Crashes on the A4008

488 recorded collisions since 2000.

Since 2000 the A4008 has seen 488 collisions, 5 of them fatal and 58 serious. That ranks it 977th of 6,754 numbered A, B and M roads by total recorded collisions. Its fatal rate is 10.2 per 1,000 collisions, and 13% caused death or serious injury. Collisions have fallen by about 67% since 2000, from 30 to 10 in 2024. The heaviest local concentrations are in Hertsmere, Watford and Three Rivers.

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