Proposal of a New Global Model of Consistency: Application in Two-Lane Rural Highways in Spain
Publication: Journal of Transportation Engineering
Volume 140, Issue 8
Abstract
Consistency is the relationship between the geometric characteristics of a highway and the conditions a driver expects to encounter. In this study, based on operating speed, consistency was calculated in two-lane rural highways of the province of Granada, Spain. Three consistency measures were calculated for 506 homogeneous road sections: the relative area, which represents the area bounded by the speed profile and average speed of a road segment; the standard deviation of the operating speed in each design element along the road segment; and a consistency model based on the previous measures introduced. Some discrepancies regarding the obtained results lead the authors to propose a new model of consistency that overcomes the identified disagreements.
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Acknowledgments
The support from the Spanish Ministry of Economy and Competitiveness (Research Project TRA2012-37823), co-funded with FEDER, is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 140 • Issue 8 • August 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 28, 2013
Accepted: Mar 3, 2014
Published online: Apr 28, 2014
Published in print: Aug 1, 2014
Discussion open until: Sep 28, 2014
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