Skip to main content
CrashStats

B4557 accidents: crash map and statistics

Police recorded 318 collisions on the B4557 from 1993 to 2025, with 415 casualties. Of those crashes, 3 were fatal and 40 serious, and 3 people were killed.

In 2025 there were 7 collisions on the B4557, level with 2024, with 7 casualties.

Collisions since 1993
318
2,610th highest of 4,923 roads
Casualties
415
1.31 per collision
Fatal collisions
3
3 people killed
Serious collisions
40
46 seriously injured
Collisions in 2025
7
Level with 2024
Casualties in 2025
7
Down 36% on 2024

Crash severity on the B4557

On the B4557, 0.9% of collisions were fatal and 13% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1993 to 2025

  • Fatal30.9%
  • Serious4013%
  • Slight27586%

Where the B4557 ranks among 4,923 roads

Most collisions
2,610th
Most casualties
2,666th
Most fatal collisions
3,114th
Most serious collisions
3,266th

B4557 accidents by year

Collisions on the B4557 peaked at 21 in 1996 and were down to 7 in 2025.

Collisions and casualties on the B4557, 1993 to 2025

  • Collisions
  • Collisions in 2025: 7
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202577
2024711
2023912
2022912
2021911
2020610
201989
2018710
201755
201657
201557
20141117
20131217
20121212
201157
2010711
200959
20081010
200735
20061016
20051113
200466
20031318
2002911
20011521
20001419
19991218
19981821
19971724
19962124
19951619
19941212
199324

When crashes happen on the B4557

Monday has the most collisions on the B4557 (54), and 3pm to 6pm is the busiest time of day (66).

Collisions by day of the week

  • Monday54 (17%)
  • Tuesday54 (17%)
  • Wednesday48 (15%)
  • Thursday38 (12%)
  • Friday39 (12%)
  • Saturday49 (15%)
  • Sunday36 (11%)

Collisions by time of day

  • Midnight to 3am9 (2.8%)
  • 3am to 6am12 (3.8%)
  • 6am to 9am35 (11%)
  • 9am to noon56 (18%)
  • Noon to 3pm58 (18%)
  • 3pm to 6pm66 (21%)
  • 6pm to 9pm56 (18%)
  • 9pm to midnight26 (8.2%)

Collisions by month

  • January31 (9.7%)
  • February26 (8.2%)
  • March30 (9.4%)
  • April18 (5.7%)
  • May27 (8.5%)
  • June21 (6.6%)
  • July29 (9.1%)
  • August12 (3.8%)
  • September34 (11%)
  • October32 (10%)
  • November37 (12%)
  • December21 (6.6%)

Light conditions at the time

  • Daylight216 (68%)
  • Dark, street lights lit95 (30%)
  • Dark, lighting unknown4 (1.3%)
  • Dark, street lights unlit3 (0.9%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in B4557 crashes

On the B4557, 92% of collisions happened where the speed limit was 30 mph and 76% on a dry road surface.

Speed limit at the scene

  • 20 mph20 (6.3%)
  • 30 mph291 (92%)
  • 40 mph6 (1.9%)
  • 50 mph1 (0.3%)

Weather at the time

  • Fine, no high winds268 (84%)
  • Raining, no high winds28 (8.8%)
  • Raining with high winds4 (1.3%)
  • Fine with high winds3 (0.9%)
  • Other8 (2.5%)
  • Not recorded7 (2.2%)

Road surface

  • Dry241 (76%)
  • Wet or damp69 (22%)
  • Frost or ice5 (1.6%)
  • Oil or diesel1 (0.3%)
  • Not recorded2 (0.6%)

Type of road

  • Single carriageway216 (68%)
  • Roundabout43 (14%)
  • One way street or slip road37 (12%)
  • Dual carriageway13 (4.1%)
  • Not recorded9 (2.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in B4557 crashes

Car occupants make up 64% of the people killed or injured on the B4557, followed by pedestrians (13%).

Casualties by road user

  • Car occupant267 (64%)
  • Pedestrian54 (13%)
  • Motorcyclist45 (11%)
  • Van occupant16 (3.9%)
  • Bus or coach occupant15 (3.6%)
  • Cyclist12 (2.9%)
  • Goods vehicle occupant (over 3.5 tonnes)2 (0.5%)
  • Other4 (1%)

Vehicles involved

  • Car430 (74%)
  • Motorcycle49 (8.4%)
  • Van or goods vehicle up to 3.5 tonnes42 (7.2%)
  • Bus or coach22 (3.8%)
  • Goods vehicle over 3.5 tonnes18 (3.1%)
  • Pedal cycle12 (2.1%)
  • Taxi or private hire car4 (0.7%)
  • Other5 (0.9%)

Casualties by age

  • 0 to 56 (1.4%)
  • 6 to 107 (1.7%)
  • 11 to 1511 (2.7%)
  • 16 to 2034 (8.2%)
  • 21 to 2560 (14%)
  • 26 to 35126 (30%)
  • 36 to 4560 (14%)
  • 46 to 5545 (11%)
  • 56 to 6525 (6%)
  • 66 to 756 (1.4%)
  • Over 754 (1%)
  • Not recorded31 (7.5%)

Drivers, passengers and pedestrians

  • Driver or rider238 (57%)
  • Passenger123 (30%)
  • Pedestrian54 (13%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the B4557

Map of the 25 most recent crashes on the B4557

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

  • 25 crashes
  • Serious
  • Slight

B4557 crashes by council area

All 318 collisions on the B4557 were in Brent.

Collisions on the B4557 in each area, 1993 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrent318415340

B4557 crashes by town

Of the 318 collisions on the B4557, 318 were in the built-up area of Brent.

Recent crashes on the B4557

These are the 25 most recent collisions on the B4557, from 19 September 2022 to 26 November 2025.

Severity