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CrashStats

B450 accidents: crash map and statistics

Police recorded 2,389 collisions on the B450 from 1979 to 2025, with 2,687 casualties. Of those crashes, 5 were fatal and 328 serious, and 5 people were killed.

In 2025 there were 35 collisions on the B450, down 20% from 44 in 2024, with 36 casualties.

Collisions since 1979
2,389
487th highest of 4,923 roads
Casualties
2,687
1.12 per collision
Fatal collisions
5
5 people killed
Serious collisions
328
340 seriously injured
Collisions in 2025
35
Down 20% on 2024
Casualties in 2025
36
Down 23% on 2024

Crash severity on the B450

On the B450, 0.2% of collisions were fatal and 14% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal50.2%
  • Serious32814%
  • Slight2,05686%

Where the B450 ranks among 4,923 roads

Most collisions
487th
Most casualties
591st
Most fatal collisions
2,545th
Most serious collisions
652nd

B450 accidents by year

Collisions on the B450 peaked at 76 in 1992 and were down to 35 in 2025.

Collisions and casualties on the B450, 1979 to 2025

  • Collisions
  • Collisions in 2025: 35
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253536
20244447
20235053
20223336
20214649
20203036
20194345
20184144
20175769
20163851
20154956
20144151
20134957
20124444
20114042
20105154
20093236
20083638
20073743
20064041
20055569
20044955
20035153
20025258
20016369
20005768
19996974
19985354
19975556
19964952
19955564
19946879
19936682
19927681
19916576
19905764
19896267
19884652
19874653
19864754
19856176
19844851
19835868
19826877
19816877
19803944
19797086

When crashes happen on the B450

Friday has the most collisions on the B450 (433), and 3pm to 6pm is the busiest time of day (496).

Collisions by day of the week

  • Monday335 (14%)
  • Tuesday359 (15%)
  • Wednesday335 (14%)
  • Thursday350 (15%)
  • Friday433 (18%)
  • Saturday331 (14%)
  • Sunday246 (10%)

Collisions by time of day

  • Midnight to 3am122 (5.1%)
  • 3am to 6am44 (1.8%)
  • 6am to 9am231 (9.7%)
  • 9am to noon347 (15%)
  • Noon to 3pm416 (17%)
  • 3pm to 6pm496 (21%)
  • 6pm to 9pm447 (19%)
  • 9pm to midnight286 (12%)

Collisions by month

  • January200 (8.4%)
  • February179 (7.5%)
  • March189 (7.9%)
  • April192 (8%)
  • May231 (9.7%)
  • June192 (8%)
  • July218 (9.1%)
  • August204 (8.5%)
  • September201 (8.4%)
  • October214 (9%)
  • November190 (8%)
  • December179 (7.5%)

Light conditions at the time

  • Daylight1,590 (67%)
  • Dark, street lights lit769 (32%)
  • Dark, lighting unknown22 (0.9%)
  • Dark, street lights unlit6 (0.3%)
  • Dark, no street lighting2 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B450 crashes

On the B450, 93% of collisions happened where the speed limit was 30 mph and 79% on a dry road surface.

Speed limit at the scene

  • 20 mph158 (6.6%)
  • 30 mph2,223 (93%)
  • 40 mph5 (0.2%)
  • 50 mph3 (0.1%)

Weather at the time

  • Fine, no high winds1,862 (78%)
  • Raining, no high winds277 (12%)
  • Fine with high winds25 (1%)
  • Raining with high winds10 (0.4%)
  • Other180 (7.5%)
  • Not recorded35 (1.5%)

Road surface

  • Dry1,893 (79%)
  • Wet or damp454 (19%)
  • Frost or ice8 (0.3%)
  • Snow6 (0.3%)
  • Not recorded28 (1.2%)

Type of road

  • Single carriageway2,053 (86%)
  • Roundabout84 (3.5%)
  • Dual carriageway82 (3.4%)
  • One way street or slip road16 (0.7%)
  • Not recorded154 (6.4%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B450 crashes

Motorcyclists make up 25% of the people killed or injured on the B450, followed by pedestrians (23%).

Casualties by road user

  • Motorcyclist661 (25%)
  • Pedestrian628 (23%)
  • Car occupant624 (23%)
  • Cyclist464 (17%)
  • Bus or coach occupant180 (6.7%)
  • Taxi or private hire car occupant56 (2.1%)
  • Other69 (2.6%)
  • Not recorded5 (0.2%)

Vehicles involved

  • Car2,229 (55%)
  • Motorcycle740 (18%)
  • Pedal cycle480 (12%)
  • Bus or coach221 (5.4%)
  • Van or goods vehicle up to 3.5 tonnes208 (5.1%)
  • Taxi or private hire car129 (3.2%)
  • Goods vehicle over 3.5 tonnes31 (0.8%)
  • Other49 (1.2%)

Casualties by age

  • 0 to 530 (1.1%)
  • 6 to 1054 (2%)
  • 11 to 15108 (4%)
  • 16 to 20250 (9.3%)
  • 21 to 25453 (17%)
  • 26 to 35721 (27%)
  • 36 to 45393 (15%)
  • 46 to 55259 (9.6%)
  • 56 to 65121 (4.5%)
  • 66 to 7584 (3.1%)
  • Over 7543 (1.6%)
  • Not recorded171 (6.4%)

Drivers, passengers and pedestrians

  • Driver or rider1,600 (60%)
  • Pedestrian628 (23%)
  • Passenger459 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B450

Map of the 25 most recent crashes on the B450

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

  • 25 crashes
  • Serious
  • Slight

B450 crashes by council area

Collisions on the B450 were recorded in 3 council areas. Kensington and Chelsea has the most, with 2,062, followed by Westminster (187) and Brent (136).

Collisions on the B450 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stKensington and Chelsea2,0622,3225281
2ndWestminster187206026
3rdBrent136151021

B450 crashes by town

Collisions on the B450 were recorded in 3 towns and built-up areas, led by Kensington and Chelsea (1,873) and Brent (266).

Recent crashes on the B450

These are the 25 most recent collisions on the B450, from 16 March to 11 December 2025.

Severity