The A11: where people are seriously hurt
Over 2021–2025, 361 people were killed or seriously injured in 333 collisions on the A11, making it the 21th worst numbered road in Britain by that measure.
333
serious or fatal collisions
361
people killed or seriously injured
17
collisions that took a life
#21
of 150 numbered roads
What the record shows
The A11 carries 1,617 recorded injury collisions over the period, 333 of them serious or fatal. Serious injury concentrates in Tower Hamlets, Newham, Breckland, with 3 further areas also recording collisions. Its fatal share, 5%, sits close to the 7% average for the numbered network. Most collisions were recorded on 20 mph sections. The worst year of the period was 2021 with 78 serious collisions, and the count is down 13% between 2021 and 2025.
Every serious and fatal collision on the A11
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
- Tower Hamlets142 KSI
- Newham59 KSI
- Breckland35 KSI
- West Suffolk22 KSI
- Waltham Forest17 KSI
- Redbridge17 KSI
Local authority areas with the most serious collisions on this road.
The trend
Serious and fatal collisions on the A11
2025: 68 (up 6.3% on the year before) · peak 78 in 2021 · -12.8% across the period
Axis clipped to the data range to show year-on-year movement.
About the A11
How many accidents happen on the A11?
Police recorded 1,617 injury collisions on the A11 over 2021–2025, of which 333 were fatal or serious. Those serious collisions left 361 people killed or seriously injured, including 17 fatal collisions.
Is the A11 a dangerous road?
By volume of serious injury it ranks 21 of the 150 numbered roads we analyse, and 18 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 A11 do collisions happen?
They concentrate in Tower Hamlets, Newham, Breckland. 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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