A 60mph speed limit experiment on the M1 and M6 is being shelved after air quality improved - despite no reported change in drivers' average speeds. The motorways, two of the UK's busiest ...

Motorists will face new speed restrictions on the M1 from today (Wednesday, November 27) due to smart motorway systems being temporarily switched off for maintenance. The M1 through ...

The M1 in Northamptonshire is one of the routes ... which included the hard shoulder being converted into a live running lane, and variable speed limits. Smart motorways without a hard shoulder ...