We present a method to automatically collect data about distance and speed of vehicles ahead of a car participating in highway traffic. The method should support the registration of traffic in front of a driving car over long periods of time in order to be able to detect over-persistent congestion (OPC) situations. The method requires no specialized devices; it is based on a simple video stream...

The Nagel-Schreckenberg traffic flow model shows a transition from a free flow regime to a jammed regime for increasing car density. The measurement of the dynamical structure factor offers the chance to observe the evolution of jams without the necessity to define a car to be jammed or not. Above the jamming transition the dynamical structure factor S(k, ω) exhibits for a given k-value two max...

By means of a novel variational approach we study ergodic properties of a model of a multi lane traac ow, considered as a (deterministic) wandering of interacting particles on an innnite lattice. For a class of initial conngurations of particles (roughly speaking satisfying the Law of Large Numbers) the complete description of their limit (in time) behavior is obtained, as well as estimates of ...

Universal characteristics of road networks and traffic patterns can help to forecast and control traffic congestion. The antipersistence of traffic flow time series has been found for many data sets, but its relevance for congestion has been overseen. Based on empirical data from motorways in Germany, we study how antipersistence of traffic flow time-series impacts the duration of traffic conge...

The ow of traac on a long section of road without entrances or exits can be modelled by continuum equations similar to those describing uid ow. In a certain range of traac density, steady ow becomes unstable against the growth of a cluster, or \phantom" traac jam, which moves at a slower speed than the otherwise homogeneous ow. We show that near the onset of this instability, traac ow is descri...

The stationary states of systems with many molecular motors are studied theoretically for uniaxial and centered (asterlike) arrangements of cytoskeletal filaments using Monte Carlo simulations and a two-state model. Mutual exclusion of motors from binding sites of the filaments is taken into account. For small overall motor concentration, the density profiles are exponential and algebraic in un...