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CrashStats

A4089 accidents: crash map and statistics

Police recorded 1,752 collisions on the A4089 from 1979 to 2025, with 2,025 casualties. Of those crashes, 11 were fatal and 226 serious, and 12 people were killed.

In 2025 there were 33 collisions on the A4089, up 18% from 28 in 2024, with 34 casualties.

Collisions since 1979
1,752
657th highest of 4,923 roads
Casualties
2,025
1.16 per collision
Fatal collisions
11
12 people killed
Serious collisions
226
242 seriously injured
Collisions in 2025
33
Up 18% on 2024
Casualties in 2025
34
Up 3% on 2024

Crash severity on the A4089

On the A4089, 0.6% of collisions were fatal and 13% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal110.6%
  • Serious22613%
  • Slight1,51586%

Where the A4089 ranks among 4,923 roads

Most collisions
657th
Most casualties
740th
Most fatal collisions
1,595th
Most serious collisions
945th

A4089 accidents by year

Collisions on the A4089 peaked at 60 in 1985 and were down to 33 in 2025.

Collisions and casualties on the A4089, 1979 to 2025

  • Collisions
  • Collisions in 2025: 33
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20253334
20242833
20233540
20224043
20213335
20202428
20192832
20183033
20173031
20163945
20154452
20143333
20133442
20122931
20112526
20102935
20092427
20082222
20072028
20062328
20052629
20043333
20033438
20023540
20014158
20004864
19994750
19983438
19974154
19962633
19954855
19944147
19933848
19924057
19913138
19904758
19894652
19885865
19873944
19863542
19856067
19843941
19835560
19824655
19814955
19805459
19795867

When crashes happen on the A4089

Friday has the most collisions on the A4089 (276), and 3pm to 6pm is the busiest time of day (401).

Collisions by day of the week

  • Monday247 (14%)
  • Tuesday240 (14%)
  • Wednesday256 (15%)
  • Thursday274 (16%)
  • Friday276 (16%)
  • Saturday256 (15%)
  • Sunday203 (12%)

Collisions by time of day

  • Midnight to 3am47 (2.7%)
  • 3am to 6am28 (1.6%)
  • 6am to 9am200 (11%)
  • 9am to noon245 (14%)
  • Noon to 3pm358 (20%)
  • 3pm to 6pm401 (23%)
  • 6pm to 9pm310 (18%)
  • 9pm to midnight163 (9.3%)

Collisions by month

  • January130 (7.4%)
  • February130 (7.4%)
  • March135 (7.7%)
  • April135 (7.7%)
  • May154 (8.8%)
  • June150 (8.6%)
  • July167 (9.5%)
  • August141 (8%)
  • September167 (9.5%)
  • October149 (8.5%)
  • November142 (8.1%)
  • December152 (8.7%)

Light conditions at the time

  • Daylight1,264 (72%)
  • Dark, street lights lit469 (27%)
  • Dark, lighting unknown12 (0.7%)
  • Dark, street lights unlit5 (0.3%)
  • Dark, no street lighting2 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4089 crashes

On the A4089, 96% of collisions happened where the speed limit was 30 mph and 77% on a dry road surface.

Speed limit at the scene

  • 20 mph69 (3.9%)
  • 30 mph1,680 (96%)
  • 40 mph3 (0.2%)

Weather at the time

  • Fine, no high winds1,305 (74%)
  • Raining, no high winds221 (13%)
  • Fine with high winds13 (0.7%)
  • Raining with high winds4 (0.2%)
  • Other170 (9.7%)
  • Not recorded39 (2.2%)

Road surface

  • Dry1,349 (77%)
  • Wet or damp363 (21%)
  • Frost or ice18 (1%)
  • Snow6 (0.3%)
  • Not recorded16 (0.9%)

Type of road

  • Single carriageway1,472 (84%)
  • Dual carriageway70 (4%)
  • One way street or slip road39 (2.2%)
  • Roundabout17 (1%)
  • Not recorded154 (8.8%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4089 crashes

Car occupants make up 35% of the people killed or injured on the A4089, followed by pedestrians (34%).

Casualties by road user

  • Car occupant710 (35%)
  • Pedestrian692 (34%)
  • Motorcyclist261 (13%)
  • Bus or coach occupant184 (9.1%)
  • Cyclist136 (6.7%)
  • Van occupant21 (1%)
  • Other18 (0.9%)
  • Not recorded3 (0.1%)

Vehicles involved

  • Car1,914 (69%)
  • Motorcycle291 (11%)
  • Bus or coach212 (7.7%)
  • Pedal cycle144 (5.2%)
  • Van or goods vehicle up to 3.5 tonnes111 (4%)
  • Goods vehicle over 3.5 tonnes34 (1.2%)
  • Taxi or private hire car30 (1.1%)
  • Other22 (0.8%)

Casualties by age

  • 0 to 541 (2%)
  • 6 to 1065 (3.2%)
  • 11 to 15104 (5.1%)
  • 16 to 20216 (11%)
  • 21 to 25281 (14%)
  • 26 to 35421 (21%)
  • 36 to 45289 (14%)
  • 46 to 55193 (9.5%)
  • 56 to 65131 (6.5%)
  • 66 to 7586 (4.2%)
  • Over 7564 (3.2%)
  • Not recorded134 (6.6%)

Drivers, passengers and pedestrians

  • Driver or rider898 (44%)
  • Pedestrian692 (34%)
  • Passenger435 (21%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4089

Map of the 25 most recent crashes on the A4089

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

  • 25 crashes
  • Serious
  • Slight

A4089 crashes by council area

All 1,752 collisions on the A4089 were in Brent.

Collisions on the A4089 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrent1,7522,02511226

A4089 crashes by town

Of the 1,752 collisions on the A4089, 1,585 were in the built-up area of Brent.

Recent crashes on the A4089

These are the 25 most recent collisions on the A4089, from 28 April to 20 December 2025.

Severity