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

  • Road user charging comes a step closer in Oregon
    December 19, 2017
    Having been the first US state to introduce the gas tax a century ago, Oregon is now blazing the road user charging trail. Colin Sowman looks at progress to date. For more than a decade, authorities in Oregon have known of the impending decline in fuels tax income and while revenue increased by more than 5% in 2016, that growth will slow considerably this year and income is projected to start declining in 2020.
  • Technavio names top 5 vendors in the global smart highway construction market 2017-2021
    May 26, 2017
    Technology research company Technavio has announced the top five leading vendors in their recent global smart highway construction market 2017-2021 report. This market research report also lists 14 other prominent vendors that are expected to impact the market during the forecast period. According to the report, the smart highway construction market will grow at an exponential rate and post a CAGR of almost 94 per cent by 2021. The vendors in this market can expect significant market growth in the coming ye
  • Highways Agency publishes 2013 ROI report
    January 16, 2014
    Between 2002 and 2012 over US$5.7 billion was invested on substantial capital investment projects to improve the strategic road network in the UK. The Highways Agency has now published its 2013 Post Opening Project Evaluation (POPE) Meta report is now available on the Agency website, which it says represents the most comprehensive evaluation programme of expenditure within UK transport. Detailed appraisals of individual schemes are also carried out before they are put forward for construction. The broa
  • App informs drivers of delays during Long Beach bridge replacement
    June 6, 2014
    David Crawford previews a work zone travel breakthrough. In February 2014, the Port of Long Beach in California launched what it claims is a groundbreaking construction zone navigation aid - LB Bridge mobile app. The app is designed to help drivers during the Gerald Desmond Bridge replacement programme by keeping them up to date on activity and the ensuing traffic diversions when construction starts in summer 2014. The unusually content-rich app is designed to convey current project news (enlivened by phot