virtual traffic lights

virtual traffic lights

Automated traffic lights. Virtual traffic lights (VTLs) may become a reality before self-driving cars are widespread as demonstrated by the Virtual Traffic Lights venture of Carnegie Mellon University in 2017. Using the IEEE 802.11p wireless standard, vehicles communicate their GPS locations, which combined with digital maps, makes one car the "leader." The leader assigns a red light to the direction it is heading and gives a green light to the perpendicular traffic. After a set amount of time, a leader is selected from the green light traffic, and the cycle starts over again. See 802.11p.

No Lights at All
The ultimate manifestation of virtual traffic lights is no physical lights. When self-driving cars and trucks are the only vehicles on the road, stopping and starting is expected to be automated entirely. See V2X and self-driving car.
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References in periodicals archive ?
Truckers using the Stena Line and Irish Ferry crossings directly to and from the UK are being encouraged to use a new app that has been specifically developed by the Irish government and its Revenue Commissioners to ease customs checks -- and by the time an incoming ferry reaches what is being described as virtual traffic lights at Tuskar Rock lighthouse some 10 km out at sea, the truck drivers should know whether they have been given green, orange or red notices for their respective loads.
The interface conveyed information to the driver which was based on the ubiquitous optimized management of individual intersections where physical devices were replaced by virtual traffic lights (VTL).
Ferreira, "In-vehicle virtual traffic lights: a graphical user interface," in Proceedings of the 2012 7th Iberian Conference on Information Systems and Technologies (CISTI), pp.
An algorithm, which directs traffic at busy junctions, was recently patented by Virtual Traffic Lights a company owned by the telecommunications researcher Ozan Tonguz from Carnegie Mellon University.
Sommer, "Advanced leader election for virtual traffic lights," ZTE Commun, vol.
The issue has been discussed for the first time in [9], proposing an adaptive traffic signal system based on car-to-car communication and the creation a virtual traffic light (VTL) controller.
Masini, "A distributed virtual traffic light algorithm exploiting short range V2V communications," Ad Hoc Networks, vol.
D'Orey, "On the impact of virtual traffic lights on carbon emissions mitigation," IEEE Transactions on Intelligent Transportation Systems, vol.
Ferreira, "In-vehicle virtual traffic lights, a graphical user interface," in Proceedings of the 7th Iberian Conference on Information Systems and Technologies, pp.
We previously proposed an in-vehicle traffic light based on the application of vehicular communications, displaying virtual traffic light information inside vehicles to assist drivers in safely crossing priority-controlled unsignalized intersections [2, 3].
Given the application of vehicular communications, a novel concept of providing virtual traffic light information on the windshield has been presented [13, 14].

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