The A20: where people are seriously hurt
Over 2021–2025, 233 people were killed or seriously injured in 209 collisions on the A20, making it the 38th worst numbered road in Britain by that measure.
209
serious or fatal collisions
233
people killed or seriously injured
13
collisions that took a life
#38
of 150 numbered roads
What the record shows
The A20 carries 958 recorded injury collisions over the period, 209 of them serious or fatal. Serious injury concentrates in Lewisham, Maidstone, Sevenoaks, with 3 further areas also recording collisions. Its fatal share, 6%, sits close to the 7% average for the numbered network. Most collisions were recorded on 30 mph sections. The worst year of the period was 2024 with 46 serious collisions, and the count is down 16% between 2021 and 2025.
Every serious and fatal collision on the A20
Blue markers are serious collisions, red crosses fatal. Click any marker for the year. Zoom in to see the specific junctions and stretches where they cluster.
Where along the route
- Lewisham50 KSI
- Maidstone36 KSI
- Sevenoaks27 KSI
- Tonbridge and Malling25 KSI
- Ashford24 KSI
- Greenwich16 KSI
Local authority areas with the most serious collisions on this road.
The trend
Serious and fatal collisions on the A20
2025: 37 (down 19.6% on the year before) · peak 46 in 2024 · -15.9% across the period
Axis clipped to the data range to show year-on-year movement.
About the A20
How many accidents happen on the A20?
Police recorded 958 injury collisions on the A20 over 2021–2025, of which 209 were fatal or serious. Those serious collisions left 233 people killed or seriously injured, including 13 fatal collisions.
Is the A20 a dangerous road?
By volume of serious injury it ranks 38 of the 150 numbered roads we analyse, and 34 among a roads. That is a count rather than a rate: longer and busier roads accumulate more collisions, so a high ranking reflects exposure as well as risk.
Where on the A20 do collisions happen?
They concentrate in Lewisham, Maidstone, Sevenoaks. The map on this page plots every serious and fatal collision recorded on the route, so you can see the specific stretches rather than the total.
Counts include every collision the police recorded on this road number across all authority areas. They are not adjusted for traffic volume or road length, so treat them as a measure of where injury concentrates rather than a per-mile risk rating. Method. Free to reuse with attribution to this page.
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