The A270: where people are seriously hurt
Over 2021–2025, 114 people were killed or seriously injured in 111 collisions on the A270, making it the 107th worst numbered road in Britain by that measure.
111
serious or fatal collisions
114
people killed or seriously injured
2
collisions that took a life
#107
of 150 numbered roads
What the record shows
The A270 carries 346 recorded injury collisions over the period, 111 of them serious or fatal. Serious injury concentrates in Brighton and Hove, Adur. Collisions here are less likely than average to be fatal (2% against 7%), typical of lower-speed urban sections. Most collisions were recorded on 30 mph sections. The worst year of the period was 2022 with 29 serious collisions, and the count is down 35% between 2021 and 2025.
Every serious and fatal collision on the A270
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 Hove102 KSI
- Adur9 KSI
Local authority areas with the most serious collisions on this road.
The trend
Serious and fatal collisions on the A270
2025: 15 (down 11.8% on the year before) · peak 29 in 2022 · -34.8% across the period
Axis clipped to the data range to show year-on-year movement.
About the A270
How many accidents happen on the A270?
Police recorded 346 injury collisions on the A270 over 2021–2025, of which 111 were fatal or serious. Those serious collisions left 114 people killed or seriously injured, including 2 fatal collisions.
Is the A270 a dangerous road?
By volume of serious injury it ranks 107 of the 150 numbered roads we analyse, and 97 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 A270 do collisions happen?
They concentrate in Brighton and Hove, Adur. 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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