
Digital Library of the
European Council for Modelling and Simulation 
Title: 
SimulationBased Heuristic Optimization Of A Traffic Systems 
Authors: 
Jaroslav Sklenar, Zdislav Beranek, Pavel Popela 
Published in: 
(2009).ECMS
2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel
Pedrera. European Council for Modeling and
Simulation. doi:10.7148/2009 ISBN: 9780955301889 23^{rd}
European Conference on Modelling and Simulation, Madrid, June
912, 2009 
Citation
format: 
Sklenar, J., Beranek,
Z., & Popela, P. (2009). SimulationBased
Heuristic Optimization Of A Traffic Systems. ECMS
2009 Proceedings edited by J. Otamendi, A. Bargiela, J. L. Montes, L. M. Doncel Pedrera (pp.
315321). European Council for Modeling and Simulation. doi:10.7148/200903150321 
DOI: 
http://dx.doi.org/10.7148/200903150321 
Abstract: 
This
paper deals with nonlinear optimization of a stochastic system via simulation
and a heuristic algorithm. These tools are used for optimization of the time
parameters of the traffic lights of three junctions at Konečného
square in Brno, Czech Republic, in order to reach maximum possible
throughput. The objective is to minimize average waiting time in the system
that might be described as an open queuing network. This is done in two
steps: building a simulation model of Konečného
square in Java using SSJ (Stochastic Simulation in Java  a Java library for
stochastic simulation) and implementing a heuristic algorithm Simulated
Annealing that is using the simulation model for optimization. After a brief
description of the traffic system, its mathematical and simulation models are
introduced. Then the way of getting input data is discussed as well as
verification and validation of the simulation model. The results of an
optimization based on Simulated Annealing are shown and interpreted in the
last part of the paper. Another contribution of building the simulation model
is evaluating the effect of implementing the preference given to public
transportation. 
Full
text: 