Skip to main content

M25 becomes UK’s smartest motorway

Final preparations are taking place for the M25 to become England’s first smart motorway, improving journeys and boosting the economy. Two sections of the motorway opening this month and next are between junctions 23 and 25 in Hertfordshire and between junctions 5 and 6/7 on the Kent/Surrey border. For the first time on a motorway scheme in England the hard shoulder will be used as a permanent traffic lane, with enhanced technology to manage traffic flow to improve the reliability of journey times.
April 11, 2014 Read time: 2 mins
Final preparations are taking place for the M25 to become England’s first smart motorway, improving journeys and boosting the economy.

Two sections of the motorway opening this month and next are between junctions 23 and 25 in Hertfordshire and between junctions 5 and 6/7 on the Kent/Surrey border.

For the first time on a motorway scheme in England the hard shoulder will be used as a permanent traffic lane, with enhanced technology to manage traffic flow to improve the reliability of journey times.

The improvements, spanning some 20 miles of the M25, are part of a new generation of technology-driven improvements on the strategic road network known as ‘smart motorways’.

The advance on the M25, which will be repeated on other motorways, is the permanent conversion of the hard shoulder for traffic, providing 24/7 extra capacity.

John Martin, 503 Highways Agency senior project manager said: “Around US$3 billion is being invested into roads in the south east by 2021 with 145 new lane miles of capacity added. Most of the work to improve journeys on these stretches in Hertfordshire and Kent/Surrey is complete and we are now testing the new technology. “We are delighted to be able to open the first part of the northern section ahead of the planned full completion in December 2014. The southern section is completing significantly earlier than planned due to rescheduling of the programme.

“Soon the smart motorway will be complete and we are now asking drivers to get smart and find out more about how to use it, the types of signs and signals they will see and what to do in the event of a breakdown. “This really is the start of a new age on England’s motorways.”

Related Content

  • July 23, 2015
    Over US$2.3 billion of investment awarded to upgrade motorways in England
    Highways England has appointed six joint-venture companies to design and build ten smart motorways across England as part of a US$2.3 billion investment. Three of these projects will start in autumn this year: two in the Midlands on the M1 J19 to J16 in Northamptonshire and the M5 J4a to J6 in Worcestershire, and one in the north-west on the M6 J16 to J19 near Stoke-on-Trent. The smart motorway schemes, part of the US$23 billion government investment Highways England is delivering between now and 2021
  • January 15, 2014
    South west’s first smart motorway opens
    The first smart motorway scheme in the UK’s south west has been officially launched, covering seven miles of motorway around the Almondsbury interchange and including junctions 19-20 on the M4 and junctions 15-17 on the M5. It is designed to help reduce congestion and improve safety and journey times by introducing variable speed limits and opening the hard shoulder during busy traffic periods. The improvements to the M4 and M5 use a range of technologies and operational systems to reduce congestion and
  • November 1, 2013
    Section of M6 motorway to be made ‘smart’
    A section of the M6 motorway in the UK between junctions 10a and 13 is to be upgraded to a smart (managed) motorway with all-lane running. This section of the motorway is a major strategic route, carrying around 120,000 vehicles per day.
  • February 2, 2016
    Smarter motorway for West Yorkshire
    Drivers on the M1 near Wakefield will benefit from reduced congestion and improved journey times after the final phase of a new US$172 million smart motorway went live. The Highways England scheme along a seven-mile stretch of motorway between junction 39 and junction 42 is the first all lane running motorway in the north, where the hard shoulder has been permanently converted to an extra lane. The smart motorway uses the latest technology to monitor traffic levels and variable speed limits on overhea