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

  • Aselsan experiences surge in traffic projects
    October 7, 2015
    Turkish exhibitor Aselsan has enjoyed a recent boom in Traffic Systems projects. The company is participating in all of the country’s recent public-private partnership (PPP) highway construction projects as the electronic toll system supplier. It is involved in three prestigious PPP projects. The İstanbul-İzmir highway involves a 500 km highway plus the İzmit Bay Bridge, one of the world’s longest span bridges. The northern part of the highway is set for operation by the end of this year.
  • Cycling in London grows by ten per cent
    February 2, 2015
    London’s cycling revolution accelerated last year, with 2014 seeing new records for usage of the capital’s cycle hire scheme and overall cycling on the Transport for London (TfL) road network. Across the TfL road network, London’s main roads, cycling levels in quarter 3 of 2014/15 (14 September to 6 December) were ten per cent higher than in the same quarter the previous year and the highest since records began in 2000. It was the fifth record quarter in a row. By the end of 2014/15, TfL forecasts a 12 p
  • Reduced street lighting has no effect on road casualties and crime, says study
    July 29, 2015
    Reduced street lighting at night has no impact on road collisions or crime, says a study, led by the London School of Hygiene & Tropical Medicine in partnership with University College London and published in the Journal of Epidemiology and Community Health. Many local authorities in England and Wales have reduced street lighting at night to save money and reduce carbon emissions. According to the UK’s Automobile Association (AA), its 2014 research showed that although night-time accidents in bad weat
  • Reducing injuries and deaths in US workzones shouldn’t be this complicated
    April 17, 2023
    In National Work Zone Awareness Week, surely the least we can do is to help get road workers home safely at the end of the day, says One.network's boss