Skip to main content

M25 upgraded to ‘smart’ motorway

Road users on the vast majority of the UK’s M25 will benefit from four-lane capacity now that the final section between junctions 25 and 27 has become a smart motorway. The road has been upgraded from three to four lanes in each direction, with the hard shoulder converted for use as a permanent traffic lane and enhanced on-road technology to manage traffic flow to improve the reliability of journey times, providing a boost for businesses and the wider economy.
November 10, 2014 Read time: 2 mins

Road users on the vast majority of the UK’s M25 will benefit from four-lane capacity now that the final section between junctions 25 and 27 has become a smart motorway. The road has been upgraded from three to four lanes in each direction, with the hard shoulder converted for use as a permanent traffic lane and enhanced on-road technology to manage traffic flow to improve the reliability of journey times, providing a boost for businesses and the wider economy.

The improvements on all sections of the M25 are part of a new generation of technology-driven improvements on the strategic road network known as ‘smart motorways’ with the permanent conversion of the hard shoulder for traffic, providing 24/7 extra capacity. The new infrastructure and technology that has been added between junctions 25 and 27 includes gantries spanning both carriageways, refuge areas, emergency telephones, overhead signals, verge-mounted signs and CCTV cameras.

Roads minister John Hayes said: “This upgrade is great news for 140,000 motorists who use this section of the M25 every day. It will mean smoother journeys, less congestion and provide a real boost to those businesses US$38 billion commitment to improve Britain’s roads by 2021 is helping to deliver a smarter motorway network that drives forward our economy and gets people to their destinations safely and on time.”

John Martin, 503 Highways Agency project manager said: “The new smart motorway will provide extra capacity and offer more reliable journeys. I would like to ask 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 unlikely event of a breakdown."

For more information on companies in this article

Related Content

  • Calls for smart motorway halt grow louder
    November 5, 2021
    UK transport select committee says hard shoulder motorways “apparently confuse” drivers
  • Motorists want roads repaired before smart motorways, says survey
    December 5, 2014
    According to research by Bury-based online car supermarket JamJar Direct, which indicates that 47 per cent of Greater Manchester motorists claim to have been affected by the construction works, communications around the M60 smart motorway improvements are sorely lacking. Almost two thirds of Greater Manchester motorists (62 per cent) are aware that the M60 is being turned into a smart motorway, but over 40 per cent, equivalent to 81,000 vehicles per day using affected stretch of M60 between junctions 8 a
  • Cheshire’s M6 to become smart motorway
    July 2, 2015
    Draft regulations to introduce variable mandatory speed limits as part of the planned smart motorway upgrade to 18 and a half miles of the M6 in Cheshire were published this week for consultation with key stakeholders. Highways England is planning to start construction work on the US$299 to US$427 million project between junction 16 at Crewe and junction 19 at Knutsford later this year. The hard shoulder will be converted into a permanent extra running lane and smart motorway technology installed to give
  • UK smart motorways scrapped due to 'lack of public confidence'
    April 17, 2023
    'Pause' on roll-out has been made permanent - with £1bn cost also cited as a factor