Drivers could have the option of paying to use an extra fast lane on 500 miles of UK motorways.
The idea, part of the Governments plan on road pricing, would use lanes built from 2010 or use converted hard shoulders and have a speed limit some 10 to 20 mph faster than uncharged lanes.
The most congested stretches of the M1, M3, M4, M5, M6, M20, M23, M27 and the M62 could have the lanes introduced during peak periods either by widening them or going with the cheaper option of converting the hard shoulder for use as a running lane.
Some in the transport industry have voiced concern at the possibility of confusion for drivers on motorways with two speed limits and the implications of potentially more crashes and accidents on a more regulated and controlled network.
However the Government still believes that road pricing for all cars on congested roads is the most suitable long-term solution. Trials are expected to get underway in Manchester and Cambridge in the autumn after the May local Government elections, with a £200m a year fund for councils to use in implementing congestion charging.