Skip to main content

Variable speed limits to be introduced in Scotland

Motorists using the M90 in Scotland will face the country’s first variable speed limits in three weeks time when a new traffic control system is launched on the road north of the Forth Road Bridge. The intelligent transport system, which goes live on 4 December on the M90 northbound, has been installed as part of construction of the Forth Replacement Crossing, which is due to open in four years time. Speeds will be automatically lowered by traffic sensors under the road surface when they detect congestion,
November 15, 2012 Read time: 2 mins
Motorists using the M90 in Scotland will face the country’s first variable speed limits in three weeks time when a new traffic control system is launched on the road north of the Forth Road Bridge.

The intelligent transport system, which goes live on 4 December on the M90 northbound, has been installed as part of construction of the Forth Replacement Crossing, which is due to open in four years time.

Speeds will be automatically lowered by traffic sensors under the road surface when they detect congestion, to smooth traffic flow and reduce delays.

The system will also operate on the M90 southbound and on the M9, south of the Forth Road Bridge, from early next year. Similar systems are in use on the M25 around London and M42 near Birmingham.

Transport minister Keith Brown said: “The Forth Replacement Crossing continues to progress on time and on budget and I’m delighted that we can now begin to turn on the ITS systems to help manage and improve traffic flow and provide buses with a dedicated lane.”

Related Content

  • Enforcement comes in many guises
    June 22, 2016
    Colin Sowman looks at some enforcement case studies from around the world. It is a sad fact of life that unenforced laws are not adhered to by a sometimes sizable proportion of the public and once enforcement is seen to be lacking, some drivers can take this to extremes and authorities must decide how to regain control.
  • Traffic signals turn red to stop speeding drivers
    March 15, 2012
    David Crawford is encouraged by the spread of 'soft' speed policing 
  • Mounting benefits of dynamic tolling project
    January 30, 2012
    Wisconsin's four-year HOT lanes pilot project, launched in May 2008, cost US$18.8 million to construct. Halfway into the project, which uses variably priced, or dynamic, tolling to improve highway efficiency, the benefits are mounting. The problem was obvious, and frustrating, to anyone who ever sat in bumper-to-bumper traffic on State Route 167 and watched a lone car whiz by every 20 seconds or so in the carpool lane. But for planners at the Washington State Department of Transportation, the conundrum was
  • HGV speed limit pilot given the seal of approval
    October 22, 2014
    The legislation to allow heavy goods vehicles (HGVs) to travel at 50mph on sections of single carriageway on the A9 between Perth and Inverness in Scotland has been signed and will come into force at the same time as the average speed camera system on the route becomes operational – 28 October. The pilot, which was approved by the Scottish Parliament earlier this year, will help to improve journey times and also driver behaviour, by reducing frustration, queue lengths and journey times for HGVs. Trans