Skip to main content

Virtual traffic lights ‘can reduce commute times’

Researchers at Carnegie Mellon University (CMU) in the US claim to have found a solution to delays caused by traffic signals. They estimate that replacing physical traffic signals with virtual traffic signals could reduce urban commute times by 40 per cent. Electrical and Computer Engineering professor Ozan Tonguz’s research on virtual traffic lights uses connected vehicle technology, enabling vehicles to manage traffic control without infrastructure based traffic lights. Using the technology, virtua
January 16, 2015 Read time: 2 mins
Researchers at Carnegie Mellon University (CMU) in the US claim to have found a solution to delays caused by traffic signals. They estimate that replacing physical traffic signals with virtual traffic signals could reduce urban commute times by 40 per cent.

Electrical and Computer Engineering professor Ozan Tonguz’s research on virtual traffic lights uses connected vehicle technology, enabling vehicles to  manage traffic control without infrastructure based traffic lights.

Using the technology, virtual traffic lights will appear on the driver’s windshield as they approach an intersection. “When the driver is looking through the windshield, they’ll see that going straight is a green light, and turning right is a red light,” Tonguz explains. “It’s a seamless process, the driver does not get involved in this decision making.”  The virtual traffic light will turn off once the driver proceeds through the intersection.

Tonguz claims that virtual traffic lights will do more than lower commuter’s stress levels. He says they’ll mitigate traffic congestion, reduce commute times, decrease the carbon footprint of vehicles, and lead to a greener environment.

Related Content

  • IRD polishes WiM’s green credentials
    December 21, 2020
    A project in Canada is proving that Weigh in Motion can have a positive environmental impact, by helping to reduce emissions. Adam Hill looks at International Road Dynamics’ numbers
  • Big wheels keep on turnin’
    August 21, 2018
    Many of the great and the good in the global mobility sector gathered at this year’s Movin’ On event in Montreal. Measured regulation of technologies and safety issues were major themes, reports David Arminas. *Bibendum is the original name for the Michelin Man, the symbol of the Michelin tyre company Autonomous vehicles, platooning, smart intersections and safety – these were the talking points over two-and-a-half days of the Movin’ On event in Montreal, Canada. Everyone in the mobility sector is at the
  • Connected Vehicles test vehicle to vehicle applications
    January 19, 2012
    In the US, the ITS Joint Program Office is about to conduct a series of Driver Clinics intended to gauge public reaction to Connected Vehicle safety technologies and applications. Starting in August, the US Department of Transportation (USDOT) will test Vehicle-to-Vehicle (V2V) applications with everyday drivers in what it describes as 'normal operational scenarios'. These Driver Clinics are being carried out at six locations across the US and together with the subsequent model deployment beginning in 2012,
  • Qualcomm: V2X enhances safety, adding cloud connectivity informs services
    September 29, 2023
    Many of the fatalities that occur on roadways are preventable. The application of technology could eliminate or mitigate the severity of up to 80% of non-impaired crashes. Jim Misener Senior Director and V2X Ecosystem Lead of Qualcomm Technologies, Inc. explains how