Road
Crashes on the B462
328 recorded collisions since 2000.
328
All crashes
4
Fatal
35
Serious
289
Slight
Since 2000 the B462 has seen 328 collisions, 4 of them fatal and 35 serious. That ranks it 1396th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 12.2 per 1,000 collisions, and 12% caused death or serious injury. Collisions have fallen by about 21% since 2000, from 14 to 11 in 2024. The heaviest local concentrations are in Hertsmere, Watford and Three Rivers.
Worst local authorities on the B462
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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.