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.
9. A27 westbound within the A283 junction
Vehicles on the A27 westbound within the A283 junction were held up for 120.3 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images
10. A27 westbound between A285 near Chichester (west) and B2144
Vehicles on the A27 westbound between A285 near Chichester (west) and B2144 were held up for 117.1 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images
11. A27 eastbound between A24 near Worthing (east) and A2025
Vehicles on the A27 eastbound between A24 near Worthing (east) and A2025 were held up for 106.8 seconds per mile Photo: National Motor Museum/Heritage Images/Getty Images