The National Party has made an election promise to build 10 new highways or "roads of national significance".
They'll be four-laned state highways in regions ranging from Northland to Canterbury.
The 10 roads are:
- Wellsford to Whangarei
- Auckland's East-West Link
- Cambridge to Tirau
- Piarere to the foot of the Kaimai Range
- Tauranga to Katikati
- Napier to Hastings
- Manawatu Gorge
- Levin to Sanson
- Christchurch northern motorway
- Christchurch to Ashburton.
National's leader, Bill English, said the roads will cost $10.5 billion and will be funded through the National Transport Fund and public-private partnerships.
Some of the spending, such as for the East-West Link, has already been announced.
Work is already under way on an initial group of seven roads of national significance.