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Data from the National Highways National Traffic Information Service (NTIS) show which A roads have seen the most delays for motorists.
The information covers 2023 and is calculated to measure seconds per vehicle per mile of congestion.
A roads across the Portsmouth area have been included in the list. Many of them are busy commuter roads which link towns and cities.
Here are the 9 most congested roads in the Portsmouth area, according to the NTIS.
9. 2 - A334
The A334, which goes through Botley to Shedfield, is the second most congested road in the Portsmouth area. The average delay was 91.7 seconds per vehicle per mile in 2023. Photo: Google Street View
10. 1 - A2047
The A2047, which covers London Road through Hilsea and North End, Kingston Road and Fratton Road - ending at the Rudmore roundabout - is the most congested road in the Portsmouth area. The average delay was 117.9 seconds per vehicle per mile in 2023. Photo: Chris Moorhouse