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CrashStats

A4202 accidents: crash map and statistics

Police recorded 2,184 collisions on the A4202 from 1979 to 2025, with 2,600 casualties. Of those crashes, 13 were fatal and 259 serious, and 13 people were killed.

In 2025 there were 20 collisions on the A4202, up 18% from 17 in 2024, with 24 casualties.

Collisions since 1979
2,184
536th highest of 4,923 roads
Casualties
2,600
1.19 per collision
Fatal collisions
13
13 people killed
Serious collisions
259
280 seriously injured
Collisions in 2025
20
Up 18% on 2024
Casualties in 2025
24
Level with 2024

Crash severity on the A4202

On the A4202, 0.6% of collisions were fatal and 12% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal130.6%
  • Serious25912%
  • Slight1,91288%

Where the A4202 ranks among 4,923 roads

Most collisions
536th
Most casualties
601st
Most fatal collisions
1,413th
Most serious collisions
828th

A4202 accidents by year

Collisions on the A4202 peaked at 90 in 1990 and were down to 20 in 2025.

Collisions and casualties on the A4202, 1979 to 2025

  • Collisions
  • Collisions in 2025: 20
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20252024
20241724
20233135
20223241
20212633
20202023
20193540
20183543
20175361
20165061
20153442
20144855
20134143
20123546
20113846
20102930
20093851
20083951
20073040
20062834
20053437
20043743
20034759
20025069
20013953
20005160
19994762
19985872
19975362
19964352
19953334
19945869
19934965
19925869
19914247
199090100
19894451
19885867
19876376
19866170
19857784
19847482
19836272
19828188
19816167
19805258
197983109

When crashes happen on the A4202

Friday has the most collisions on the A4202 (367), and 3pm to 6pm is the busiest time of day (461).

Collisions by day of the week

  • Monday337 (15%)
  • Tuesday329 (15%)
  • Wednesday309 (14%)
  • Thursday341 (16%)
  • Friday367 (17%)
  • Saturday276 (13%)
  • Sunday225 (10%)

Collisions by time of day

  • Midnight to 3am127 (5.8%)
  • 3am to 6am64 (2.9%)
  • 6am to 9am205 (9.4%)
  • 9am to noon319 (15%)
  • Noon to 3pm383 (18%)
  • 3pm to 6pm461 (21%)
  • 6pm to 9pm385 (18%)
  • 9pm to midnight240 (11%)

Collisions by month

  • January151 (6.9%)
  • February155 (7.1%)
  • March171 (7.8%)
  • April157 (7.2%)
  • May186 (8.5%)
  • June219 (10%)
  • July235 (11%)
  • August181 (8.3%)
  • September195 (8.9%)
  • October192 (8.8%)
  • November176 (8.1%)
  • December166 (7.6%)

Light conditions at the time

  • Daylight1,470 (67%)
  • Dark, street lights lit701 (32%)
  • Dark, lighting unknown7 (0.3%)
  • Dark, street lights unlit6 (0.3%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4202 crashes

On the A4202, 71% of collisions happened where the speed limit was 30 mph and 79% on a dry road surface.

Speed limit at the scene

  • 10 mph1 (under 0.1%)
  • 20 mph103 (4.7%)
  • 30 mph1,560 (71%)
  • 40 mph510 (23%)
  • 50 mph7 (0.3%)
  • 60 mph1 (under 0.1%)
  • 70 mph2 (0.1%)

Weather at the time

  • Fine, no high winds1,673 (77%)
  • Raining, no high winds272 (12%)
  • Fine with high winds18 (0.8%)
  • Raining with high winds17 (0.8%)
  • Other180 (8.2%)
  • Not recorded24 (1.1%)

Road surface

  • Dry1,723 (79%)
  • Wet or damp439 (20%)
  • Frost or ice9 (0.4%)
  • Snow2 (0.1%)
  • Not recorded11 (0.5%)

Type of road

  • Dual carriageway1,193 (55%)
  • One way street or slip road499 (23%)
  • Single carriageway370 (17%)
  • Roundabout78 (3.6%)
  • Not recorded44 (2%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4202 crashes

Car occupants make up 32% of the people killed or injured on the A4202, followed by motorcyclists (21%).

Casualties by road user

  • Car occupant824 (32%)
  • Motorcyclist533 (21%)
  • Cyclist352 (14%)
  • Pedestrian305 (12%)
  • Bus or coach occupant271 (10%)
  • Taxi or private hire car occupant235 (9%)
  • Other79 (3%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car1,975 (49%)
  • Motorcycle552 (14%)
  • Taxi or private hire car436 (11%)
  • Pedal cycle366 (9.1%)
  • Bus or coach365 (9.1%)
  • Van or goods vehicle up to 3.5 tonnes205 (5.1%)
  • Goods vehicle over 3.5 tonnes69 (1.7%)
  • Other36 (0.9%)

Casualties by age

  • 0 to 526 (1%)
  • 6 to 1022 (0.8%)
  • 11 to 1532 (1.2%)
  • 16 to 20179 (6.9%)
  • 21 to 25397 (15%)
  • 26 to 35704 (27%)
  • 36 to 45467 (18%)
  • 46 to 55268 (10%)
  • 56 to 65158 (6.1%)
  • 66 to 7576 (2.9%)
  • Over 7541 (1.6%)
  • Not recorded230 (8.8%)

Drivers, passengers and pedestrians

  • Driver or rider1,511 (58%)
  • Passenger784 (30%)
  • Pedestrian305 (12%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4202

Map of the 25 most recent crashes on the A4202

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

  • 25 crashes
  • Fatal
  • Serious
  • Slight

A4202 crashes by council area

Of the 2,184 collisions on the A4202, 2,176 were in Westminster.

Collisions on the A4202 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stWestminster2,1762,58613258

A4202 crashes by town

Of the 2,184 collisions on the A4202, 997 were in the built-up area of City of Westminster.

Recent crashes on the A4202

These are the 25 most recent collisions on the A4202, from 27 October 2024 to 13 December 2025.

Severity