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CNA Seminar/Colloquium/Joint Pitt-CNA Colloquium
Benjamin Seibold
Temple University
Title: Nonlinear waves in traffic flow, and the future of traffic modeling

Abstract: Initially homogeneous vehicular traffic flow can become inhomogeneous even in the absence of obstacles. In this ``phantom traffic jam'' phenomenon, small perturbations grow into traveling waves. We demonstrate that these waves, called ``jamitons'', can be described as nonlinear detonation waves in second-order macroscopic traffic models. We investigate the behavior of jamitons, in particular non-local aspects and their long-term evolution. Moreover, we discuss to which extent these undesirable features of collective human behavior could be dissipated, or prevented from arising, via future traffic control, in particular autonomous vehicles. We close with an outlook on how traffic flow will change in the years to come, and how this will affect traffic modeling.

Date: Tuesday, September 20, 2016
Time: 1:30 pm
Location: Wean Hall 7218
Submitted by:  Ian Tice