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CrashStats

A4003 accidents: crash map and statistics

Police recorded 941 collisions on the A4003 from 1979 to 2025, with 1,099 casualties. Of those crashes, 6 were fatal and 141 serious, and 6 people were killed.

In 2025 there were 9 collisions on the A4003, down 40% from 15 in 2024, with 9 casualties.

Collisions since 1979
941
1,152nd highest of 4,923 roads
Casualties
1,099
1.17 per collision
Fatal collisions
6
6 people killed
Serious collisions
141
152 seriously injured
Collisions in 2025
9
Down 40% on 2024
Casualties in 2025
9
Down 44% on 2024

Crash severity on the A4003

On the A4003, 0.6% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal60.6%
  • Serious14115%
  • Slight79484%

Where the A4003 ranks among 4,923 roads

Most collisions
1,152nd
Most casualties
1,323rd
Most fatal collisions
2,299th
Most serious collisions
1,447th

A4003 accidents by year

Collisions on the A4003 peaked at 37 in 1983 and were down to 9 in 2025.

Collisions and casualties on the A4003, 1979 to 2025

  • Collisions
  • Collisions in 2025: 9
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
202599
20241516
20231316
202244
202178
202077
201958
20181313
20171617
20161921
20151112
20141315
201378
20122328
20111010
20101320
2009910
200889
20071212
20061216
20051416
20041617
20032122
20022731
20012433
20002229
19991923
19982829
19972426
19962326
19952023
19942327
19932730
19922629
19913241
19902735
19893541
19883036
19872528
19863134
19852535
19843237
19833745
19822730
19813138
19803438
19793541

When crashes happen on the A4003

Friday has the most collisions on the A4003 (152), and 3pm to 6pm is the busiest time of day (191).

Collisions by day of the week

  • Monday120 (13%)
  • Tuesday140 (15%)
  • Wednesday133 (14%)
  • Thursday135 (14%)
  • Friday152 (16%)
  • Saturday146 (16%)
  • Sunday115 (12%)

Collisions by time of day

  • Midnight to 3am60 (6.4%)
  • 3am to 6am30 (3.2%)
  • 6am to 9am107 (11%)
  • 9am to noon141 (15%)
  • Noon to 3pm155 (16%)
  • 3pm to 6pm191 (20%)
  • 6pm to 9pm161 (17%)
  • 9pm to midnight96 (10%)

Collisions by month

  • January76 (8.1%)
  • February91 (9.7%)
  • March66 (7%)
  • April68 (7.2%)
  • May73 (7.8%)
  • June74 (7.9%)
  • July83 (8.8%)
  • August78 (8.3%)
  • September84 (8.9%)
  • October83 (8.8%)
  • November80 (8.5%)
  • December85 (9%)

Light conditions at the time

  • Daylight637 (68%)
  • Dark, street lights lit294 (31%)
  • Dark, lighting unknown7 (0.7%)
  • Dark, street lights unlit2 (0.2%)
  • Dark, no street lighting1 (0.1%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4003 crashes

On the A4003, 97% of collisions happened where the speed limit was 30 mph and 71% on a dry road surface.

Speed limit at the scene

  • 20 mph27 (2.9%)
  • 30 mph913 (97%)
  • 40 mph1 (0.1%)

Weather at the time

  • Fine, no high winds668 (71%)
  • Raining, no high winds153 (16%)
  • Fog or mist4 (0.4%)
  • Fine with high winds3 (0.3%)
  • Other99 (11%)
  • Not recorded14 (1.5%)

Road surface

  • Dry665 (71%)
  • Wet or damp259 (28%)
  • Frost or ice8 (0.9%)
  • Snow2 (0.2%)
  • Flood over 3cm deep1 (0.1%)
  • Not recorded6 (0.6%)

Type of road

  • Single carriageway815 (87%)
  • Dual carriageway36 (3.8%)
  • One way street or slip road6 (0.6%)
  • Not recorded84 (8.9%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4003 crashes

Car occupants make up 41% of the people killed or injured on the A4003, followed by motorcyclists (20%).

Casualties by road user

  • Car occupant453 (41%)
  • Motorcyclist223 (20%)
  • Pedestrian196 (18%)
  • Cyclist108 (9.8%)
  • Bus or coach occupant86 (7.8%)
  • Van occupant16 (1.5%)
  • Other16 (1.5%)
  • Not recorded1 (0.1%)

Vehicles involved

  • Car1,058 (65%)
  • Motorcycle231 (14%)
  • Pedal cycle109 (6.7%)
  • Bus or coach98 (6%)
  • Van or goods vehicle up to 3.5 tonnes87 (5.3%)
  • Taxi or private hire car26 (1.6%)
  • Goods vehicle over 3.5 tonnes12 (0.7%)
  • Other9 (0.6%)

Casualties by age

  • 0 to 521 (1.9%)
  • 6 to 1027 (2.5%)
  • 11 to 1526 (2.4%)
  • 16 to 20107 (9.7%)
  • 21 to 25174 (16%)
  • 26 to 35299 (27%)
  • 36 to 45139 (13%)
  • 46 to 55106 (9.6%)
  • 56 to 6555 (5%)
  • 66 to 7537 (3.4%)
  • Over 7539 (3.5%)
  • Not recorded69 (6.3%)

Drivers, passengers and pedestrians

  • Driver or rider624 (57%)
  • Passenger279 (25%)
  • Pedestrian196 (18%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4003

Map of the 25 most recent crashes on the A4003

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

  • 25 crashes
  • Serious
  • Slight

A4003 crashes by council area

Collisions on the A4003 were recorded in 2 council areas. Brent has the most, with 919, followed by Camden (17).

Collisions on the A4003 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stBrent9191,0746139
2ndCamden171802

A4003 crashes by town

Of the 941 collisions on the A4003, 836 were in the built-up area of Brent.

Recent crashes on the A4003

These are the 25 most recent collisions on the A4003, from 31 October 2023 to 12 November 2025.

Severity