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CrashStats

A340 accidents: crash map and statistics

Police recorded 2,012 collisions on the A340 from 1979 to 2025, with 2,862 casualties. Of those crashes, 40 were fatal and 434 serious, and 42 people were killed.

In 2025 there were 23 collisions on the A340, down 12% from 26 in 2024, with 31 casualties.

Collisions since 1979
2,012
578th highest of 4,923 roads
Casualties
2,862
1.42 per collision
Fatal collisions
40
42 people killed
Serious collisions
434
517 seriously injured
Collisions in 2025
23
Down 12% on 2024
Casualties in 2025
31
Down 18% on 2024

Crash severity on the A340

On the A340, 2% of collisions were fatal and 22% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal402%
  • Serious43422%
  • Slight1,53876%

Where the A340 ranks among 4,923 roads

Most collisions
578th
Most casualties
552nd
Most fatal collisions
527th
Most serious collisions
492nd

A340 accidents by year

Collisions on the A340 peaked at 67 in 1992 and were down to 23 in 2025.

Collisions and casualties on the A340, 1979 to 2025

  • Collisions
  • Collisions in 2025: 23
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252331
20242638
20231820
20222132
20212334
20202229
20192440
20181929
20172025
20163849
20152733
20143043
20133546
20123652
20113150
20103147
20093559
20083543
20076291
20064154
20054456
20043747
20034662
20025275
20016192
20006083
19995272
19986294
19975879
19966092
19954972
19945790
19936382
19926797
19915175
19905283
19896087
19884973
19875880
19865382
19855879
19845174
19834252
19825875
19813950
19804068
19793646

When crashes happen on the A340

Thursday has the most collisions on the A340 (329), and 3pm to 6pm is the busiest time of day (525).

Collisions by day of the week

  • Monday304 (15%)
  • Tuesday313 (16%)
  • Wednesday325 (16%)
  • Thursday329 (16%)
  • Friday301 (15%)
  • Saturday249 (12%)
  • Sunday191 (9.5%)

Collisions by time of day

  • Midnight to 3am55 (2.7%)
  • 3am to 6am17 (0.8%)
  • 6am to 9am302 (15%)
  • 9am to noon269 (13%)
  • Noon to 3pm346 (17%)
  • 3pm to 6pm525 (26%)
  • 6pm to 9pm331 (16%)
  • 9pm to midnight167 (8.3%)

Collisions by month

  • January177 (8.8%)
  • February130 (6.5%)
  • March154 (7.7%)
  • April153 (7.6%)
  • May168 (8.3%)
  • June179 (8.9%)
  • July187 (9.3%)
  • August139 (6.9%)
  • September163 (8.1%)
  • October189 (9.4%)
  • November204 (10%)
  • December169 (8.4%)

Light conditions at the time

  • Daylight1,448 (72%)
  • Dark, no street lighting283 (14%)
  • Dark, street lights lit237 (12%)
  • Dark, lighting unknown36 (1.8%)
  • Dark, street lights unlit8 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A340 crashes

On the A340, 37% of collisions happened where the speed limit was 60 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph2 (0.1%)
  • 30 mph543 (27%)
  • 40 mph147 (7.3%)
  • 50 mph342 (17%)
  • 60 mph753 (37%)
  • 70 mph225 (11%)

Weather at the time

  • Fine, no high winds1,614 (80%)
  • Raining, no high winds276 (14%)
  • Raining with high winds22 (1.1%)
  • Fine with high winds21 (1%)
  • Other74 (3.7%)
  • Not recorded5 (0.2%)

Road surface

  • Dry1,315 (65%)
  • Wet or damp661 (33%)
  • Frost or ice22 (1.1%)
  • Snow7 (0.3%)
  • Other6 (0.3%)
  • Not recorded1 (under 0.1%)

Type of road

  • Single carriageway1,461 (73%)
  • Roundabout268 (13%)
  • Dual carriageway242 (12%)
  • One way street or slip road33 (1.6%)
  • Not recorded8 (0.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A340 crashes

Car occupants make up 74% of the people killed or injured on the A340, followed by motorcyclists (13%).

Casualties by road user

  • Car occupant2,125 (74%)
  • Motorcyclist364 (13%)
  • Cyclist122 (4.3%)
  • Pedestrian101 (3.5%)
  • Van occupant64 (2.2%)
  • Goods vehicle occupant (over 3.5 tonnes)32 (1.1%)
  • Bus or coach occupant18 (0.6%)
  • Other36 (1.3%)

Vehicles involved

  • Car3,074 (77%)
  • Motorcycle376 (9.4%)
  • Van or goods vehicle up to 3.5 tonnes176 (4.4%)
  • Goods vehicle over 3.5 tonnes148 (3.7%)
  • Pedal cycle123 (3.1%)
  • Bus or coach40 (1%)
  • Other58 (1.5%)
  • Not recorded2 (0.1%)

Casualties by age

  • 0 to 538 (1.3%)
  • 6 to 1068 (2.4%)
  • 11 to 1596 (3.4%)
  • 16 to 20495 (17%)
  • 21 to 25435 (15%)
  • 26 to 35542 (19%)
  • 36 to 45434 (15%)
  • 46 to 55333 (12%)
  • 56 to 65207 (7.2%)
  • 66 to 75121 (4.2%)
  • Over 7569 (2.4%)
  • Not recorded24 (0.8%)

Drivers, passengers and pedestrians

  • Driver or rider2,008 (70%)
  • Passenger753 (26%)
  • Pedestrian101 (3.5%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A340

Map of the 25 most recent crashes on the A340

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A340 crashes by council area

Collisions on the A340 were recorded in 2 council areas. Basingstoke and Deane has the most, with 1,333, followed by West Berkshire (676).

Collisions on the A340 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBasingstoke and Deane1,3331,83722289
2ndWest Berkshire6761,02218145

A340 crashes by town

Collisions on the A340 were recorded in 4 towns and built-up areas, led by Tadley (430) and Basingstoke (170).

Recent crashes on the A340

These are the 25 most recent collisions on the A340, from 2 December 2024 to 24 November 2025.

Severity