Skip to main content

South west’s first smart motorway opens

The first smart motorway scheme in the UK’s south west has been officially launched, covering seven miles of motorway around the Almondsbury interchange and including junctions 19-20 on the M4 and junctions 15-17 on the M5. It is designed to help reduce congestion and improve safety and journey times by introducing variable speed limits and opening the hard shoulder during busy traffic periods. The improvements to the M4 and M5 use a range of technologies and operational systems to reduce congestion and
January 15, 2014 Read time: 2 mins
The first smart motorway scheme in the UK’s south west has been officially launched, covering seven miles of motorway around the Almondsbury interchange and including junctions 19-20 on the M4 and junctions 15-17 on the M5.  It is designed to help reduce congestion and improve safety and journey times by introducing variable speed limits and opening the hard shoulder during busy traffic periods.

The improvements to the M4 and M5 use a range of technologies and operational systems to reduce congestion and smooth the flow of traffic. During busy periods, traffic officers in the regional control centre at Avonmouth will set overhead message signs to inform drivers they can use the hard shoulder as an extra lane and at what speed to drive.

The project included installation of 33 new gantries, refurbishing seven existing ones, resurfacing over 14 miles of carriageway, laying over 30 miles of fibre optic cabling and constructing six emergency refuge areas.

Launching the scheme, Roads Minister Robert Goodwill said: “Every day, more than 140,000 vehicles use this section of motorway which is an essential gateway to the South West. That is why the government has invested almost US$148 million to help improve access and traffic flow on this vital route. This is the first smart motorway in the region and I’m delighted that road users and businesses will be able to benefit from the improvements earlier than planned.”

503 Highways Agency senior project manager Paul Unwin said: “The M4 and M5 scheme demonstrates how a smart and efficient solution can deliver improvements that road users need – more capacity and better management of traffic to reduce congestion and make journey times more reliable.”

For more information on companies in this article

Related Content

  • Road user charging potential solution to transportation problems
    December 14, 2012
    A number of new and highly significant open road tolling schemes have just been launched or are soon to ‘go live’. Systems of road user charging are flexing their muscles as the means to solve politically sensitive transportation problems, reports Jon Masters. Gothenburg, January 2013, will be the time and place for the launch of the next city congestion charging scheme in Europe. In a separate development, Los Angeles County’s tolled Metro ExpressLanes began operating in November 2012 – the latest in a ser
  • No in-road equipment for Queensland's free flow toll bridge
    February 1, 2012
    By May this year, the new Gateway Bridge in Brisbane, which is being built alongside an existing bridge, will be open. With it will come an end-to-end free-flow tolling system. Interview with Sue Caelers, Queensland Motorway Ltd. Queensland Motorways Ltd owns and operates 61km of roadway in the area around Brisbane, Australia. This includes the Gateway Bridge and the Gateway Extension, Logan and Port of Brisbane motorways.
  • UK organisations disagree on smart motorway ‘dangers’
    September 13, 2019
    A spat over how dangerous the UK’s all lane running (ALR) or ‘smart’ motorways are has broken out between Highways England and a leading motoring organisation. Smart motorways do not have hard shoulders, instead relying on emergency areas at intervals to provide refuge for stranded motorists. The AA recently highlighted Stationary Vehicle Detection, a Highways England report published in March 2016, which looks at how long it takes to identify a vehicle broken down in a live lane of smart motorway when s
  • Scrap all-lane running plans, say MPs
    June 30, 2016
    Plans to convert hundreds of miles of UK motorway hard shoulder into permanent driving lanes should be scrapped while major safety concerns exist, the Government’s Transport Committee has said. In 'all lane running', the latest version of smart motorways, the hard shoulder is used as a live lane of traffic. Previous schemes have only used the hard shoulder at peak times or to deal with congestion. The Committee did not agree with Government that this is an incremental change and a logical extension of