Qián Chen, Shihua Li, Chengchuan An, Jingxin Xia et al.
This paper concerns the perimeter control problem in the oversaturated region. The road network system is a nonlinear system. However, the existing achievements in the perimeter control setting are obtained by partially linearizing the system model around the point of interest, which is a local line...
Feng Qiu, Wenquan Li, Chengchuan An
In this paper, Google mapping techniques are applied to develop a cost-efficient scheduling system for flex-route transit, which currently is the most popular type of flexible transit services. It is different from previous flexible transit scheduling systems which have to rely on geographic informa...
Qián Chen, Daniel Sun, Jingxin Xia, Xiufeng Liu et al.
Bo‐Hao Chen, Chengchuan An, Lin Sun, Jingxin Xia et al.
Vehicle trajectory is an emerging data source used in various applications. However, only a few vehicles can provide detailed trajectories, leaving the population vehicle trajectories unknown. Previous studies have successfully estimated macroscopic traffic states but may not estimate detailed vehic...
Rongrong Hong, Dong Zhou, Chengchuan An, Wenming Rao et al.
Traffic demand is the basis for urban traffic planning and management. Most studies focus on exploring the temporal-spatial pattern of traffic demand. Few studies have investigated traffic demand structure with field data, such as the ratio of commuting demand. The availability of automatic license ...
Yang He, Huan Liu, Yuheng Jia, Chengchuan An et al.
Siping Ke, Wenming Rao, Yinpu Wang, Huan Liu et al.
Minimizing bus waiting time and stops at intersections along arterials is essential for improving bus travel efficiency. Many methods have been proposed to achieve this goal by utilizing emerging connected technologies to provide bus speed guidance. However, most studies have only focused on traffic...
Lin Sun, Ruicheng Xiong, Chengchuan An, Zhenbo Lu et al.
Queue state information is the evaluation indicator and input information of signal control, which can reflect the intersection operation status. Previous queue state estimation studies based on trajectory data primarily focus on the modeling of the queue formation process, which will be affected by...
Yunqing Jia, Chengchuan An, Zhenbo Lu, Jingxin Xia
In practice, time-of-day (TOD) fixed timing is a common signal control strategy. To generate an efficient TOD interval partition with robust signal timings, this paper proposes a bi-level optimization framework in which the duration of each TOD interval and signal timings are the decision variables ...
Chen-Xi Xi, Hai‐Tian Huang, Zi-Zhuo Lin, Chengchuan An et al.
Estimation of saturation headway at signalized intersections is of vital importance for traffic supply measurement and signal timing optimization. Most previous studies either need manual participation in collecting label values or require dynamic or aggregated data (e.g., heavy vehicle and turning ...