scholarly journals Car Delay Model near Bus Stops with Mixed Traffic Flow

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Yang Xiaobao ◽  
Huan Mei ◽  
Gao Ziyou
Keyword(s):  
Probability Theory ◽  
Traffic Flow ◽  
Queuing Theory ◽  
Delay Model ◽  
Mixed Traffic ◽  
Average Delay ◽  
Mixed Traffic Flow ◽  
Operation Conditions ◽  
Traffic Stream ◽  
Bus Stops

This paper proposes a model for estimating car delays at bus stops under mixed traffic using probability theory and queuing theory. The roadway is divided to serve motorized and nonmotorized traffic streams. Bus stops are located on the nonmotorized lanes. When buses dwell at the stop, they block the bicycles. Thus, two conflict points between car stream and other traffic stream are identified. The first conflict point occurs as bicycles merge to the motorized lane to avoid waiting behind the stopping buses. The second occurs as buses merge back to the motorized lane. The average car delay is estimated as the sum of the average delay at these two conflict points and the delay resulting from following the slower bicycles that merged into the motorized lane. Data are collected to calibrate and validate the developed model from one site in Beijing. The sensitivity of car delay to various operation conditions is examined. The results show that both bus stream and bicycle stream have significant effects on car delay. At bus volumes above 200 vehicles per hour, the curbside stop design is not appropriate because of the long car delays. It can be replaced by the bus bay design.

Mixed traffic flow modeling near Chinese bus stops and its applications

2012 ◽  
Vol 19 (9) ◽  
pp. 2697-2704 ◽  
Author(s):  
Xiao-bao Yang ◽  
Bing-feng Si ◽  
Mei Huan
Keyword(s):  
Traffic Flow ◽  
Mixed Traffic ◽  
Flow Modeling ◽  
Mixed Traffic Flow ◽  
Bus Stops

Analysis and Application of Delay Survey in Signalized Intersection

2014 ◽  
Vol 1030-1032 ◽  
pp. 2178-2181
Author(s):  
Meng Jiao Yang ◽  
Da Lin Qian ◽  
Yi Luo
Keyword(s):  
Traffic Flow ◽  
Signalized Intersection ◽  
Delay Analysis ◽  
Delay Model ◽  
Mixed Traffic ◽  
Mixed Traffic Flow ◽  
Control Delay ◽  
Actual Operation ◽  
The Common ◽  
Sample Method

This paper introduces the common methods of delay analysis in signalized intersection. Focuses on point sample method (PSM), and puts forward the improved point sample method (IPSM) that is easier to actual operation and accurate. Because the control delay takes the place of the stop delay and the statistics of period takes the place of the statistics of moment. Apply the IPSM and the HCM delay model to analysis delay of signalized intersection in Hohhot. It is a linear relationship between the two results. And the applicability of the IPSM is verified. The IPSM is more applicable and accurate to the mixed-traffic flow in China.

scholarly journals Road Capacity at Bus Stops with Mixed Traffic Flow in China

2009 ◽  
Vol 2111 (1) ◽  
pp. 18-23 ◽  
Author(s):  
Xiaobao Yang ◽  
Ziyou Gao ◽  
Xiaomei Zhao ◽  
Bingfeng Si
Keyword(s):  
Traffic Flow ◽  
Mixed Traffic ◽  
Mixed Traffic Flow ◽  
Road Capacity ◽  
Bus Stops

scholarly journals A Cellular Automata Traffic Flow Model considering Bus Lane Changing Behavior with Scheduling Parameters

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Zun-dong Zhang ◽  
Yan-fang Yang ◽  
Wenjiao Qi ◽  
Abderrahim Chariete ◽  
Xing-xiang Lin
Keyword(s):  
Cellular Automata ◽  
Traffic Flow ◽  
Flow Model ◽  
Flow Density ◽  
Mixed Traffic ◽  
Lane Changing ◽  
Traffic Flow Model ◽  
Mixed Traffic Flow ◽  
Bus Lane ◽  
Bus Stops

According to different driving behavioral characteristics of bus drivers, a cellular automata traffic model considering the bus lane changing behavior with scheduling parameters is proposed in this paper. Traffic bottleneck problems caused by bus stops are simulated in multiple lanes roads with no-bay bus stations. With the mixed traffic flow composed of different bus arrival rate, flow-density graph, density distribution graph, and temporal-spatial graph are presented. Furthermore, the mixed traffic flow characteristics are analyzed. Numerical experiment results show that the proposed model can generate a variety of complicated realistic phenomena in the traffic system with bus stops and provide theoretical basis for better using of traffic flow model.

scholarly journals Capacity Model for Single-Lane Minor Entry at Turbo-Roundabouts

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Andrea Kociánová
Keyword(s):  
Traffic Flow ◽  
Delay Model ◽  
Mixed Traffic ◽  
Traffic Flows ◽  
Mixed Traffic Flow ◽  
Traffic Lane ◽  
Unsignalized Intersections ◽  
Capacity Model ◽  
Traffic Volumes ◽  
The Right

Abstract Spirally arranged and physically separated traffic lanes in the circulatory carriageway of turbo-roundabouts force drivers to choose a particular entry lane and, subsequently, a circulatory traffic lane according to their intended destination. This specificity is taken into account in theoretical capacity models for two-lane turbo-roundabout entries typically evaluated by the lane-by-lane approach. Nevertheless, this specific path of movements is not considered in the most widely used capacity models for single-lane minor entries at oval turbo-roundabouts. In these models, only one entering traffic flow conflicted by two circulating traffic flows in front of the entry is considered. However, the entering traffic flow presents a mixed traffic flow of two movements (right-turning movement and left-turning and through movement) with different capacities due to different number of conflicting traffic streams and traffic volumes allocated into the outer and the inner circulatory lane. This fact is included in the capacity estimation for a single-lane minor entry presented in the article using the existing capacity formula for the mixed traffic flow on a shared minor lane at unsignalized intersections. The entry capacity reflects the proportion of the right-turning movement within a shared entry lane as well as the specific allocation of circulating traffic flow into the outer and the inner circulatory lane. This entry capacity is about 10 % to 30 % higher compared to a single-lane entry capacity estimated according to commonly used models described in the article. Higher entry capacity in a higher proportion of the right-turning traffic within mixed entry traffic flow is confirmed also by the results of average delays estimated by the theoretical delay model and microsimulation.

The influence of bus stop on traffic flow with velocity-difference-separation model

2016 ◽  
Vol 27 (11) ◽  
pp. 1650135 ◽  
Author(s):  
Pengjun Zheng ◽  
Wei Wang ◽  
Hongxia Ge
Keyword(s):  
Traffic Flow ◽  
Urban Traffic ◽  
Traffic Density ◽  
Mixed Traffic ◽  
Velocity Difference ◽  
Mixed Traffic Flow ◽  
Bus Stop ◽  
Traffic State ◽  
Bus Stops ◽  
Separation Model

Based on velocity-difference-separation model, the mixed traffic flow on two-lane road is investigated. For a fixed road length, the influence of bus and bus stops on traffic flow is studied with the increasing traffic density. Compared with the result without bus stops given by Li et al., a new traffic state is found, which is valuable for studying the impacts of public transport on urban traffic flow.

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