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

  • Cycling boost for East of England
    December 11, 2015
    Cyclists in the East of England are set to benefit from new or improved cycle routes alongside some of the region’s major A roads as early as Easter 2016, following the award of a construction contract worth up to US$3.1 million. The contract will see Geoffrey Osborne start in the New Year to build or upgrade 17 cycling paths at sites across the region including the A12, A120, A47, and the A5. The project is part of a US$152 million national strategy to offer greater accessibility to England’s major road
  • Researchers helping to reduce New Zealand’s congestion
    April 7, 2015
    Researchers at the University of Canterbury, New Zealand claim the impact of congestion in the country’s major cities could soon be greatly reduced. They are exploring how the movement of vehicles on New Zealand’s city roads can be more efficiently managed after accidents and breakdowns. University of Canterbury transport engineer Professor Alan Nicholson says their research shows drivers tend to divert off the motorway in large numbers only after a slow queue becomes visible. Along with Dr Glen Koorey and
  • Swarco McCain adds VMS to Virginia
    December 19, 2022
    Signs can be run by AC or DC power, plus six of them are off-grid and solar powered
  • Tattile explores freedom of movement
    October 5, 2020
    Dense urban centres are complex enforcement environments – but camera-based traffic systems enable all aspects of monitoring, explains Massimiliano Cominelli of Tattile