The government insisted upgrades to the A47 are still due to start in 2019 as it unveiled its latest roads plans.

This week the transport secretary announced £3bn to improve roads across the UK, but nothing was earmarked from the A47, despite a pledge by former Conservative prime minister David Cameron before the last election.

The Department for Transport said Highways England's most recent delivery plan – published in July – said work on the A47 would start in 2019/20, but some safety improvements to the Acle Straight could begin earlier. Acle Straight dualling is not in the pipeline because it could take four years to see if tiny rare snails have adapted to a new home away from the road. Roads minister Andrew Jones said the A47 was 'on my radar' because it was an 'opportunity'.

Great Yarmouth MP Brandon Lewis MP has welcomed the government's announcement which includes over £2.4m for fixing potholes.

''The funding to fix potholes in our area will also be welcome news for local motorists, many of whom have expressed their frustration to me about the state of our roads,' he said.