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

  • UK plans to penalise rush hour road works
    April 18, 2012
    Innovative measures to cut the number of rush hour road works have been announced by UK Transport Secretary Philip Hammond. Under ‘lane rental’ schemes, councils would be able to charge utility companies to dig up the busiest roads during peak times when road works cause the most disruption. Companies would be able to avoid the charges by carrying out works during quieter periods or, if appropriate, at night.
  • Contracts awarded for London’s traffic signals upgrade
    July 18, 2014
    Transport for London (TfL) has awarded new traffic signals maintenance contracts, worth around US$542 million for up to eight years, which will see the capital’s 6,000 traffic signals upgraded and maintained to the latest, greenest standards. Awarded to Telent Technology Services for west and south-west London, Siemens for north and north-west London and Cubic Transportation Systems for south-east London, the new Traffic Control Management Services contracts will help expand the use of intelligent traf
  • Autonomous driving – what can we really expect?
    June 6, 2016
    Dave Marples of Technolution BV looks beyond the hype to the practical implementation of autonomous vehicles. Having looked at the development of this sector for some time, I am concerned about the current state of autonomous driving development as engineering (and marketing) have run way ahead of the wider systemic, and legislative, requirements to support an autonomous future.
  • Reason Foundation makes a case for more toll lanes in southern California
    November 24, 2015
    S public policy think tank the Reason Foundation has unveiled a detailed long-range transportation plan to reduce the traffic congestion that has plagued southern California for decades. The Reason Foundation plan would decrease southern California’s infamous gridlock by creating a connected network of variably priced toll lanes on all of the region’s major highways and expressways