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

  • June 8, 2015
    Sprawl spreads the costs and confines the benefits
    A new report says car-centric planning leads to inefficient cities and divided communities as lead author Todd Litman explains. Between 1950 and 2050 the human population will have approximately quadrupled and shifted from 80% rural to nearly 80% urban; by the middle of this century the United Nations predicts an additional 2.2 billion urban residents in developing countries than there are today. How these cities grow has huge economic, social and environmental impacts and implementing proper policies can c
  • May 8, 2015
    Joined-up thinking for future ITS
    David Crawford looks at a US model which, for modest federal funding, is producing substantive results. Outward and upward is the clear message emerging from the US$458,000, 2015 workplan of the US government’s ENTERPRISE (Evaluating New TEchnologies for Roads PRogram Initiatives in Safety and Efficiency) joint funding scheme for ITS research.
  • August 25, 2016
    HERMES Study provides guidance for forward ITS thinking in Finland
    Having authored HERMES, a major study for the Finnish Ministry of Transport and Communication, Josef Czako talks to ITS International about his findings and lessons for other authorities. When CEOs of major automakers are predicting more change in the next five years than in the past 50, what is the role of national authorities considering the benefits of innovations in ITS?
  • May 5, 2021
    Waze shares data to help Calgary traffic flow
    Canadian city will use Waze programme to harness real-time insights and ease congestion