Skip to main content
CrashStats

A4054 accidents: crash map and statistics

Police recorded 1,720 collisions on the A4054 from 1979 to 2025, with 2,353 casualties. Of those crashes, 40 were fatal and 266 serious, and 41 people were killed.

In 2025 there were 8 collisions on the A4054, down 50% from 16 in 2024, with 10 casualties.

Collisions since 1979
1,720
667th highest of 4,923 roads
Casualties
2,353
1.37 per collision
Fatal collisions
40
41 people killed
Serious collisions
266
305 seriously injured
Collisions in 2025
8
Down 50% on 2024
Casualties in 2025
10
Down 58% on 2024

Crash severity on the A4054

On the A4054, 2.3% of collisions were fatal and 15% serious, against 1.6% and 18% across Great Britain.

Collisions by severity, 1979 to 2025

  • Fatal402.3%
  • Serious26615%
  • Slight1,41482%

Where the A4054 ranks among 4,923 roads

Most collisions
667th
Most casualties
654th
Most fatal collisions
527th
Most serious collisions
809th

A4054 accidents by year

Collisions on the A4054 peaked at 70 in 1989 and were down to 8 in 2025.

Collisions and casualties on the A4054, 1979 to 2025

  • Collisions
  • Collisions in 2025: 8
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
2025810
20241624
20231417
20221818
20211216
20201822
20193038
20182338
20172534
20162634
20154870
20143648
20133742
20123242
20113850
20103263
20093043
20082534
20073457
20063143
20052030
20044055
20034984
20024368
20014160
20002436
19993154
19982241
19973352
19962541
19952838
19944560
19932430
19925065
19915366
19905373
19897091
19884660
19875270
19867083
19856581
19846278
19836069
19824452
19815876
19803951
19794046

When crashes happen on the A4054

Friday has the most collisions on the A4054 (321), and 3pm to 6pm is the busiest time of day (429).

Collisions by day of the week

  • Monday254 (15%)
  • Tuesday233 (14%)
  • Wednesday279 (16%)
  • Thursday261 (15%)
  • Friday321 (19%)
  • Saturday215 (13%)
  • Sunday157 (9.1%)

Collisions by time of day

  • Midnight to 3am65 (3.8%)
  • 3am to 6am25 (1.5%)
  • 6am to 9am177 (10%)
  • 9am to noon243 (14%)
  • Noon to 3pm316 (18%)
  • 3pm to 6pm429 (25%)
  • 6pm to 9pm259 (15%)
  • 9pm to midnight206 (12%)

Collisions by month

  • January154 (9%)
  • February127 (7.4%)
  • March135 (7.8%)
  • April125 (7.3%)
  • May146 (8.5%)
  • June132 (7.7%)
  • July140 (8.1%)
  • August124 (7.2%)
  • September176 (10%)
  • October155 (9%)
  • November144 (8.4%)
  • December162 (9.4%)

Light conditions at the time

  • Daylight1,174 (68%)
  • Dark, street lights lit454 (26%)
  • Dark, street lights unlit38 (2.2%)
  • Dark, no street lighting28 (1.6%)
  • Dark, lighting unknown16 (0.9%)
  • Not recorded10 (0.6%)

Source: Department for Transport, STATS19 road safety data

Road and weather conditions in A4054 crashes

On the A4054, 81% of collisions happened where the speed limit was 30 mph and 65% on a dry road surface.

Speed limit at the scene

  • 20 mph34 (2%)
  • 30 mph1,399 (81%)
  • 40 mph194 (11%)
  • 50 mph2 (0.1%)
  • 60 mph87 (5.1%)
  • 70 mph4 (0.2%)

Weather at the time

  • Fine, no high winds1,327 (77%)
  • Raining, no high winds273 (16%)
  • Raining with high winds41 (2.4%)
  • Fine with high winds27 (1.6%)
  • Other29 (1.7%)
  • Not recorded23 (1.3%)

Road surface

  • Dry1,121 (65%)
  • Wet or damp548 (32%)
  • Frost or ice32 (1.9%)
  • Snow6 (0.3%)
  • Flood over 3cm deep2 (0.1%)
  • Not recorded11 (0.6%)

Type of road

  • Single carriageway1,396 (81%)
  • Dual carriageway162 (9.4%)
  • Roundabout135 (7.8%)
  • One way street or slip road22 (1.3%)
  • Not recorded5 (0.3%)

Source: Department for Transport, STATS19 road safety data

People hurt and vehicles involved in A4054 crashes

Car occupants make up 58% of the people killed or injured on the A4054, followed by pedestrians (17%).

Casualties by road user

  • Car occupant1,374 (58%)
  • Pedestrian393 (17%)
  • Motorcyclist223 (9.5%)
  • Cyclist171 (7.3%)
  • Bus or coach occupant78 (3.3%)
  • Van occupant54 (2.3%)
  • Other59 (2.5%)
  • Not recorded1 (under 0.1%)

Vehicles involved

  • Car2,243 (75%)
  • Motorcycle220 (7.3%)
  • Pedal cycle174 (5.8%)
  • Van or goods vehicle up to 3.5 tonnes128 (4.3%)
  • Bus or coach107 (3.6%)
  • Goods vehicle over 3.5 tonnes57 (1.9%)
  • Other72 (2.4%)
  • Not recorded3 (0.1%)

Casualties by age

  • 0 to 554 (2.3%)
  • 6 to 1088 (3.7%)
  • 11 to 15139 (5.9%)
  • 16 to 20463 (20%)
  • 21 to 25334 (14%)
  • 26 to 35376 (16%)
  • 36 to 45313 (13%)
  • 46 to 55247 (10%)
  • 56 to 65156 (6.6%)
  • 66 to 75109 (4.6%)
  • Over 7572 (3.1%)
  • Not recorded2 (0.1%)

Drivers, passengers and pedestrians

  • Driver or rider1,317 (56%)
  • Passenger643 (27%)
  • Pedestrian393 (17%)

Source: Department for Transport, STATS19 road safety data

Map of recent crashes on the A4054

Map of the 25 most recent crashes on the A4054

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

  • 25 crashes
  • Serious
  • Slight

A4054 crashes by council area

Collisions on the A4054 were recorded in 4 council areas. Rhondda Cynon Taf has the most, with 827, followed by Merthyr Tydfil (474) and Cardiff (414).

Collisions on the A4054 in each area, 1979 to 2025
RankAreaCollisionsCasualtiesFatalSerious
1stRhondda Cynon Taf8271,13221128
2ndMerthyr Tydfil4747091161
3rdCardiff414499877
4thBristol3400

A4054 crashes by town

Collisions on the A4054 were recorded in 8 towns and built-up areas, led by Pontypridd (414) and Cardiff (296).

Recent crashes on the A4054

These are the 25 most recent collisions on the A4054, from 8 December 2023 to 19 December 2025.

Severity