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  4. Sensitivity of risk indicators under motorway traffic regimes clustered by self-organizing map
 
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conference paper not in proceedings

Sensitivity of risk indicators under motorway traffic regimes clustered by self-organizing map

Pham, Minh-Hai  
•
de Mouzon, Olivier
•
Chung, Edward
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2008
7th European Congress and Exhibition on ITS, Geneva

In this paper, we present a method for determining motorway traffic regimes where the sensitivity of motorway crash risk indicators could be better understood. Motorway crashes are usually severe. If the crash risk could be monitored, it would be possible to prevent crashes or at least diminish their severity. Using risk indicators could be a way to grasp the crash risk. Under different traffic regimes, there should exist typical crash risk. Hence, risk indicators would better grasp the risk if they were considered under concrete traffic regimes. Traffic situations are pre-processed by Principle Component Analysis (PCA) before being clustered by the Self-Organizing Maps (SOM) into traffic regimes. The sensitivity of risk indicators are analyzed under each traffic regime. Real traffic data for 16 months was used for the analysis.

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Type
conference paper not in proceedings
Author(s)
Pham, Minh-Hai  
•
de Mouzon, Olivier
•
Chung, Edward
•
Dumont, André-Gilles  
Date Issued

2008

Subjects

Traffic engineering

•

ITS

•

safety indicator

•

risk indicator

•

traffic regime

•

traffic safety

•

Self-Organizing Maps

•

SOM

Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
LAVOC  
NEARCTIS
Event nameEvent placeEvent date
7th European Congress and Exhibition on ITS, Geneva

Geneva, Switzerland

June 4-6, 2008

Available on Infoscience
June 4, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/50660
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