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conference paper not in proceedings

A Multi-Dimensional Analysis of Hard Shoulder Running Systems

Samoili, Sofia  
•
Efthymiou, Dimitrios  
•
Antoniou, Constantinos
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2014
93nd Annual Meeting of the Transportation Research Board

The use of Hard Shoulder Running (HSR) systems is a relatively recent control policy aiming to ameliorate traffic conditions in recurrent congested networks. This ITS strategy attracts researchers and practitioners interest, in an attempt to assess its impact on drivers’ behavior. The objective of this study is to analyze and optimize the operation of an HSR system from multiple perspectives: traffic, behavioral and economic. The analysis is performed at a freeway segment equipped with the aforementioned managed lane system between Lausanne and Geneva in Switzerland. Using traffic data collected from radar sensors, segmented/piecewise linear models are first developed to analyze free-flow or dense regimes and congested, followed by an estimation of short-term left-lane flow distribution ratio (LLFDR) models, aiming to provide timely hard shoulder activation. Ordered probit models are then specified using data collected by a road-side survey, to model the satisfaction of the freeway users about the HSR system. The results suggest that younger (<30 years old) and frequent users (>4 times/week) of the particular road segment are the most satisfied. An economic analysis follows, identifying the benefits of the system. An economic evaluation of the managed lane system is then performed to assess the benefits –or costs– of the system since the beginning of its operation.

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Type
conference paper not in proceedings
Author(s)
Samoili, Sofia  
•
Efthymiou, Dimitrios  
•
Antoniou, Constantinos
•
Dumont, André-Gilles  
Date Issued

2014

Subjects

Managed lanes

•

hard shoulder running

•

satisfaction variable

•

lane-flow distribution ratio

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAVOC  
TRANSP-OR  
Event nameEvent placeEvent date
93nd Annual Meeting of the Transportation Research Board

Washington D.C., USA

January 12-16, 2014

Available on Infoscience
March 17, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/101881
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