Skip to main content
CrashStats

B411 accidents: crash map and statistics

Police recorded 605 collisions on the B411 from 1979 to 2025, with 664 casualties. Of those crashes, 3 were fatal and 77 serious, and 3 people were killed.

In 2025 there were 12 collisions on the B411, up 50% from 8 in 2024, with 13 casualties.

Collisions since 1979
605
1,680th highest of 4,923 roads
Casualties
664
1.10 per collision
Fatal collisions
3
3 people killed
Serious collisions
77
80 seriously injured
Collisions in 2025
12
Up 50% on 2024
Casualties in 2025
13
Up 63% on 2024

Crash severity on the B411

On the B411, 0.5% of collisions were fatal and 13% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal30.5%
  • Serious7713%
  • Slight52587%

Where the B411 ranks among 4,923 roads

Most collisions
1,680th
Most casualties
1,997th
Most fatal collisions
3,114th
Most serious collisions
2,343rd

B411 accidents by year

Collisions on the B411 peaked at 22 in 1996 and were down to 12 in 2025.

Collisions and casualties on the B411, 1979 to 2025

  • Collisions
  • Collisions in 2025: 12
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251213
202488
202399
202277
20211010
202044
201978
20181415
20171013
20162121
20151113
20141212
20131115
201255
201177
201079
200968
200868
200766
20061415
20051010
20041920
20031717
2002811
20012123
20001315
19992124
19981819
19971721
19962225
19951717
19941012
19931414
19921212
19911515
19901111
19891919
198888
19871213
19861113
19851617
19842126
19831114
19821418
19812121
19801919
19792124

When crashes happen on the B411

Thursday has the most collisions on the B411 (98), and 3pm to 6pm is the busiest time of day (140).

Collisions by day of the week

  • Monday94 (16%)
  • Tuesday86 (14%)
  • Wednesday85 (14%)
  • Thursday98 (16%)
  • Friday89 (15%)
  • Saturday92 (15%)
  • Sunday61 (10%)

Collisions by time of day

  • Midnight to 3am42 (6.9%)
  • 3am to 6am13 (2.1%)
  • 6am to 9am36 (6%)
  • 9am to noon87 (14%)
  • Noon to 3pm96 (16%)
  • 3pm to 6pm140 (23%)
  • 6pm to 9pm115 (19%)
  • 9pm to midnight76 (13%)

Collisions by month

  • January47 (7.8%)
  • February49 (8.1%)
  • March39 (6.4%)
  • April52 (8.6%)
  • May52 (8.6%)
  • June45 (7.4%)
  • July67 (11%)
  • August64 (11%)
  • September42 (6.9%)
  • October58 (9.6%)
  • November52 (8.6%)
  • December38 (6.3%)

Light conditions at the time

  • Daylight389 (64%)
  • Dark, street lights lit203 (34%)
  • Dark, lighting unknown8 (1.3%)
  • Dark, street lights unlit4 (0.7%)
  • Dark, no street lighting1 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B411 crashes

On the B411, 92% of collisions happened where the speed limit was 30 mph and 78% on a dry road surface.

Speed limit at the scene

  • 20 mph46 (7.6%)
  • 30 mph555 (92%)
  • 40 mph1 (0.2%)
  • 60 mph3 (0.5%)

Weather at the time

  • Fine, no high winds448 (74%)
  • Raining, no high winds75 (12%)
  • Fine with high winds4 (0.7%)
  • Raining with high winds4 (0.7%)
  • Other65 (11%)
  • Not recorded9 (1.5%)

Road surface

  • Dry472 (78%)
  • Wet or damp125 (21%)
  • Frost or ice2 (0.3%)
  • Flood over 3cm deep1 (0.2%)
  • Snow1 (0.2%)
  • Not recorded4 (0.7%)

Type of road

  • Single carriageway400 (66%)
  • One way street or slip road142 (23%)
  • Dual carriageway14 (2.3%)
  • Roundabout11 (1.8%)
  • Not recorded38 (6.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B411 crashes

Pedestrians make up 38% of the people killed or injured on the B411, followed by car occupants (18%).

Casualties by road user

  • Pedestrian255 (38%)
  • Car occupant122 (18%)
  • Motorcyclist107 (16%)
  • Cyclist106 (16%)
  • Bus or coach occupant40 (6%)
  • Taxi or private hire car occupant22 (3.3%)
  • Other10 (1.5%)
  • Not recorded2 (0.3%)

Vehicles involved

  • Car519 (54%)
  • Motorcycle129 (13%)
  • Pedal cycle110 (11%)
  • Taxi or private hire car69 (7.2%)
  • Van or goods vehicle up to 3.5 tonnes57 (5.9%)
  • Bus or coach50 (5.2%)
  • Other vehicle10 (1%)
  • Other16 (1.7%)

Casualties by age

  • 0 to 512 (1.8%)
  • 6 to 1014 (2.1%)
  • 11 to 1512 (1.8%)
  • 16 to 2051 (7.7%)
  • 21 to 2599 (15%)
  • 26 to 35190 (29%)
  • 36 to 4591 (14%)
  • 46 to 5556 (8.4%)
  • 56 to 6560 (9%)
  • 66 to 7519 (2.9%)
  • Over 7522 (3.3%)
  • Not recorded38 (5.7%)

Drivers, passengers and pedestrians

  • Driver or rider311 (47%)
  • Pedestrian255 (38%)
  • Passenger98 (15%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B411

Map of the 25 most recent crashes on the B411

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

  • 25 crashes
  • Serious
  • Slight

B411 crashes by council area

Of the 605 collisions on the B411, 598 were in Westminster.

Collisions on the B411 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWestminster598656376

B411 crashes by town

Of the 605 collisions on the B411, 537 were in the built-up area of City of Westminster.

Recent crashes on the B411

These are the 25 most recent collisions on the B411, from 14 September 2023 to 13 November 2025.

Severity