Towards a practical application of model predictive control to
suppress shock waves on freeways
A. Hegyi,
M. Burger,
B. De Schutter,
J. Hellendoorn, and
T.J.J. van den Boom,
"Towards a practical application of model predictive control to
suppress shock waves on freeways," Proceedings of the
European Control Conference 2007 (ECC'07), Kos, Greece, pp.
1764-1771, July 2007.
We present the results of the application of model predictive control
(MPC) to a micro-simulation model with a scenario where shock waves
are present, and a micro-simulation model functions as a substitute
for the real-world traffic system. Shock waves emerge in most cases
from traffic jams at bottlenecks, propagate upstream on the freeway,
and can remain existent for a long time and distance. This increases
travel time, is potentially unsafe, and increases noise and air
pollution.
Previously reported results using MPC to eliminate shock waves, showed
an improvement of 20% of the total time that the vehicles spent in the
network. However, they were based on the assumption that the
simulation model (representing the real world) and the prediction
model are the same, which may have lead to overoptimistic results.
In this paper a micro-simulation model (Paramics 5.1 by Quadstone) is
used to represent the real world, which results in a model mismatch
between the simulation model and the prediction model. We show by
simulation that even in the case of a model mismatch the controller is
able to suppress or remove shock waves.
- Corresponding technical report:
pdf
file
(458 KB)
@inproceedings{HegBur:06-043,
author={A. Hegyi and M. Burger and B. {D}e Schutter and J. Hellendoorn and
T.J.J. van den Boom},
title={Towards a practical application of model predictive control to suppress
shock waves on freeways},
booktitle={Proceedings of the European Control Conference 2007 (ECC'07)},
address={Kos, Greece},
pages={1764--1771},
month=jul,
year={2007}
}
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