Skip to main content
CrashStats

B402 accidents: crash map and statistics

Police recorded 318 collisions on the B402 from 1979 to 2025, with 349 casualties. Of those crashes, 1 was fatal and 38 serious, and 1 person was killed.

In 2025 there were 5 collisions on the B402, down 29% from 7 in 2024, with 5 casualties.

Collisions since 1979
318
2,610th highest of 4,923 roads
Casualties
349
1.10 per collision
Fatal collisions
1
1 person killed
Serious collisions
38
40 seriously injured
Collisions in 2025
5
Down 29% on 2024
Casualties in 2025
5
Down 29% on 2024

Crash severity on the B402

On the B402, 0.3% of collisions were fatal and 12% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal10.3%
  • Serious3812%
  • Slight27988%

Where the B402 ranks among 4,923 roads

Most collisions
2,610th
Most casualties
2,915th
Most fatal collisions
3,933rd
Most serious collisions
3,345th

B402 accidents by year

Collisions on the B402 peaked at 16 in 1996 and were down to 5 in 2025.

Collisions and casualties on the B402, 1979 to 2025

  • Collisions
  • Collisions in 2025: 5
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202555
202477
202333
202277
202134
202022
201944
201866
20171111
201633
201556
201444
201333
201222
201133
201035
200912
200833
200733
200644
200578
200466
200344
200267
200178
200067
19991213
199888
199778
19961617
199589
19941314
19931212
199267
199155
19901014
19891314
198899
198788
19861518
1985910
19841010
198357
1982911
1981910
198089
197989

When crashes happen on the B402

Friday has the most collisions on the B402 (65), and 3pm to 6pm is the busiest time of day (72).

Collisions by day of the week

  • Monday39 (12%)
  • Tuesday45 (14%)
  • Wednesday57 (18%)
  • Thursday40 (13%)
  • Friday65 (20%)
  • Saturday47 (15%)
  • Sunday25 (7.9%)

Collisions by time of day

  • Midnight to 3am22 (6.9%)
  • 3am to 6am8 (2.5%)
  • 6am to 9am17 (5.3%)
  • 9am to noon46 (14%)
  • Noon to 3pm66 (21%)
  • 3pm to 6pm72 (23%)
  • 6pm to 9pm49 (15%)
  • 9pm to midnight38 (12%)

Collisions by month

  • January25 (7.9%)
  • February28 (8.8%)
  • March33 (10%)
  • April20 (6.3%)
  • May38 (12%)
  • June29 (9.1%)
  • July21 (6.6%)
  • August34 (11%)
  • September19 (6%)
  • October25 (7.9%)
  • November28 (8.8%)
  • December18 (5.7%)

Light conditions at the time

  • Daylight207 (65%)
  • Dark, street lights lit106 (33%)
  • Dark, lighting unknown2 (0.6%)
  • Dark, no street lighting2 (0.6%)
  • Dark, street lights unlit1 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B402 crashes

On the B402, 90% of collisions happened where the speed limit was 30 mph and 79% on a dry road surface.

Speed limit at the scene

  • 20 mph28 (8.8%)
  • 30 mph287 (90%)
  • 40 mph1 (0.3%)
  • 60 mph2 (0.6%)

Weather at the time

  • Fine, no high winds244 (77%)
  • Raining, no high winds38 (12%)
  • Fine with high winds4 (1.3%)
  • Fog or mist1 (0.3%)
  • Other25 (7.9%)
  • Not recorded6 (1.9%)

Road surface

  • Dry252 (79%)
  • Wet or damp62 (19%)
  • Frost or ice1 (0.3%)
  • Not recorded3 (0.9%)

Type of road

  • Single carriageway149 (47%)
  • One way street or slip road142 (45%)
  • Roundabout9 (2.8%)
  • Dual carriageway2 (0.6%)
  • Not recorded16 (5%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B402 crashes

Pedestrians make up 48% of the people killed or injured on the B402, followed by motorcyclists (17%).

Casualties by road user

  • Pedestrian167 (48%)
  • Motorcyclist59 (17%)
  • Cyclist58 (17%)
  • Car occupant39 (11%)
  • Taxi or private hire car occupant22 (6.3%)
  • Van occupant2 (0.6%)
  • Bus or coach occupant1 (0.3%)
  • Minibus occupant1 (0.3%)

Vehicles involved

  • Car194 (41%)
  • Motorcycle77 (16%)
  • Taxi or private hire car72 (15%)
  • Pedal cycle71 (15%)
  • Van or goods vehicle up to 3.5 tonnes39 (8.2%)
  • Goods vehicle over 3.5 tonnes13 (2.7%)
  • Bus or coach4 (0.8%)
  • Other6 (1.3%)

Casualties by age

  • 0 to 51 (0.3%)
  • 11 to 155 (1.4%)
  • 16 to 2030 (8.6%)
  • 21 to 2558 (17%)
  • 26 to 35109 (31%)
  • 36 to 4550 (14%)
  • 46 to 5531 (8.9%)
  • 56 to 6513 (3.7%)
  • 66 to 758 (2.3%)
  • Over 758 (2.3%)
  • Not recorded36 (10%)

Drivers, passengers and pedestrians

  • Pedestrian167 (48%)
  • Driver or rider151 (43%)
  • Passenger31 (8.9%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B402

Map of the 25 most recent crashes on the B402

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

  • 25 crashes
  • Serious
  • Slight

B402 crashes by council area

Collisions on the B402 were recorded in 3 council areas. Westminster has the most, with 237, followed by Camden (73) and Hertsmere (6).

Collisions on the B402 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWestminster237264030
2ndCamden737617
3rdHertsmere6701

B402 crashes by town

Collisions on the B402 were recorded in 2 towns and built-up areas, led by City of Westminster (161) and Camden (125).

Recent crashes on the B402

These are the 25 most recent collisions on the B402, from 4 April 2021 to 25 October 2025.

Severity