)
  • Dark, street lights lit910 (8.5%)
  • Dark, street lights unlit159 (1.5%)
  • Dark, lighting unknown150 (1.4%)
  • Not recorded2 (under 0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A31 crashes

On the A31, 43% of collisions happened where the speed limit was 70 mph and 68% on a dry road surface.

Speed limit at the scene

  • 20 mph4 (under 0.1%)
  • 30 mph810 (7.6%)
  • 40 mph927 (8.6%)
  • 50 mph847 (7.9%)
  • 60 mph3,549 (33%)
  • 70 mph4,583 (43%)
  • Not recorded1 (under 0.1%)

Weather at the time

  • Fine, no high winds8,365 (78%)
  • Raining, no high winds1,439 (13%)
  • Raining with high winds177 (1.7%)
  • Fog or mist175 (1.6%)
  • Other437 (4.1%)
  • Not recorded128 (1.2%)

Road surface

  • Dry7,257 (68%)
  • Wet or damp3,105 (29%)
  • Frost or ice251 (2.3%)
  • Flood over 3cm deep55 (0.5%)
  • Other49 (0.5%)
  • Not recorded4 (under 0.1%)

Type of road

  • Dual carriageway5,274 (49%)
  • Single carriageway3,852 (36%)
  • Roundabout1,276 (12%)
  • One way street or slip road290 (2.7%)
  • Not recorded29 (0.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A31 crashes

Car occupants make up 76% of the people killed or injured on the A31, followed by motorcyclists (11%).

Casualties by road user

  • Car occupant12,326 (76%)
  • Motorcyclist1,756 (11%)
  • Van occupant587 (3.6%)
  • Cyclist529 (3.2%)
  • Pedestrian482 (3%)
  • Goods vehicle occupant (over 3.5 tonnes)238 (1.5%)
  • Bus or coach occupant145 (0.9%)
  • Other240 (1.5%)

Vehicles involved

  • Car16,563 (77%)
  • Motorcycle1,717 (8%)
  • Van or goods vehicle up to 3.5 tonnes1,258 (5.8%)
  • Goods vehicle over 3.5 tonnes1,054 (4.9%)
  • Pedal cycle544 (2.5%)
  • Other vehicle177 (0.8%)
  • Other270 (1.3%)
  • Not recorded2 (under 0.1%)

Casualties by age

  • 0 to 5249 (1.5%)
  • 6 to 10385 (2.4%)
  • 11 to 15473 (2.9%)
  • 16 to 202,470 (15%)
  • 21 to 252,229 (14%)
  • 26 to 353,098 (19%)
  • 36 to 452,432 (15%)
  • 46 to 551,890 (12%)
  • 56 to 651,348 (8.3%)
  • 66 to 75980 (6%)
  • Over 75622 (3.8%)
  • Not recorded127 (0.8%)

Drivers, passengers and pedestrians

  • Driver or rider10,831 (66%)
  • Passenger4,990 (31%)
  • Pedestrian482 (3%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A31

Map of the 25 most recent crashes on the A31

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A31 crashes by council area

Collisions on the A31 were recorded in 8 council areas. Dorset has the most, with 2,759, followed by New Forest (2,055) and Guildford (1,700).

Collisions on the A31 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stDorset2,7594,34083570
2ndNew Forest2,0553,12162420
3rdGuildford1,7002,64034266
4thWaverley1,4512,14732218
5thEast Hampshire1,3531,95546348
6thWinchester8111,19934228
7thTest Valley40960712108
8thBournemouth, Christchurch and Poole165269333

A31 crashes by town

Collisions on the A31 were recorded in 16 towns and built-up areas, led by Guildford (357) and Farnham (243).

Recent crashes on the A31

These are the 25 most recent collisions on the A31, from 17 October to 30 December 2025.

Severity