Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts

The operations of multilane roundabouts, especially three-lane roundabouts, are unique and more complicated than any other type of roundabouts. This study aims to analyze driver behavior and estimate the critical gap at three-lane roundabouts. Video data were collected at two roundabouts. The analys...

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Main Authors: Khaled Shaaban, Hassan Hamad
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Journal of Advanced Transportation
Online Access:http://dx.doi.org/10.1155/2018/1350679
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author Khaled Shaaban
Hassan Hamad
author_facet Khaled Shaaban
Hassan Hamad
author_sort Khaled Shaaban
collection DOAJ
description The operations of multilane roundabouts, especially three-lane roundabouts, are unique and more complicated than any other type of roundabouts. This study aims to analyze driver behavior and estimate the critical gap at three-lane roundabouts. Video data were collected at two roundabouts. The analysis identified a pattern of group gap acceptance, where vehicles entering the roundabout from different lanes moved in groups during the same gap. In this case, the decision of vehicles entering from outside lanes greatly depended on the gap acceptance decision of vehicles in the inside lane. Analysis showed that the vast majority of the vehicles accept the gap in groups and the critical gap was estimated accordingly. The study provides a new explanation for the operation at multilane roundabouts. The use of this simple method is recommended when estimating critical gaps for multilane roundabouts.
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institution Kabale University
issn 0197-6729
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language English
publishDate 2018-01-01
publisher Wiley
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series Journal of Advanced Transportation
spelling doaj-art-8a754ed054e7445ba06e1e08af24b5502025-02-03T05:53:59ZengWileyJournal of Advanced Transportation0197-67292042-31952018-01-01201810.1155/2018/13506791350679Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane RoundaboutsKhaled Shaaban0Hassan Hamad1Department of Civil Engineering, Qatar University, P.O. Box 2713, Doha, QatarDepartment of Civil Engineering, Qatar University, P.O. Box 2713, Doha, QatarThe operations of multilane roundabouts, especially three-lane roundabouts, are unique and more complicated than any other type of roundabouts. This study aims to analyze driver behavior and estimate the critical gap at three-lane roundabouts. Video data were collected at two roundabouts. The analysis identified a pattern of group gap acceptance, where vehicles entering the roundabout from different lanes moved in groups during the same gap. In this case, the decision of vehicles entering from outside lanes greatly depended on the gap acceptance decision of vehicles in the inside lane. Analysis showed that the vast majority of the vehicles accept the gap in groups and the critical gap was estimated accordingly. The study provides a new explanation for the operation at multilane roundabouts. The use of this simple method is recommended when estimating critical gaps for multilane roundabouts.http://dx.doi.org/10.1155/2018/1350679
spellingShingle Khaled Shaaban
Hassan Hamad
Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
Journal of Advanced Transportation
title Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
title_full Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
title_fullStr Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
title_full_unstemmed Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
title_short Group Gap Acceptance: A New Method to Analyze Driver Behavior and Estimate the Critical Gap at Multilane Roundabouts
title_sort group gap acceptance a new method to analyze driver behavior and estimate the critical gap at multilane roundabouts
url http://dx.doi.org/10.1155/2018/1350679
work_keys_str_mv AT khaledshaaban groupgapacceptanceanewmethodtoanalyzedriverbehaviorandestimatethecriticalgapatmultilaneroundabouts
AT hassanhamad groupgapacceptanceanewmethodtoanalyzedriverbehaviorandestimatethecriticalgapatmultilaneroundabouts