It is estimated that road traffic congestion results in costs to business of about pound]3 billion a year, as well as causing air pollution and frustrating peop

Road congestion is estimated to cost industry and commerce £3 billion a year, with around 7% of the motorway and trunk road network suffering heavy congestion

In May 2009 the Highways Agency signed a 30 year private finance contract for widening two sections of the M25 motorway, including the Dartford Crossing, and ma

The global environment has significantly changed due to a number of factors such as industrial pollution, expansion of agricultural land way beyond the fringe f