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Discrete Traffic Flow

Ostermeyer G. P.

Machine Dynamics Problems

2004

Vol. 28, No. 2

23-36

Traffic flow is described usually on macro, meso or micro scales. This paper deals with a micro scale description of traffic, where some streets with at least two discrete cars are taken into account. The necessarily of traffic flow management is accepted but often there is to be seen a large gap between the controlled flows in mathematical models and reality. Main reason for this seems to be the effect of self organization in traffic flow. Nearly every control management system model is based on the interaction with drivers only. But the traffic flow is not only the sum of drivers. So self organization effects have to be understand and taken into account. This investigations starts rather long ago in macro traffic models, where car densities are described on street networks. In discrete car model systems these investigations just starts. One result is for instance the introduction of roundabout traffic. Actual questions of interest in such a discrete car traffic system are driver models with individual behavior able to drive cars in complex traffic flows in such a way, that self organization effects are generated by the complex interaction of the drivers. Here a model of driver interaction is presented and illustrated by an experimental realization of micro traffic flow in an down scaled world, where miniature cars in hardware are driven by radio control.