Skip to main content

Highways Agency plans to increase capacity of M4

The UK Highways Agency is holding a series of public exhibitions to inform road users, local residents and businesses about proposals to transform the M4 into one of the longest stretches of ‘smart motorway’ in England by 2021. The improvement, on a 32-mile stretch between junction 3 at Hayes in London, and junction 12 at Theale in Berkshire, would increase capacity, improve journey reliability and maintain safety. The proposals are part of the Government’s investment into England’s motorways and majo
March 19, 2014 Read time: 2 mins
The 1841 UK Highways Agency is holding a series of public exhibitions to inform road users, local residents and businesses about proposals to transform the M4 into one of the longest stretches of ‘smart motorway’ in England by 2021.

The improvement, on a 32-mile stretch between junction 3 at Hayes in London, and junction 12 at Theale in Berkshire, would increase capacity, improve journey reliability and maintain safety.

The proposals are part of the Government’s investment into England’s motorways and major A-roads, which will see up to US$6.7 billion a year pumped into improving the roads by 2021, underpinning economic growth and high quality jobs across the region.

As part of the proposals, there would be 64 miles of new traffic lane taken from the existing hard shoulder, increasing capacity.   The initial scheme design also includes 131 new gantries, with 32 existing gantries remaining, while eleven bridges would be rebuilt to provide space for the additional traffic lane and provide safe journeys over the M4 for decades to come. In addition, 32 refuge bays are proposed alongside the carriageway for use by drivers in an emergency.

Subject to gaining consent, construction would be carefully planned to be carried out in phases from 2016.

Lynne Stinson, Highways Agency project manager said: “The M4 is an important corridor in and out of London for those who live and work in Buckinghamshire and Berkshire, as well as those further afield in the South West and Wales, with around 130,000 vehicles using this stretch every day.

“Based on proven benefits elsewhere, we have produced outline proposals that would see 32 miles of the M4 transformed into a ‘smart motorway’; we’re planning extra capacity by converting the hard shoulder into an additional traffic lane and introducing variable mandatory speed limits displayed overhead to help smooth the flow of traffic and reduce congestion, and to provide traffic information, with safety bays in place to maintain safety.”

For more information on companies in this article

Related Content

  • 780 SolarLite road studs deployed on UK motorway accident black spot
    July 11, 2012
    An unlit stretch of the M42 motorway in the UK, identified as an accident black spot area due to the lack of street lighting linked to increased accident rates, has seen the installation of 780 Astucia SolarLite road studs. The studs, along the carriageway of the M42 from junctions 1 to 3a, give drivers up to 900 metres visibility of the road layout ahead, which is up to ten times greater than would be possible from traditional retro-reflective ‘cats eye’ road studs. In addition, the existing two metre whi
  • Let me hear you, Glastonbury! Oh, and the car park is this way
    June 28, 2023
    SRL takes on traffic management plan for world's largest greenfield music festival
  • Highways England selects CGI for three-year end user computing services contract
    May 12, 2015
    Highways England (formerly the Highways Agency) has awarded CGI a contract to provide its information and communications technology (ICT). The three-year end user computing services contract will support Highways England through a major IT refresh and its transition from a government agency within the UK Department for Transport to a government-owned company. CGI will provide end user computing services through a collaborative ICT model for over 3,500 Highways England staff. The new end user computing
  • Rating agency Standard and Poor Tolling sees a bright future for tolling
    September 6, 2017
    Few disruptions appear on the horizon for global toll road operators, with the US poised to become a better bet for major investment, according to ratings agency Standard and Poor’s (S&P’s) Global Ratings’ 2017 report, which rates toll road operators according to their ability to raise capital. The outlook is generally stable for business conditions and credit quality for toll roads worldwide. One positive exception is the US where the overall outlook is ‘positive’ as S&P expects traffic growth to increase