The £1.5 billion upgrade of the A14 in Cambridgeshire has reached another milestone with the opening of a major junction with the A1.
It is an important step forward for local businesses in the East of England which have been left frustrated by long diversions and delays.
The A1 in Cambridgeshire has been widened from two to three lanes in each direction for 3.5 miles and the 70mph speed limit has been restored, benefitting the 31,000 drivers who use the road every day.
Click to watch a report by ITV News Anglia's Elodie Harper
Highways England is upgrading 21 miles of the A14 between Cambridge and Huntingdon.
The improvements include creating links between the A14 and the A1, with a redesigned junction and widening of the A1 either side of it.
Highways England says the project will upgrade a key link between the East coast and the Midlands and save up to 20 minutes for the 85,000 drivers who use it every day.
A decision is due soon on designating part of the improved A14 and A1 as motorways which could create a continuous motorway from London to Peterborough for the first time.