This article lists current and planned road building in the United Kingdom.
Significant investment is expected, including plans for £14 billion of investment in road expansion by England's National Highways.
[1] In addition to physical expansion, smart motorways have been pursued as a means to increase capacity by introducing regular traffic on the hard shoulder.
Transport is devolved, projects in Scotland, Wales, and Northern Ireland are delivered in co-operation with the devolved authorities of Transport Scotland, the Welsh Government, and DfI Roads respectively.
Legal challenges against the construction of specific roads: Transport Action Network challenged the Government over its Road Investment Strategy 2 (RIS2) on climate grounds.