Modelling follow-up time at a single-lane roundabout

Xiaobo Qu, Shuaian Wang, Zhiyuan Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The follow-up time is an important parameter for estimating the entry capacity of roundabouts. However, its variability and contributing factors have long been ignored in the literature. In this study, 171 follow-up samples and contributing factors (traffic volume, vehicle position, waiting vehicles behind, vehicle type, and drivers'gender) are collected at a roundabout in Pacific Pines, Australia. It is found that the follow-up time is indeed significantly affected by traffic volume, waiting vehicles behind, vehicle type, and drivers'gender. In order to establish the relationship between follow-up time and its contributing factors, an inverse Gaussian regression model is further developed. This relationship could be applied to estimate the entry capacities by taking into account the variability of follow-up samples. According to the model, the traffic volume and vehicle types are the most important contributing factors.
Original languageEnglish
Title of host publicationCICTP 2014
Subtitle of host publicationSafe, Smart, and Sustainable Multimodal Transportation Systems - Proceedings of the 14th COTA International Conference of Transportation Professionals
PublisherAmerican Society of Civil Engineers (ASCE)
Pages2002-2011
Number of pages10
ISBN (Print)9780784413623
DOIs
Publication statusPublished - 1 Jan 2014
Externally publishedYes
Event14th COTA International Conference of Transportation Professionals: Safe, Smart, and Sustainable Multimodal Transportation Systems, CICTP 2014 - Changsha, China
Duration: 4 Jul 20147 Jul 2014

Conference

Conference14th COTA International Conference of Transportation Professionals: Safe, Smart, and Sustainable Multimodal Transportation Systems, CICTP 2014
CountryChina
CityChangsha
Period4/07/147/07/14

Keywords

  • critical gap
  • follow up time
  • Roundabout capacity

ASJC Scopus subject areas

  • Transportation

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