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CrashStats

A40(M) accidents: crash map and statistics

Police recorded 579 collisions on the A40(M) from 1979 to 1999, with 743 casualties. Of those crashes, 6 were fatal and 80 serious, and 6 people were killed.

The last recorded collision on the A40(M) was on 16 December 1999.

Collisions since 1979
579
1,742nd highest of 4,923 roads
Casualties
743
1.28 per collision
Fatal collisions
6
6 people killed
Serious collisions
80
92 seriously injured
Last recorded collision
16 Dec 1999
Busiest year
1982
72 collisions

Crash severity on the A40(M)

On the A40(M), 1% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 1999

  • Fatal61%
  • Serious8014%
  • Slight49385%

Where the A40(M) ranks among 4,923 roads

Most collisions
1,742nd
Most casualties
1,834th
Most fatal collisions
2,299th
Most serious collisions
2,279th

A40(M) accidents by year

Collisions on the A40(M) peaked at 72 in 1982, and none have been recorded since 1999.

Collisions and casualties on the A40(M), 1979 to 1999

  • Collisions
  • Collisions in 1999
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
19994466
19983342
19972225
19964147
19953547
19943651
19931922
19923744
19914450
199022
198900
198800
198700
198611
198500
19841420
198311
19827288
19816588
19805466
19795983

When crashes happen on the A40(M)

Friday has the most collisions on the A40(M) (114), and 3pm to 6pm is the busiest time of day (101).

Collisions by day of the week

  • Monday68 (12%)
  • Tuesday80 (14%)
  • Wednesday87 (15%)
  • Thursday91 (16%)
  • Friday114 (20%)
  • Saturday72 (12%)
  • Sunday67 (12%)

Collisions by time of day

  • Midnight to 3am44 (7.6%)
  • 3am to 6am14 (2.4%)
  • 6am to 9am80 (14%)
  • 9am to noon88 (15%)
  • Noon to 3pm97 (17%)
  • 3pm to 6pm101 (17%)
  • 6pm to 9pm90 (16%)
  • 9pm to midnight65 (11%)

Collisions by month

  • January43 (7.4%)
  • February35 (6%)
  • March50 (8.6%)
  • April39 (6.7%)
  • May48 (8.3%)
  • June52 (9%)
  • July47 (8.1%)
  • August56 (9.7%)
  • September42 (7.3%)
  • October60 (10%)
  • November50 (8.6%)
  • December57 (9.8%)

Light conditions at the time

  • Daylight387 (67%)
  • Dark, street lights lit187 (32%)
  • Dark, no street lighting2 (0.3%)
  • Dark, street lights unlit2 (0.3%)
  • Dark, lighting unknown1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A40(M) crashes

On the A40(M), 39% of collisions happened where the speed limit was 60 mph and 65% on a dry road surface.

Speed limit at the scene

  • 30 mph137 (24%)
  • 40 mph18 (3.1%)
  • 50 mph149 (26%)
  • 60 mph228 (39%)
  • 70 mph47 (8.1%)

Weather at the time

  • Fine, no high winds330 (57%)
  • Raining, no high winds95 (16%)
  • Fine with high winds8 (1.4%)
  • Raining with high winds5 (0.9%)
  • Other140 (24%)
  • Not recorded1 (0.2%)

Road surface

  • Dry377 (65%)
  • Wet or damp185 (32%)
  • Snow11 (1.9%)
  • Frost or ice6 (1%)

Type of road

  • Dual carriageway430 (74%)
  • Single carriageway62 (11%)
  • Roundabout42 (7.3%)
  • One way street or slip road29 (5%)
  • Not recorded16 (2.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A40(M) crashes

Car occupants make up 68% of the people killed or injured on the A40(M), followed by motorcyclists (18%).

Casualties by road user

  • Car occupant505 (68%)
  • Motorcyclist134 (18%)
  • Van occupant44 (5.9%)
  • Pedestrian25 (3.4%)
  • Cyclist13 (1.7%)
  • Taxi or private hire car occupant9 (1.2%)
  • Goods vehicle occupant (over 3.5 tonnes)6 (0.8%)
  • Other7 (0.9%)

Vehicles involved

  • Car874 (76%)
  • Motorcycle131 (11%)
  • Van or goods vehicle up to 3.5 tonnes77 (6.7%)
  • Goods vehicle over 3.5 tonnes24 (2.1%)
  • Taxi or private hire car15 (1.3%)
  • Pedal cycle13 (1.1%)
  • Other vehicle12 (1%)
  • Bus or coach7 (0.6%)

Casualties by age

  • 0 to 512 (1.6%)
  • 6 to 1010 (1.3%)
  • 11 to 155 (0.7%)
  • 16 to 2053 (7.1%)
  • 21 to 25151 (20%)
  • 26 to 35236 (32%)
  • 36 to 45107 (14%)
  • 46 to 5570 (9.4%)
  • 56 to 6538 (5.1%)
  • 66 to 7518 (2.4%)
  • Over 753 (0.4%)
  • Not recorded40 (5.4%)

Drivers, passengers and pedestrians

  • Driver or rider516 (69%)
  • Passenger202 (27%)
  • Pedestrian25 (3.4%)

Source: Department for Transport, STATS19 road safety data

Map of the latest recorded crashes on the A40(M)

Map of the 25 latest recorded crashes on the A40(M)

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

  • 25 crashes
  • Serious
  • Slight

A40(M) crashes by council area

Collisions on the A40(M) were recorded in 6 council areas. Westminster has the most, with 377, followed by Hammersmith and Fulham (127) and Kensington and Chelsea (58).

Collisions on the A40(M) in each area, 1979 to 1999
RankAreaCollisionsCasualtiesFatalSerious
1stWestminster377486354
2ndHammersmith and Fulham127157311
3rdKensington and Chelsea587809
4thCarmarthenshire4703
5thCity of London4401
6thPembrokeshire3402

A40(M) crashes by town

Collisions on the A40(M) were recorded in 4 towns and built-up areas, led by City of Westminster (227) and Kensington and Chelsea (145).

Latest recorded crashes on the A40(M)

These are the 25 latest recorded collisions on the A40(M), from 28 June to 16 December 1999.

Severity