Reference
S. Lin, B. De Schutter, A. Hegyi, Y. Xi, and J. Hellendoorn, "On a
spatiotemporally discrete urban traffic model,"
IET
Intelligent Transport Systems, vol. 8, no. 3, pp. 219-231, May 2014.
Abstract
In order to control urban traffic with model-based control methods, a proper
traffic model is very important. This traffic control model needs to have
enough descriptive power to reproduce relevant traffic phenomena, and it also
has to be fast enough to be used in practice. Consequently, macroscopic urban
traffic flow models are usually applied as control models. In this paper, a
macroscopic spatiotemporally discrete urban traffic model with a variable
sampling time interval is proposed for model-based control strategies. By
selecting proper sampling time intervals and sampling space distances, it
allows to balance modeling accuracy and computational complexity of the
spatiotemporally discrete model. In addition, an urban traffic CFL
(Courant-Friedrichs-Lewy) condition is deduced for spatiotemporally discrete
urban traffic models, which is a sufficient condition to guarantee the discrete
model to bear enough descriptive modeling power to reproduce necessary traffic
phenomena. The model is analyzed and evaluated based on the model requirements
for control purposes. The simulation results are compared for the situations
that the CFL condition is violated and not violated.
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BibTeX
@article{LinDeS:14-006,
author = {Lin, Shu and De Schutter, Bart and Hegyi, Andreas and Xi, Yugeng
and Hellendoorn, Johannes},
title = {On a Spatiotemporally Discrete Urban Traffic Model},
journal = {IET Intelligent Transport Systems},
volume = {8},
number = {3},
pages = {219--231},
month = may,
year = {2014}
}