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CrashStats

B451 accidents: crash map and statistics

Police recorded 508 collisions on the B451 from 1979 to 2025, with 565 casualties. Of those crashes, none were fatal and 69 were serious.

In 2025 there were 4 collisions on the B451, down 50% from 8 in 2024, with 4 casualties.

Collisions since 1979
508
1,943rd highest of 4,923 roads
Casualties
565
1.11 per collision
Fatal collisions
0
No one killed
Serious collisions
69
73 seriously injured
Collisions in 2025
4
Down 50% on 2024
Casualties in 2025
4
Down 50% on 2024

Crash severity on the B451

None of the 508 collisions on the B451 were fatal, and 14% were serious (18% across Great Britain).

Collisions by severity, 1979 to 2025

  • Fatal00%
  • Serious6914%
  • Slight43986%

Where the B451 ranks among 4,923 roads

Most collisions
1,943rd
Most casualties
2,232nd
Most fatal collisions
4,444th
Most serious collisions
2,504th

B451 accidents by year

Collisions on the B451 peaked at 27 in 1989 and were down to 4 in 2025.

Collisions and casualties on the B451, 1979 to 2025

  • Collisions
  • Collisions in 2025: 4
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202544
202488
202388
202222
2021811
202044
201945
201867
201756
201655
201557
201478
201333
201255
201166
201033
200933
20081212
200766
200699
200555
200444
200388
20021111
2001914
20001926
19991111
199888
19971011
1996910
19951212
19941718
19932023
19921616
19911516
19902222
19892728
19882224
19871114
19862225
19852021
19842123
19831516
19822432
19811319
198099
19791517

When crashes happen on the B451

Thursday has the most collisions on the B451 (91), and 3pm to 6pm is the busiest time of day (120).

Collisions by day of the week

  • Monday71 (14%)
  • Tuesday76 (15%)
  • Wednesday59 (12%)
  • Thursday91 (18%)
  • Friday85 (17%)
  • Saturday60 (12%)
  • Sunday66 (13%)

Collisions by time of day

  • Midnight to 3am20 (3.9%)
  • 3am to 6am13 (2.6%)
  • 6am to 9am60 (12%)
  • 9am to noon74 (15%)
  • Noon to 3pm83 (16%)
  • 3pm to 6pm120 (24%)
  • 6pm to 9pm84 (17%)
  • 9pm to midnight54 (11%)

Collisions by month

  • January45 (8.9%)
  • February34 (6.7%)
  • March45 (8.9%)
  • April41 (8.1%)
  • May39 (7.7%)
  • June38 (7.5%)
  • July46 (9.1%)
  • August37 (7.3%)
  • September38 (7.5%)
  • October60 (12%)
  • November49 (9.6%)
  • December36 (7.1%)

Light conditions at the time

  • Daylight362 (71%)
  • Dark, street lights lit139 (27%)
  • Dark, lighting unknown5 (1%)
  • Dark, street lights unlit2 (0.4%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B451 crashes

On the B451, 95% of collisions happened where the speed limit was 30 mph and 74% on a dry road surface.

Speed limit at the scene

  • 20 mph24 (4.7%)
  • 30 mph483 (95%)
  • 50 mph1 (0.2%)

Weather at the time

  • Fine, no high winds385 (76%)
  • Raining, no high winds66 (13%)
  • Fine with high winds4 (0.8%)
  • Raining with high winds2 (0.4%)
  • Other45 (8.9%)
  • Not recorded6 (1.2%)

Road surface

  • Dry374 (74%)
  • Wet or damp121 (24%)
  • Frost or ice7 (1.4%)
  • Snow2 (0.4%)
  • Not recorded4 (0.8%)

Type of road

  • Single carriageway463 (91%)
  • Dual carriageway12 (2.4%)
  • One way street or slip road5 (1%)
  • Roundabout1 (0.2%)
  • Not recorded27 (5.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B451 crashes

Car occupants make up 34% of the people killed or injured on the B451, followed by pedestrians (26%).

Casualties by road user

  • Car occupant191 (34%)
  • Pedestrian148 (26%)
  • Motorcyclist116 (21%)
  • Cyclist88 (16%)
  • Taxi or private hire car occupant8 (1.4%)
  • Van occupant7 (1.2%)
  • Other6 (1.1%)
  • Not recorded1 (0.2%)

Vehicles involved

  • Car599 (68%)
  • Motorcycle120 (14%)
  • Pedal cycle90 (10%)
  • Van or goods vehicle up to 3.5 tonnes33 (3.7%)
  • Taxi or private hire car19 (2.2%)
  • Bus or coach7 (0.8%)
  • Other14 (1.6%)
  • Not recorded1 (0.1%)

Casualties by age

  • 0 to 522 (3.9%)
  • 6 to 1041 (7.3%)
  • 11 to 1523 (4.1%)
  • 16 to 2052 (9.2%)
  • 21 to 2591 (16%)
  • 26 to 35142 (25%)
  • 36 to 4579 (14%)
  • 46 to 5538 (6.7%)
  • 56 to 6522 (3.9%)
  • 66 to 7510 (1.8%)
  • Over 756 (1.1%)
  • Not recorded39 (6.9%)

Drivers, passengers and pedestrians

  • Driver or rider329 (58%)
  • Pedestrian148 (26%)
  • Passenger88 (16%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B451

Map of the 25 most recent crashes on the B451

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

  • 25 crashes
  • Serious
  • Slight

B451 crashes by council area

Collisions on the B451 were recorded in 2 council areas. Brent has the most, with 493, followed by Camden (14).

Collisions on the B451 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrent493549069
2ndCamden141400

B451 crashes by town

Of the 508 collisions on the B451, 466 were in the built-up area of Brent.

Recent crashes on the B451

These are the 25 most recent collisions on the B451, from 19 September 2021 to 22 October 2025.

Severity