Road
Crashes on the A412
2,169 recorded collisions since 2000.
2,169
All crashes
29
Fatal
310
Serious
1,830
Slight
Since 2000 the A412 has seen 2,169 collisions, 29 of them fatal and 310 serious. That ranks it 197th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 13.4 per 1,000 collisions, and 16% caused death or serious injury. Collisions have fallen by about 66% since 2000, from 146 to 50 in 2024. The heaviest local concentrations are in Watford, Three Rivers and Buckinghamshire.
Worst local authorities on the A412
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Crashes by year
2000–2024200150100500
200020052010201520202024
Figures cover collisions reported to police (STATS19) from 2000 onward. Source: DfT STATS19, Open Government Licence v3.0.