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

  • Researchers test cost-effective vehicle automation
    April 17, 2013
    Researchers at Oxford University in the UK are testing a combination of off-the-shelf technology which could enable a car to drive itself for sections of a familiar route. Dr Ingmar Posner of the University’s mobile robotics group is part of a team working on the car which he believes could affordably reach the showrooms in ten or fifteen years.
  • Land Rover demonstrates remote-control Range Rover Sport
    June 18, 2015
    Jaguar Land Rover, part of the UK Autodrive consortium, has demonstrated a remote control Range Rover Sport research vehicle, showing how a driver could drive the vehicle from outside the car via their smartphone. The smartphone app includes control of steering, accelerator and brakes as well as changing from high and low range. This would allow the driver to walk alongside the car, at a maximum speed of 4mph, to manoeuvre their car out of challenging situations safely, or even to negotiate difficult off
  • Connected vehicles - potential to transform US transportation
    April 12, 2013
    There’s a new face in the driving seat at the US Department of Transport’s ITS Joint Program Office. Fortunately, as Robin Meczes finds out, he’s no learner driver… Ask Kenneth Leonard why he wanted his new job as director of the ITS Joint Program Office, and his answer comes back without a second’s delay. “The potential to save lives, reduce injuries and help people enjoy a more efficient transportation system is the kind of challenge that makes me want to come to work each morning,” he says. “In my opinio
  • Kapsch unveils Vienna traffic light app 
    November 19, 2021
    Grüne Welle Wien app is expected to save up to 15% emissions as traffic flow improves