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CrashStats

A4161 accidents: crash map and statistics

Police recorded 2,854 collisions on the A4161 from 1979 to 2025, with 3,768 casualties. Of those crashes, 29 were fatal and 364 serious, and 30 people were killed.

In 2025 there were 17 collisions on the A4161, up 70% from 10 in 2024, with 20 casualties.

Collisions since 1979
2,854
404th highest of 4,923 roads
Casualties
3,768
1.32 per collision
Fatal collisions
29
30 people killed
Serious collisions
364
401 seriously injured
Collisions in 2025
17
Up 70% on 2024
Casualties in 2025
20
Up 54% on 2024

Crash severity on the A4161

On the A4161, 1% of collisions were fatal and 13% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal291%
  • Serious36413%
  • Slight2,46186%

Where the A4161 ranks among 4,923 roads

Most collisions
404th
Most casualties
412th
Most fatal collisions
697th
Most serious collisions
596th

A4161 accidents by year

Collisions on the A4161 peaked at 148 in 1980 and were down to 17 in 2025.

Collisions and casualties on the A4161, 1979 to 2025

  • Collisions
  • Collisions in 2025: 17
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251720
20241013
20231723
20222428
20212121
20202528
20193445
20182838
20174859
20164046
20155068
20145275
20135175
20125676
20113985
20104266
20094863
200880115
200779134
200673104
200573100
200478110
200376118
200299144
200193125
20005786
19996890
19986995
19973543
19961921
19953451
19946172
19935466
19924760
19914976
19907183
19897286
1988130144
198781102
1986107137
19857587
198483117
19835157
19828095
1981124149
1980148173
19798699

When crashes happen on the A4161

Friday has the most collisions on the A4161 (500), and 3pm to 6pm is the busiest time of day (641).

Collisions by day of the week

  • Monday364 (13%)
  • Tuesday397 (14%)
  • Wednesday425 (15%)
  • Thursday425 (15%)
  • Friday500 (18%)
  • Saturday435 (15%)
  • Sunday308 (11%)

Collisions by time of day

  • Midnight to 3am213 (7.5%)
  • 3am to 6am57 (2%)
  • 6am to 9am261 (9.1%)
  • 9am to noon399 (14%)
  • Noon to 3pm541 (19%)
  • 3pm to 6pm641 (22%)
  • 6pm to 9pm413 (14%)
  • 9pm to midnight329 (12%)

Collisions by month

  • January240 (8.4%)
  • February226 (7.9%)
  • March240 (8.4%)
  • April225 (7.9%)
  • May208 (7.3%)
  • June180 (6.3%)
  • July222 (7.8%)
  • August234 (8.2%)
  • September231 (8.1%)
  • October287 (10%)
  • November287 (10%)
  • December274 (9.6%)

Light conditions at the time

  • Daylight1,865 (65%)
  • Dark, street lights lit902 (32%)
  • Dark, lighting unknown46 (1.6%)
  • Dark, street lights unlit27 (0.9%)
  • Dark, no street lighting8 (0.3%)
  • Not recorded6 (0.2%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4161 crashes

On the A4161, 95% of collisions happened where the speed limit was 30 mph and 64% on a dry road surface.

Speed limit at the scene

  • 20 mph25 (0.9%)
  • 30 mph2,698 (95%)
  • 40 mph70 (2.5%)
  • 50 mph8 (0.3%)
  • 60 mph11 (0.4%)
  • 70 mph42 (1.5%)

Weather at the time

  • Fine, no high winds2,128 (75%)
  • Raining, no high winds525 (18%)
  • Raining with high winds54 (1.9%)
  • Fine with high winds37 (1.3%)
  • Other57 (2%)
  • Not recorded53 (1.9%)

Road surface

  • Dry1,817 (64%)
  • Wet or damp1,005 (35%)
  • Frost or ice16 (0.6%)
  • Snow5 (0.2%)
  • Flood over 3cm deep2 (0.1%)
  • Not recorded9 (0.3%)

Type of road

  • Single carriageway1,430 (50%)
  • Dual carriageway1,226 (43%)
  • Roundabout133 (4.7%)
  • One way street or slip road28 (1%)
  • Not recorded37 (1.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4161 crashes

Car occupants make up 49% of the people killed or injured on the A4161, followed by pedestrians (21%).

Casualties by road user

  • Car occupant1,828 (49%)
  • Pedestrian790 (21%)
  • Cyclist339 (9%)
  • Motorcyclist323 (8.6%)
  • Bus or coach occupant296 (7.9%)
  • Taxi or private hire car occupant98 (2.6%)
  • Other89 (2.4%)
  • Not recorded5 (0.1%)

Vehicles involved

  • Car3,615 (71%)
  • Pedal cycle349 (6.8%)
  • Motorcycle346 (6.8%)
  • Bus or coach282 (5.5%)
  • Van or goods vehicle up to 3.5 tonnes182 (3.6%)
  • Taxi or private hire car164 (3.2%)
  • Other162 (3.2%)
  • Not recorded5 (0.1%)

Casualties by age

  • 0 to 554 (1.4%)
  • 6 to 1066 (1.8%)
  • 11 to 15145 (3.8%)
  • 16 to 20621 (16%)
  • 21 to 25637 (17%)
  • 26 to 35833 (22%)
  • 36 to 45540 (14%)
  • 46 to 55370 (9.8%)
  • 56 to 65227 (6%)
  • 66 to 75159 (4.2%)
  • Over 75111 (2.9%)
  • Not recorded5 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,890 (50%)
  • Passenger1,088 (29%)
  • Pedestrian790 (21%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4161

Map of the 25 most recent crashes on the A4161

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

  • 25 crashes
  • Serious
  • Slight

A4161 crashes by council area

Collisions on the A4161 were recorded in 2 council areas. Cardiff has the most, with 2,849, followed by Vale of Glamorgan (4).

Collisions on the A4161 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stCardiff2,8493,76129361
2ndVale of Glamorgan4603

A4161 crashes by town

Collisions on the A4161 were recorded in 2 towns and built-up areas, led by Cardiff (2,623) and Penarth (4).

Recent crashes on the A4161

These are the 25 most recent collisions on the A4161, from 15 March 2024 to 19 December 2025.

Severity