OWNERSHIP of Scotland's motorways and major roads will remain in Government hands even although those south of the Border face the prospect of a multibillion-pound sell-off, ministers have said.

Reacting to the semi-privatisation of England's trunk roads proposed by David Cameron yesterday, Transport Scotland, which owns and operates Scotland's trunk roads on behalf of ministers, said there were "no plans" to follow.

The Prime Minister said private-sector funding, including sovereign wealth funds and pension funds, could be tapped for investment in the upkeep of English roads, with a regulator created along the lines of Ofwat, which oversees water and sewerage providers, to maintain standards.

He has ruled out the possibility of road charging being used for the existing network but said new tolls could be introduced to pay for improvements. Money would be diverted from Vehicle Excise Duty to pay for the scheme.

Announcing a feasibility study by the Treasury and Department for Transport, Mr Cameron said England was "falling behind" in essen- tial infrastructure investments. He added: "There is now an urgent need to repair the decades-long degradation of our national infrastructure and to build for the future with as much confidence and ambition as the Victorians once did."

However, despite the road network in Scotland being in a worse condition than south of the Border, there appears to be less appetite to consider such a radical shake-up of ownership.

The spokeswoman for Transport Scotland said: "Scotland's trunk road network is devolved. The UK Government's plans would not apply to Scotland and the Scottish Government has no plans to privatise the road network."

Its stance was supported by Scottish Labour, whose spokeswoman for transport, Elaine Murray MSP, said the privatisation plans showed the Conservatives were "out of touch".

"It would be un-workable and unthinkable for the SNP to implement a similar scheme in Scotland, but the beauty of devolution is that we don't have to," she said.

A report by Audit Scotland last year found the cost of restoring Scotland's dilapidated roads to an acceptable condition would be £40,000 per kilometre.