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 Government Air Quality Plan – call for funding for FCEVs
    July 27, 2017
    Following the release of the UK Government’s final Air Quality Plan, in which it announced that it will ban all petrol and diesel vehicles (including hybrids) from 2040, ITM Power says this represents an historic first step towards cleaner and greener transport in the UK. However, it is calling on the UK Government to provide equivalent financial support for fuel cell electric vehicles (FCEV) infrastructure as it has already provided for plug-in battery electric vehicle (BEV) infrastructure. The company, wh
  • New system to prevent Hazchem and over-height vehicles entering tunnel
    August 20, 2015
    An impending move to free-flow charging prompted a search for automated dangerous goods identification and over-height detection systems at the Thames Crossing to the east of London. Manned toll booths are increasingly being consigned to history by the onslaught of all-electronic charging. However, a secondary function of the traditional manned plazas has been to prevent non-compliant vehicles using the facility or to tell a driver that that they need to use a specific lane or wait for an escort. Automating
  • FTA calls for all party support of roads reform proposals
    October 29, 2014
    The Freight Transport Association (FTA) has voiced its support of Transport Focus today, whilst responding to the Department for Transport (DfT) announcement of the reform of the Highways Agency (HA) and introduction of a long term vision for improving the UK road network. The Government has set out how a new watchdog and monitor will play a part in helping England’s motorways and major roads run better, whilst the promise from the new voice of the roads, Transport Focus, is to ‘make a difference for ro
  • TransCore wins contract on new HOV to Express lane conversion
    April 3, 2012
    California’s Santa Clara Valley Transportation Authority (VTA) has launched the first phase of its 290km conversion of high occupancy vehicle (HOV) lanes to Express Lanes, or commonly known as high occupancy toll (HOT) lanes, with TransCore serving as lead integrator for the project. The US$11.8 million programme comes at a crucial time in Silicon Valley as it prepares for an expected 38 per cent growth in population over the next 20 years and funding for transportation improvements is projected to grow at