Liberal Democrat MP says West Midlands motorway pilot project is a grossly irresponsible action
The hard shoulder of an 11-mile stretch of the M42 between junctions 3A and 7 is being opened to traffic to cut rush-hour congestion. This section includes Birmingham airport, the NEC and links between other routes such as the M6. The M42 is one of the most heavily congested motorways in the country. Sensors measure the volume of traffic and if it appears to be at risk of grinding to a halt the "active traffic management" system will come into operation, allowing cars to use the hard shoulder at a maximum speed of 50mph.