TY - GEN
T1 - Modelling follow up time at a single-lane roundabout
AU - Qu, Xiaobo
AU - Wang, Shuaian
AU - Liu, Zhiyuan
N1 - Conference code: 14th
PY - 2014
Y1 - 2014
N2 - 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 factor
AB - 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 factor
UR - http://ascelibrary.org/doi/pdf/10.1061/9780784413623.192
U2 - 10.1061/9780784413623.192
DO - 10.1061/9780784413623.192
M3 - Conference Paper
SN - 9780784413623
SP - 2002
EP - 2011
BT - CICTP 2014: Safe, Smart, and Sustainable Multimodal Transportation Systems: Proceedings of the 14th COTA International Conference of Transportation Professionals
A2 - Ma, Jianming
A2 - Yin, Yafeng
A2 - Huang, Helai
A2 - Pan, Difu
PB - American Society of Civil Engineers
CY - Reston VA USA
T2 - COTA International Conference of Transportation Professionals (CICTP) 2014
Y2 - 4 July 2014 through 7 July 2014
ER -