Inter-Vehicle Communication on Freeways: Statistical Properties of Information Propagation in Ad-Hoc Networks

Martin Schönhof, Arne Kesting, Martin Treiber and Dirk Helbing
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Martin Schönhof: Technische Universität Dresden, Institute for Transport & Economics
Arne Kesting: Technische Universität Dresden, Institute for Transport & Economics
Martin Treiber: Technische Universität Dresden, Institute for Transport & Economics
Dirk Helbing: Technische Universität Dresden, Institute for Transport & Economics

A chapter in Traffic and Granular Flow’05, 2007, pp 645-655 from Springer

Abstract: Summary The function of adaptive cruise control (ACC) systems can be enhanced by information flows between equipped cars, i.e., by upstream transmission of messages about the current traffic situation. Message transport within one driving direction is obviously rather restricted for small percentages of equipped cars due to the limited broadcast range. Thus, we consider vehicles in the opposite driving direction as possible relay stations. Analytical results based on a Poisson approximation, which are in accordance with empirical traffic data, show the efficiency and velocity of information propagation based on transversal message hopping. The obtained propability distributions of the transmission times are compared with numerical results of microscopic traffic simulations. By simulating the formation of a typical traffic jam, we show how information about distant bottlenecks and jam fronts reaches upstream equipped cars, which then can optimize their driving strategies.

Keywords: Relay Station; Adaptive Cruise Control; Message Propagation; Drive Direction; Poisson Approximation (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1007/978-3-540-47641-2_63

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