"By controlling the pace of the autonomous car in the study, they were able to smooth out the traffic flow for all the cars"

Using self-driving vehicles to regulate traffic flow

#Driving

Thu, May 11th, 2017 11:00 by capnasty NEWS

Phys brings to attention the research done by Daniel Work, assistant professor of civil environmental engineering at the University of Illinois, which indicates that a small number of self-driving vehicles sharing the road with human drivers can potentially "eliminate stop-and-go waves caused by human driving behavior."

The team conducted field experiments in Tucson, Arizona, in which a single autonomous vehicle circled a track continuously with at least 20 other human-driven cars. Under normal circumstances, human drivers naturally create stop-and-go traffic, even in the absence of bottlenecks, lane changes, merges or other disruptions, Work said. This phenomenon is called the "phantom traffic jam." Researchers found that by controlling the pace of the autonomous car in the study, they were able to smooth out the traffic flow for all the cars. For the first time, researchers demonstrated experimentally that even a small percentage of such vehicles can have a significant impact on the road, eliminating waves and reducing the total fuel consumption by up to 40 percent. Moreover, the researchers found that conceptually simple and easy to implement control strategies can achieve the goal.

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