Skip to main content

Unlocking Toronto’s gridlock

A project by University of Toronto professor of civil engineering Professor Baher Abdulhai marries cameras with computers to create traffic lights that can measure vehicle flow, understand what it means, and adapt signal patterns to reduce gridlock. “We want the traffic light to learn from experience,” explained Prof. Abdulhai, who is principal investigator on the University of Toronto project, dubbed Marlin, and an expert in intelligent transportation systems (ITS). “In the Toronto experiment we cut down d
March 26, 2013 Read time: 2 mins
A project by University of Toronto professor of civil engineering Professor Baher Abdulhai marries cameras with computers to create traffic lights that can measure vehicle flow, understand what it means, and adapt signal patterns to reduce gridlock.

“We want the traffic light to learn from experience,” explained Prof. Abdulhai, who is principal investigator on the University of Toronto project, dubbed Marlin, and an expert in intelligent transportation systems (ITS).

“In the Toronto experiment we cut down delays by forty per cent, on average.”

This work is part of a broader recognition that something has to be done about gridlock that threatens to paralyse the city. Congestion causes drivers some of the worst commute times in North America and, according to the Toronto Region Board of Trade estimate, is costing the economy US$5.8 billion annually.

The search for solutions has been part of a series of public discussions by transit organisation 6394 Metrolinx, which is seeking ideas on how to fund the next generation of transit expansion.

“Some congestion is a sign of vibrancy,” says Prof. Abdulhai in the draft of an upcoming report for the Residential and Civil Construction Alliance of Ontario, “but too much congestion has many negative consequences. The good news is that there are plenty of approaches to address congestion, traditional and non-traditional, technical and non-technical.”

For more information on companies in this article

Related Content

  • Auckland reduces airport journey times
    April 16, 2018
    Getting from the centre of Auckland to the city’s airport used to be fraught with unwanted stress for passengers – but a new system combining radar, Bluetooth and Wi-Fi is smoothing things over. Andrew Stone investigates. Struggling to cope with steady growth in passenger numbers and the costly traffic congestion which that can entail, New Zealand’s Auckland International Airport has deployed an innovative system that is smoothing traffic and passenger flows. The same system is also offering new, data-led
  • Vendor's eye view of US economic stimulus programme
    March 12, 2012
    Pete Goldin explores the impact of the US economic stimulus programme on the ITS industry from the ITS vendor perspective
  • New York's congestion charging scheme is finally underway
    January 6, 2025
    First US city to introduce such a scheme: drivers now pay $9 per day
  • Jenoptik measures out the future
    June 15, 2022
    The speed of tech changes means Jenoptik is redrawing how it sees itself. Adam Hill catches up with Stefan Traeger and Kevin Chevis at Intertraffic Amsterdam to find out more about ‘extended reality’…