Cromwell Trucks and Online Marketing Surgery have created their Road Delay Report, which helped rank roads in West Sussex based on their delays.
This determines where people are waiting the most on their travels.
The recent data around road delays in England was taken from GOV.UK, where it was motorways and major A roads, and local A roads.
It looks at how many seconds a vehicle is held up per mile travelled on average in 2023.
These are the top 10 local ‘A’ roads in West Sussex with the most congestion.
You can view the top 10 motorways and major A roads in West Sussex with the most delays here.

9. A23
Vehicles on the A23 were held up for 58.3 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images

10. A2032
Vehicles on the A2032 were held up for 57.4 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images

11. A259
Vehicles on the A259 were held up for 47.2 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images

