American Society of Civil Engineers


Analysis and Modeling of Crossing Behavior at Urban Intersections in China


by Yongjian Xiao, Ph.D., (Student, School of Electrical Engineering, Xi’an Jiaotong Univ., Xi’an 710049, China. E-mail: mcguirexiao@163.com), Qiwu Ran, Ph.D., (Student, School of Electrical Engineering, Xi’an Jiaotong Univ., Xi’an 710049, China. E-mail: ranqiwu@mail.xjtu.edu.cn), Jianguo Yang, (corresponding author), (Professor, School of Electrical Engineering, Xi’an Jiaotong Univ., Xi’an 710049, China E-mail: yjg@mail.xjtu.edu.cn), and Zhaoan Wang, (Professor, School of Electrical Engineering, Xi’an Jiaotong Univ., Xi’an 710049, China. E-mail: zawang@mail.xjtu.edu.cn)

Journal of Transportation Engineering, Vol. 137, No. 2, February 2011, pp. 121-127, (doi:  http://dx.doi.org/10.1061/(ASCE)TE.1943-5436.0000201)

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Document type: Journal Paper
Section Heading: Transportation Systems
Abstract: Crossing behaviors at intersections are conventionally described through the gap acceptance theory; however, many gap-forcing behaviors exist at Chinese urban intersections. In this study, gap-forcing behaviors were analyzed and modeled from the perspective of conflict avoidance using a new modeling methodology called virtual field graph. After providing the definition of the preemptive status and the method to calculate the preemptive level, a new driving behavior model that differentiates from the conventional gap acceptance model was established. Analysis of collected field conflict data indicates that 82.2% of drivers’ decisions are normal decisions, while 17.8% are abnormal decisions. This suggests that there should be a physiological critical preemptive level while the drivers are making decisions. The driving population’s critical preemptive level was calibrated with the collected field conflict data through the logistic regression method and maximum likelihood approach.


ASCE Subject Headings:
Traffic management
China
Intersections

Author Keywords:
Traffic engineering
Preemptive level
Field graph
Gap acceptance