Imagine two avenues that intersect at right angles, an endless stream of vehicles on each of them. Two streams which cross without that no car stops and especially without any suspension. Cars intersect without suddenly, as if by miracle. A miracle, not quite. The speed of each vehicle is governed by an algorithm on which work researchers at Oak Bridge, the great American Research Center. Andreas Malikopoulos, Director of the Urban Dynamics Institute considers that, via communications V2V (vehicle to vehicle) and V2I (vehicle to Infrastructure) will be able to indicate to drivers what speed RTR to pass red lights… without raising the foot.
Decentralized algorithms estimate the ideal speed of each vehicle
143 hours and 36 minutes, it is the time lost each year by a french motorist in traffic jams. A loss of time, petrol and wear for vehicles whose cost was estimated at 17 billion euros for the year 2013. In the United States, even finding. In 2011, the Americans reportedly lost 5.5 billion hours trapped in traffic, 121 billion dollars of gasoline flew.
The idea of Andreas Malikopoulos is to synchronize the traffic of the vehicles indicating to drivers what speed drive and what direction take to avoid traffic jams formed at any time. The first phase of this research project is the development of control algorithms. Indeed, the researcher considers impossible all vehicles of a city can for example be guided remotely by a central algorithm. Thus setting it on an architecture decentralized, with synchronized local algorithms. The approach will be validated by simulation, then tested on actual traffic data.
Autonomous cars could implement such an approach
The approach is probably mathematically possible but nevertheless seems terribly theoretical. It suffices to note the insubordination of french motorists to measures of traffic on motorways to doubt the effectiveness of such tools. There is no doubt that if a significant proportion of motorists does not bend to the guidelines of the “great software”, the systems will quickly turn to disaster. As do turn such an algorithm in Cairo, in Shanghai or… Paris is for the less optimistic. May need to wait the generalization dess autonomous cars in traffic to expect ‘drivers’ sufficiently docile to obey blindly the instructions. Maybe then the traffic jams will decrease.
Translation : Bing Translator
“Computational framework for optimizing traffic flow could be the beginning of a road revolution”, Communiqué de les Oak Ridge Nationa Laboratories, April 2, 2015
“17 milliards d’euros perdus dans les embouteillages en France en 2013”, Science&Vie, October 15, 2014