MPs from across the Anglia region will continue to lobby for the A47 to be fully dualled.
The government has already agreed to a £300m investment programme which will see improvements at key pinch-points including the Acle straight.
They will also see the road - which runs from Great Yarmouth in Norfolk, through Cambridgeshire to Leicester - become a dual carriageway from Dereham through to Acle.
But following a meeting between a number of Norfolk and Suffolk MPs and with Highways England this week, Elizabeth Truss insisted last year's the announcement would not stop them lobbying for further improvements.
"I am keen to ensure that Highways England is planning for the long term so the A47 is future-proofed for further upgrades. Along with my fellow MPs, we want the A47 fully dualled and I have asked Highways England to present the economic case for this."
One person has died after a crash on the A47 in Peterborough.
The collision between two vehicles happened this lunchtime on the Eye bypass near McDonalds.
The A47 has been closed in both directions between the junctions with the A1139 and Crowland Road. Motorists are advised to avoid the area.
Drivers have been warned to "expect significant delays" as a series of overnight weekend closures on the A47 in Norwich begins.Read the full story ›
A woman has been killed after two cars collided on the A47 Acle Straight in Norfolk and crashed into water-filled ditches.
Emergency services were called to the scene just before 7.10pm on Wednesday evening after two cars travelling in opposite directions were involved in the crash about a mile from Acle. Both of the cars, a Ford Puma and Skoda Fabia, left the road and came to rest in water filled ditches.
"Firefighters removed the Ford from the ditch allowing the driver and passenger to be rescued while the driver of the Skoda was able to escape unaided. Both drivers were taken to the James Paget University Hospital for treatment while the front seat passenger of the Ford, a woman in her 50s, was taken to the Norfolk and Norwich University Hospital where she later sadly died."
The road was closed for five hours while emergency services carried out initial investigations, cleared the road of debris and recovered the cars.
Police would like to hear from witnesses of the crash.
Norfolk Police say there are long delays both east and westbound on the A47 at Postwick, east of Norwich.
Police say the delays were caused by accdents on both carriageways earlier this morning.
The campaign to upgrade the A47 has had another boost with the visit of Robert Goodwill, the Parliamentary Secretary of State for Transport, who has driven along the road.
The A47 Alliance which represents businesses and local authorities along the A47 and A12 from Lowestoft to Peterborough has given the Minister an update on their priorities for the road.
They're calling for £416 million of targeted improvements over the next 6 years and a commitment to fully dual the A47 at a cost of £1.4 billion.
Doing this would cut 55 minutes off journey times and would lead to more jobs, homes and an economic boost.
16,890 more jobs
10,585 new homes
An annual £706 million boost in economic output ( GVA)
The Minister is travelling the whole route including the A12 at Lowestoft up to the A1 at Peterborough. He will also meet local MPs along the way.
Toby Coke, Chairman of Norfolk County Council's Environment, Development and Transport Committee, said.
"What we need is firm commitment to fund the upgrading of the entire A47. The Government talks about infrastructure improvement, and it is needed here in Norfolk and our neighbouring counties now.
Police are appealing for witnesses following a three-car crash on the A47 Acle Straight in Norfolk.
A silver Honda Jazz, black Nissan Qashqai and a black Kia Picanto were involved in a collision at the Halvergate turning on Saturday 21st June.
One person suffered minor injuries.
A £10,000 reward has been offered to help catch a driver who caused a crash which led to the death of a Norfolk woman.
Kim Utting died on the A47 in Norfolk last year. The man who hit her also suffered serious injuries.
He has offered the money to help track down the driver of a black car who it is believed caused the accident.
A man from Dereham who was seriously injured last year in a collision on the A47, in which a woman died, has offered a reward for information.
Andrew Scottow was driving a red Skoda Felicia on the 14th February 2013 when he swerved to avoid a black car which was driving erratically.
This caused Andrew to lose control of his car and he was involved in a head on collision with a green Peugeot 406.
52 year old Kim Utting who was a passenger in the green Peugeot died as a result of the collision.
Andrew Scottow himself sustained serious injuries and spent weeks in hospital.
Despite numerous appeals, the identity of the black car is still unknown so Mr Scottow is now offering a £10,000 reward for information.
Someone knows who the driver of that black car was. I want them to think about what the result of that driver’s actions has been to Mrs Utting’s family, my long term injuries, and hopefully, with a bit of incentive, they will come forward and do the right thing.”
A nineteen million pound improvement project is due to start on the A47 at Postwick near Norwich.
Government funding was granted 5 years ago, but it's been subject to a number of legal challenges.
The work is intended to release land for up for 1,600 homes and make it easier to build a planned northern bypass round the city.