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

  • Progressing work zone safety systems
    February 6, 2012
    David Crawford investigates progress in a key safety area - work zones
  • State of the art ITS technology for Doha tunnel management system
    January 31, 2012
    Husam Musharbash, Traffic Tech Group, talks about tunnel management system implementation on the new route between Doha and the soon-to-open New Doha International Airport. The new Ras Abu Aboud Tunnel in Qatar, which opened to traffic in January of this year, will serve the New Doha International Airport once the latter opens in 2011.
  • ITS Australia celebrates 2021 Awards winners 
    February 21, 2022
    Winners include Lexus, Aimsun, Bosch - and Peter Bentley wins lifetime achievement trophy
  • FTA backs HGV speed limit increase
    July 24, 2014
    The UK’s Freight Transport Association (FTA) has voiced its support of today’s announcement that the HGV national speed limit on single carriageway roads will increase from 40mph to 50mph. The Government decision followed a public consultation to which FTA had contributed and states that in early 2015 the national speed limit for heavy goods vehicles of more than 7.5 tonnes on single carriageways will increase. FTA said that this decision supports an improvement in road safety by reducing the 20mph