Road
Crashes on the A478
588 recorded collisions since 2000.
588
All crashes
11
Fatal
137
Serious
440
Slight
Since 2000 the A478 has seen 588 collisions, 11 of them fatal and 137 serious. That ranks it 810th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 18.7 per 1,000 collisions, and 25% caused death or serious injury. Collisions have fallen by about 49% since 2000, from 37 to 19 in 2024. The heaviest local concentrations are in Pembrokeshire, Carmarthenshire and Ceredigion.
Worst local authorities on the A478
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Crashes by year
2000–20246040200
200020052010201520202024
Figures cover collisions reported to police (STATS19) from 2000 onward. Source: DfT STATS19, Open Government Licence v3.0.