The maximum length of lorries could be increased in a bid to reduce the number of vehicles on the motorway, the Department for Transport said.
Transport minister Jim Fitzpatrick said a study would be carried out into the effects of increasing the length of trailers by up to two metres.
In a written statement to MPs he said the Government had published its first major study of freight movement.
He said: "The Logistics Perspective publication provides the first detailed analysis of the movement of major freight commodities on the strategic national corridors, while setting out our understanding of the issues affecting each freight mode.
"It also considers how we can work with industry to facilitate effective freight movement while mitigating its environmental and social impact.
"As part of this consideration, the document commits to a study into the potential effects of an increase of up to two metres in the length of articulated vehicle trailers."
Mr Fitzpatrick added: "The study will consider whether there are clear benefits in changing the permitted length to reduce the numbers of lorries on roads, taking into account freight demand and the interaction between road, rail and water transport."
© Press Association 2008