The A259: where people are seriously hurt
Over 2021–2025, 595 people were killed or seriously injured in 555 collisions on the A259, making it the 4th worst numbered road in Britain by that measure.
555
serious or fatal collisions
595
people killed or seriously injured
18
collisions that took a life
#4
of 150 numbered roads
What the record shows
The A259 carries 1,871 recorded injury collisions over the period, 555 of them serious or fatal. Serious injury concentrates in Brighton and Hove, Arun, Lewes, with 3 further areas also recording collisions. Collisions here are less likely than average to be fatal (3% against 7%), typical of lower-speed urban sections. Most collisions were recorded on 30 mph sections. The worst year of the period was 2023 with 120 serious collisions, and the count is up 3% between 2021 and 2025.
Every serious and fatal collision on the A259
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
- Brighton and Hove82 KSI
- Arun68 KSI
- Lewes56 KSI
- Folkestone and Hythe54 KSI
- Hastings53 KSI
- Rother50 KSI
Local authority areas with the most serious collisions on this road.
The trend
Serious and fatal collisions on the A259
2025: 111 (down 3.5% on the year before) · peak 120 in 2023 · +2.8% across the period
Axis clipped to the data range to show year-on-year movement.
About the A259
How many accidents happen on the A259?
Police recorded 1,871 injury collisions on the A259 over 2021–2025, of which 555 were fatal or serious. Those serious collisions left 595 people killed or seriously injured, including 18 fatal collisions.
Is the A259 a dangerous road?
By volume of serious injury it ranks 4 of the 150 numbered roads we analyse, and 4 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 A259 do collisions happen?
They concentrate in Brighton and Hove, Arun, Lewes. 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.
Need this data for your own work?
Site and junction reports from £95, next working day. Free for community groups, campaigners and journalists.