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

  • Interoperability facilitates mobility on Santiago’s toll roads
    August 10, 2016
    Drivers crossing Chile’s capital are benefitting from additional investment in ITS. Mauro Nogarin reports. Santiago de Chile is pioneering the development of concession-interoperable, multi-lane, free-flow urban highways. This road network crosses the city from north to south (Autopista Central), from east to west (Costanera Norte) and also includes the north-western (Vespucio Norte) and southern (Vespucio Sur) ring roads surrounding this metropolitan area of seven million people.
  • Australia highway to receive smart tech 
    October 12, 2021
    Smart motorway tech will be installed between Pine River and Caloundra Road
  • UK driver information improvements near completion
    March 27, 2015
    A major investment in technology to help tackle congestion and give better information to drivers across parts of the UK’s north west will be completed by the Highways Agency by the end of the month. Improvements worth more than US$8.5 million, with extended CCTV coverage of the region’s motorways and new electronic variable message signs (VMS), are being delivered by the Highways Agency as part of the Government’ US$470 million pinch point programme. Work on installing new electronic signs and CCTV c
  • Scrap all-lane running plans, say MPs
    June 30, 2016
    Plans to convert hundreds of miles of UK motorway hard shoulder into permanent driving lanes should be scrapped while major safety concerns exist, the Government’s Transport Committee has said. In 'all lane running', the latest version of smart motorways, the hard shoulder is used as a live lane of traffic. Previous schemes have only used the hard shoulder at peak times or to deal with congestion. The Committee did not agree with Government that this is an incremental change and a logical extension of