Crashes on the A4055

521 recorded collisions since 2000.

Since 2000 the A4055 has seen 521 collisions, 4 of them fatal and 46 serious. That ranks it 924th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 7.7 per 1,000 collisions, and 10% caused death or serious injury. Collisions have risen by about 15% since 2000, from 13 to 15 in 2024. The heaviest local concentrations are in Vale of Glamorgan, Cardiff and West Oxfordshire.

Figures cover collisions reported to police (STATS19) from 2000 onward. Source: DfT STATS19, Open Government Licence v3.0.