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

  • Tighten up on cyber security before hackers infiltrate ITS infrastructure
    October 19, 2015
    This year’s ITS World Congress in Bordeaux will have three sessions dedicated to cyber security and the issue will also be addressed under connected and automated vehicles categories. Jon Masters finds out why. American security researchers Charlie Miller and Chris Valasek attracted international press coverage recently when they demonstrated how they could hack into and take control of a vehicle from a remote laptop. While the implications are clearly serious for vehicle manufacturers, highway and transpor
  • Georgia DoT showcases its connectivity
    March 3, 2020
    Georgia DoT’s regional connected vehicle programme could be a model for the rest of the US. Adam Hill speaks to two men involved in making it a reality – and takes a look at the state’s first-ever Tech Showcase
  • Cellint measures speed and travel time without roadside infrastructure
    April 10, 2014
    Collecting speed and travel time data without using roadside infrastructure could offer new possibilities to cash-strapped road authorities. Streaming video may be useful for traffic controllers to monitor incidents and automatic number plate recognition may be required for enforcement, but neither are necessary for many ITS functions. For instance travel times, tailbacks, percentage of vehicles turning, origin and destination analysis can all be done using Bluetooth and/or WI-Fi sensors and without video o
  • From paved roads to data highways
    December 19, 2024
    The vehicles of the future are coming; and with them, so are the cities of the future. But only if cities are prepared to make the investment, suggests Yagil Tzur