Skip to main content

Canadian city pilots technology to improve traffic flow, safety

The City of Edmonton, Canada is piloting new traffic technology to help drivers get where they need to faster, easier and more safely, with the help of the University of Alberta's Centre for Smart Transportation. The city is testing an Advisory Driving Speed system on one of the city’s major freeway where the legal speed limit is 80 km/h and which experiences congestion issues during peak periods. Signage informs drivers of the recommended speed they should travel to avoid traffic jams and sudden stops,
August 21, 2015 Read time: 2 mins
The City of Edmonton, Canada is piloting new traffic technology to help drivers get where they need to faster, easier and more safely, with the help of the University of Alberta's Centre for Smart Transportation.

The city is testing an Advisory Driving Speed system on one of the city’s major freeway where the legal speed limit is 80 km/h and which experiences congestion issues during peak periods. Signage informs drivers of the recommended speed they should travel to avoid traffic jams and sudden stops, optimising travel time.

The recommended driving speed is calculated using vehicle volume and speed data, gathered by sensors buried under the roadway and ramps. The data are processed through a complex algorithm developed by the centre. The calculation for recommended speed is then programmed and posted on digital signs controlled from the city’s Traffic Management Centre.

Similar technology has reduced collisions and congestion in France, Sweden and the United States. Once the pilot is complete, the city will review the results and evaluate the potential of using the technology as a permanent solution to traffic issues.

“This is an exciting opportunity for our research group to work with the city and tackle the problem of traffic congestion and improving public safety,” said civil engineering professor Tony Qiu, director of the centre in the Department of Civil and Environmental Engineering.

“Other cities have successfully installed advisory speed signs to manage congestion and reduce stop-and-go traffic, and we hope to achieve these benefits in Edmonton as well.”

Qiu says planning for the pilot project began the week he arrived at the U of A six years ago. He says he found a group of like-minded individuals when he met with city transportation officials.

“The recommended speed will change according to issues such as heavy volume, construction, collisions and weather conditions,” said Wai Cheung, technical specialist in advanced traffic analysis with the city’s transportation operations. “If drivers match the recommended speed, even if it’s only 10 km/h slower, they will help reduce congestion and possibly collisions.”

Related Content

  • City of Seattle implements SCOOT adaptive traffic management
    May 2, 2017
    Seattle Department of Transportation (SDOT) has implemented a new adaptive traffic control system at 32 intersections along Mercer Street between 3rd Ave W and I-5, which has been one of the city’s most congested corridors for over 40 years. Developed by the UK’s Transport Research Laboratory, the SCOOT (Split Cycle Offset Optimisation Technique) system coordinates the operation of the traffic signals in and around the corridor to help vehicles move more efficiently. SCOOT works in real-time to reduce delay
  • Development of cooperative driving applications for work zones
    July 17, 2012
    The German AKTIV project is researching several cooperative driving applications for use in work zones. PTV's Michael Ortgiese details progress. The steep increases in traffic volumes predicted back in the early 1990s have unfortunately been proven to be more than accurate. In Germany, the AKTIV project continues to look into cooperative technologies' potential to reduce the impact of those increased traffic volumes and keep traffic moving despite limitations in infrastructure capacity.
  • Bogotá’s affordable path to safer roads
    April 28, 2022
    Enforcing speed limits on key corridors is a cost-effective way of reducing collisions in the Colombian capital, say the authors of a new study. Andrew Stone talks to them
  • Joining the dots: four ways to help cities make the connection
    May 18, 2018
    Smoothing the path to connected transportation systems in urban areas all round the world takes a lot of planning: Cisco’s Kyle Connor lays out the four key areas on which he thinks cities should focus. Forward-thinking cities around the world are exploring innovative, new ways to leverage the Internet of Things (IoT) and related technologies to create more connected and efficient transportation systems. Through greater digitisation and connectivity, cities can optimise public transit routes, reduce