26–30 Jun 2023
Sloup v Čechách
Europe/Prague timezone

On the origin of supercompressible states of the traffic flow

27 Jun 2023, 11:40
20m

Speaker

Mrs Michaela Krbálková (Faculty of Transport Engineering, University of Pardubice; Faculty of Science, University of Hradec Králové)

Description

Studying recent empirical traffic data, we show surprising statistical anomalies in the traffic microstructure that can not be explained by current scientific approaches used in physics of traffic. We introduce the concept of Balanced Particle Systems as an effective mathematical instrument for a description of statistical properties of vehicular microstructure, quantify these anomalies mathematically and explain their cause. Concretely we deal with the specific states of traffic flow on a two-lane freeway, in which statistical fluctuations of microscopic quantities are significantly higher than in systems with absolutely random events (Poisson systems). Finally, we show that these super-random states are detected specifically in the fast lane at free-flow traffic quantities (up to 25 vehicles per kilometer).

Primary author

Milan Krbálek (Dept Math, FNSPE CTU in Prague)

Co-author

Mrs Michaela Krbálková (Faculty of Transport Engineering, University of Pardubice; Faculty of Science, University of Hradec Králové)

Presentation materials