Hauptseite > Publikationsdatenbank > White and relaxed noises in optimal velocity models for pedestrian flow with stop-and-go waves |
Journal Article | FZJ-2016-02171 |
;
2016
IOP Publ.
Bristol
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Please use a persistent id in citations: http://hdl.handle.net/2128/10147 doi:10.1088/1751-8113/49/18/185101
Abstract: A class of microscopic stochastic models is proposed to describe 1D pedestrian trajectories obtained in laboratory experiments. The class contains continuous first-order models that are based on statistically calibrated optimal velocity functions. More specifically, we consider a model with an additive white noise and another one where the noise is determined by the inertial Ornstein–Uhlenbeck process. Simulation results show that both stochastic models give a good description of the characteristic relation between speed and spacing (fundamental diagram) and its variability. However, only the inertial noise model can reproduce the observed stop-and-go waves, bimodal speed distributions, and non-zero speed or spacing autocorrelations. This allows us to identify minimal microscopic stochastic mechanisms for the emergence of stable traffic waves.
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