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CrashStats

A407 accidents: crash map and statistics

Police recorded 3,720 collisions on the A407 from 1979 to 2025, with 4,224 casualties. Of those crashes, 19 were fatal and 512 serious, and 19 people were killed.

In 2025 there were 53 collisions on the A407, down 12% from 60 in 2024, with 57 casualties.

Collisions since 1979
3,720
302nd highest of 4,923 roads
Casualties
4,224
1.14 per collision
Fatal collisions
19
19 people killed
Serious collisions
512
544 seriously injured
Collisions in 2025
53
Down 12% on 2024
Casualties in 2025
57
Down 12% on 2024

Crash severity on the A407

On the A407, 0.5% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal190.5%
  • Serious51214%
  • Slight3,18986%

Where the A407 ranks among 4,923 roads

Most collisions
302nd
Most casualties
362nd
Most fatal collisions
1,031st
Most serious collisions
421st

A407 accidents by year

Collisions on the A407 peaked at 128 in 1983 and were down to 53 in 2025.

Collisions and casualties on the A407, 1979 to 2025

  • Collisions
  • Collisions in 2025: 53
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20255357
20246065
20236164
20227883
20216165
20204954
20195053
20186471
20177281
20166691
20155968
20146075
20135767
20126371
20115359
20106679
20096268
20084851
20074953
20065158
20057377
20047083
20037787
20027788
20017791
2000105127
199980100
1998103111
19978699
199693111
199597113
1994104117
199398120
199291106
19918997
19907890
198997102
1988107119
19876469
198690105
1985112124
1984116135
1983128135
1982116126
198195113
1980101117
1979114129

When crashes happen on the A407

Friday has the most collisions on the A407 (618), and 3pm to 6pm is the busiest time of day (854).

Collisions by day of the week

  • Monday547 (15%)
  • Tuesday535 (14%)
  • Wednesday559 (15%)
  • Thursday511 (14%)
  • Friday618 (17%)
  • Saturday526 (14%)
  • Sunday424 (11%)

Collisions by time of day

  • Midnight to 3am162 (4.4%)
  • 3am to 6am55 (1.5%)
  • 6am to 9am354 (9.5%)
  • 9am to noon555 (15%)
  • Noon to 3pm628 (17%)
  • 3pm to 6pm854 (23%)
  • 6pm to 9pm673 (18%)
  • 9pm to midnight439 (12%)

Collisions by month

  • January300 (8.1%)
  • February262 (7%)
  • March310 (8.3%)
  • April293 (7.9%)
  • May326 (8.8%)
  • June307 (8.3%)
  • July293 (7.9%)
  • August296 (8%)
  • September334 (9%)
  • October361 (9.7%)
  • November338 (9.1%)
  • December300 (8.1%)

Light conditions at the time

  • Daylight2,528 (68%)
  • Dark, street lights lit1,148 (31%)
  • Dark, lighting unknown27 (0.7%)
  • Dark, street lights unlit14 (0.4%)
  • Dark, no street lighting3 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A407 crashes

On the A407, 95% of collisions happened where the speed limit was 30 mph and 76% on a dry road surface.

Speed limit at the scene

  • 20 mph131 (3.5%)
  • 30 mph3,543 (95%)
  • 40 mph37 (1%)
  • 50 mph8 (0.2%)
  • 60 mph1 (under 0.1%)

Weather at the time

  • Fine, no high winds2,768 (74%)
  • Raining, no high winds462 (12%)
  • Fine with high winds24 (0.6%)
  • Raining with high winds22 (0.6%)
  • Other373 (10%)
  • Not recorded71 (1.9%)

Road surface

  • Dry2,809 (76%)
  • Wet or damp837 (23%)
  • Frost or ice21 (0.6%)
  • Snow11 (0.3%)
  • Flood over 3cm deep2 (0.1%)
  • Not recorded40 (1.1%)

Type of road

  • Single carriageway2,900 (78%)
  • Dual carriageway451 (12%)
  • One way street or slip road62 (1.7%)
  • Roundabout42 (1.1%)
  • Not recorded265 (7.1%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A407 crashes

Car occupants make up 32% of the people killed or injured on the A407, followed by pedestrians (32%).

Casualties by road user

  • Car occupant1,368 (32%)
  • Pedestrian1,353 (32%)
  • Motorcyclist668 (16%)
  • Cyclist342 (8.1%)
  • Bus or coach occupant340 (8%)
  • Van occupant89 (2.1%)
  • Other60 (1.4%)
  • Not recorded4 (0.1%)

Vehicles involved

  • Car3,903 (66%)
  • Motorcycle755 (13%)
  • Bus or coach450 (7.6%)
  • Pedal cycle349 (5.9%)
  • Van or goods vehicle up to 3.5 tonnes325 (5.5%)
  • Taxi or private hire car57 (1%)
  • Goods vehicle over 3.5 tonnes53 (0.9%)
  • Other56 (0.9%)

Casualties by age

  • 0 to 594 (2.2%)
  • 6 to 10192 (4.5%)
  • 11 to 15211 (5%)
  • 16 to 20396 (9.4%)
  • 21 to 25585 (14%)
  • 26 to 35941 (22%)
  • 36 to 45618 (15%)
  • 46 to 55386 (9.1%)
  • 56 to 65251 (5.9%)
  • 66 to 75169 (4%)
  • Over 75111 (2.6%)
  • Not recorded270 (6.4%)

Drivers, passengers and pedestrians

  • Driver or rider1,971 (47%)
  • Pedestrian1,353 (32%)
  • Passenger900 (21%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A407

Map of the 25 most recent crashes on the A407

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

  • 25 crashes
  • Serious
  • Slight

A407 crashes by council area

Collisions on the A407 were recorded in 2 council areas. Brent has the most, with 3,000, followed by Barnet (713).

Collisions on the A407 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrent3,0003,40515394
2ndBarnet7138104116

A407 crashes by town

Collisions on the A407 were recorded in 2 towns and built-up areas, led by Brent (2,703) and Barnet (687).

Recent crashes on the A407

These are the 25 most recent collisions on the A407, from 28 June to 31 December 2025.

Severity