Skip to main content

Variable speed limit signs deployed in Canada

The British Columbia government in Canada has deployed variable speed limit signs along three highways in the province, Highway 99, Highway 5, and Highway 1, which are prone to rapidly changing weather..Variable speed limit signs display the legal speed limit when road and weather conditions change. From 2 June, motorists are required to obey the signs, which are regulatory and enforced by the police. Static message signs at the entrance to each corridor inform travellers they are entering a variable
June 10, 2016 Read time: 2 mins
The British Columbia government in Canada has deployed variable speed limit signs along three highways in the province, Highway 99, Highway 5,  and Highway 1, which are prone to rapidly changing weather..Variable speed limit signs display the legal speed limit when road and weather conditions change.

From 2 June, motorists are required to obey the signs, which are regulatory and enforced by the police.

Static message signs at the entrance to each corridor inform travellers they are entering a variable speed zone. A digital message sign (DMS) at the beginning of each corridor warns drivers of changing weather conditions. Flashing lights installed above each variable speed limit sign are activated when a reduced speed limit is in effect.

Traffic, road and visibility sensors monitor real-time traffic speeds as well as road and weather conditions to provide recommended reduced speeds back to operations staff who then adjust the electronic signs to let drivers know what speed they should be travelling for the current conditions.

Webcams installed along each of the routes monitor traffic and weather conditions to provide drivers and operators at the Regional Transportation Management with real time information on conditions along the routes.

Related Content

  • IntelliDrive and HOT lanes - the next generation?
    January 30, 2012
    Janet Banner, Metropolitan Transportation Commission, and Christopher Hill, Mixon Hill, Inc., outline efforts to explore the use of IntelliDrive technologies in HOT lane applications. On 21 October last year more than 100 transportation professionals came together for a workshop, either in person or via a webinar, to discuss the potential role of IntelliDriveSM technologies in enhancing the operations of High-Occupancy Toll (HOT) lanes. The discussions focused on a White Paper, commissioned by the Metropoli
  • Wider uses for weigh in motion data
    March 18, 2014
    Colin Sowman talks to Terry Bergan of International Road Dynamics about the latest uses of weigh-in-motion systems. Raising allowable truck weight limits improve transport efficiency but leaves an ever-increasing number of bridges vulnerable to being overloaded and damaged by vehicles heavier, and in some cases far heavier, than they were designed to carry. The simplistic solution is to impose weight restrictions and erect appropriate signs - but this could have severe knock-on effect on trucking operations
  • 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.
  • Variable speed limits to be introduced in Scotland
    November 15, 2012
    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,