Road
Crashes on the B4275
527 recorded collisions since 2000.
527
All crashes
8
Fatal
62
Serious
457
Slight
Since 2000 the B4275 has seen 527 collisions, 8 of them fatal and 62 serious. That ranks it 913th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 15.2 per 1,000 collisions, and 13% caused death or serious injury. Collisions have fallen by about 85% since 2000, from 27 to 4 in 2024. The heaviest local concentrations are in Rhondda Cynon Taf, Merthyr Tydfil and Swansea.
Worst local authorities on the B4275
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Crashes by year
2000–202440200
200020052010201520202024
Figures cover collisions reported to police (STATS19) from 2000 onward. Source: DfT STATS19, Open Government Licence v3.0.