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research article

Seeing the wood and the trees: simulation-based evaluation of the effect of variable speed limit signs on capacity and user safety

Torday, Alexandre
•
Bierlaire, Michel  
•
Dumont, André-Gilles
2002
Traffic technology international

This article describes how a simulation-based evaluation methodology was applied on a variable speed limit signs (VSLS) system designed for a heavily-traveled roadway around Lausanne, Switzerland. Using the MITSIM Laboratory, the evaluation focused on determining the impacts that variable speed limit signs would have on capacity, traffic flow and user safety. In evaluating the efficacy of the VSLS on capacity and congestion, no clear improvement in performance was shown. In terms of the impact on user safety, it was found that a decrease in speed limits for high flow levels and congestion near an intersection led to an increase in safety. However, simulations showed that in the case of an accident which greatly reduced roadway capacity, VSLS did not seem to improve network performance.

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Type
research article
Author(s)
Torday, Alexandre
•
Bierlaire, Michel  
•
Dumont, André-Gilles
Date Issued

2002

Published in
Traffic technology international
Volume

1

Start page

60

End page

64

Subjects

Sécurité

•

Société

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
TRANSP-OR  
LAVOC  
Available on Infoscience
June 15, 2009
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/40459
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