Skip to main content

Study identifies Canada’s worst traffic bottlenecks

Canada’s top 20 most congested traffic bottlenecks may cover just 65 kilometres, but they collectively cost drivers over 11.5 million hours and an extra 22 million litres of fuel per year. These are two findings of Grinding to a Halt, Evaluating Canada’s Worst Bottlenecks, released by the Canadian Automobile Association (CAA). Studies show that bottlenecks are the single biggest contributor to road delay, far outpacing traffic accidents, inclement weather and construction. The report provides data-based
January 12, 2017 Read time: 2 mins
Canada’s top 20 most congested traffic bottlenecks may cover just 65 kilometres, but they collectively cost drivers over 11.5 million hours and an extra 22 million litres of fuel per year. These are two findings of Grinding to a Halt, Evaluating Canada’s Worst Bottlenecks, released by the Canadian Automobile Association (CAA).


Studies show that bottlenecks are the single biggest contributor to road delay, far outpacing traffic accidents, inclement weather and construction. The report provides data-based evidence for decision-makers to use when making decisions on infrastructure investment and environment policy.  It includes the cost to Canadians of these bottlenecks in terms of lost time, productivity and added greenhouse gas emissions.

“Traffic congestion is a major source of stress for Canadians. Our study concludes that traffic bottlenecks affect Canadians in every major urban market, increasing commute times by as much as 50 per cent,” said Jeff Walker, vice-president of Public Affairs for CAA National. “Reducing these bottlenecks will increase the quality of life for millions of Canadians, save millions in fuel costs and reduce greenhouse gases, helping contribute to Canada’s climate change commitments.”

Toronto has ten bottlenecks in the top 20, Montreal five, Vancouver four and Quebec City one. Other cities such as Calgary, Edmonton, Regina, Winnipeg, Ottawa and Halifax also experience serious traffic delays.

Related Content

  • New hybrid public transit buses coming to Quebec City
    March 17, 2016
    With funding from Infrastructure Canada and the Government of Quebec, Canada, Réseau de transport de la Capitale (RTC) in Quebec City, Canada, is to purchase up to 32 new hybrid midi-buses from Belgian company Van Hool. The A330 hybrid diesel-electric vehicles are nine metres long and equipped with low-floor entrances and manual ramps. The midi buses will be equipped with a hybrid propulsion technology whose operating principle is similar to the hybrid bus used by the RTC since July 2015. RTC believes th
  • EVs: Time for a rethink
    December 14, 2021
    Given a growing body of evidence that EVs are not the clean, green machines they are made out to be, Andrew Bunn suggests they can only be part of the puzzle – not the answer to environmental problems
  • Covid-19 cleared the air: ITS can keep it clean
    July 31, 2020
    Covid-19 has created cleaner air: ITS can help keep it that way – but it’s not going to be straightforward, as Graham Anderson discovers
  • Signal optimisation reduces congestion, improves travel times
    February 2, 2012
    The Metropolitan Government of Nashville and Davidson County's Department of Public Works(MPW) identified seven corridors in the County that experience heavy traffic congestion and needed traffic signal timing improvements to improve traffic flow as well as air quality and fuel consumption. The seven corridors included a total of 223 signalised intersections. To conduct this study, termed the Traffic Signal Optimisation Study for the Metro Nashville Signal System, MPW received funding from the Federal Conge