Capacity Model of Exclusive Right-Turn Lane at Signalized Intersection considering Pedestrian-Vehicle Interaction

Yang, Chengcheng; Wang, Jiawen; Dong, Jieshuang

doi:10.1155/2020/1534564

Cited by 8 publications

(6 citation statements)

References 16 publications

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“…Because different yielding rates will obviously affect the setting conditions of EPP, it is necessary to establish a model to estimate the yielding rate of different intersections. In the existing studies, Yang et al [24] has established a pedestrianvehicle interaction (PVI) model that can estimate the yielding rate at different intersections. In this study, the authors assume that the decision-making of vehicle and pedestrian is independent of each other when interactions occur.…”

Section: Preliminaries: Pedestrian-vehicle Interaction Modelmentioning

confidence: 99%

“…In practice, the yielding rate can be estimated for a given intersection [24]. e simulation is carried out in the case of vehicle yielding rates of 0.75, 0.50, and 0.25, respectively, and 10 times simulation are conducted for each yielding rate before and after setting EPP, respectively.…”

Section: Calibration Of the Pedestrian Ca Modelmentioning

confidence: 99%

“…is paper cited data from YANG's paper [24] on the impact of crossing pedestrians on right-turn capacity. Other data used to support the findings of this study are included within the paper.…”

Section: Data Availabilitymentioning

confidence: 99%

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Conditions for Setting Exclusive Pedestrian Phases at Two-Phase Signalized Intersections considering Pedestrian-Vehicle Interaction

Wang

Yang

Zhao

2021

Journal of Advanced Transportation

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In order to analyze the effectiveness of setting exclusive pedestrian phase (EPP) under different vehicle yielding rates, the effect of EPPs on traffic efficiency is studied and a setting condition of EPP considering pedestrian-vehicle interaction is proposed in this paper. First, the main factors influencing the behavior of vehicles and pedestrians during pedestrian-vehicle interaction are analyzed, and a pedestrian-vehicle interaction (PVI) model at the crosswalk of urban road is established. Second, assuming that vehicle arrival obeys the Poisson distribution, the delay models of vehicle passengers and pedestrians crossing the street at the intersection are established, and taking the total delay of traffic participants as the main index, the setting condition of EPP are proposed. Third, based on the video of pedestrian-vehicle interaction at crosswalks, the parameters of the proposed model are calibrated. Through sensitivity analysis, the change of the total delay of traffic participants is analyzed under different conditions of pedestrian and vehicle arrival rates. Finally, by introducing pedestrian-vehicle interaction rules, a cellular automata (CA) simulation platform of pedestrian-vehicle interaction in crosswalk is established; based on the field data of Shanghai, a simulation model of intersection is established, and the total delay, queue length, and vehicle throughput under conventional signal control plan and EPP plan are compared. The results show that the pedestrian-vehicle interaction process has a great influence on the total delay of traffic participants at intersections, and pedestrian-vehicle interaction should be considered in the setting conditions of EPP. Under the same condition of vehicular flow, the more the pedestrian flow is, the smaller the delay increment will be. The higher the vehicle yielding rate is, the smaller the delay increment will be after setting EPP.

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Section: Preliminaries: Pedestrian-vehicle Interaction Modelmentioning

confidence: 99%

Section: Calibration Of the Pedestrian Ca Modelmentioning

confidence: 99%

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Conditions for Setting Exclusive Pedestrian Phases at Two-Phase Signalized Intersections considering Pedestrian-Vehicle Interaction

Wang

Yang

Zhao

2021

Journal of Advanced Transportation

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“…Capacity of streets with controlled motion is maximal value of traffic intensity in one direction on road section [6][7][8]. It (capacity) is one of the main parameters that characterize movement conditions of traffic flow.…”

Section: Analysis Of Recent Research and Publicationsmentioning

confidence: 99%

Capacity increasing of arterial streets with controlled motion

Hrytsun¹,

Bura²

2021

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The problem of capacity increasing of arterial streets with controlled motion is investigated in this paper. For investigation, sections between intersections on the road network of Lviv city were chosen at their different length and roadway width with most saturated traffic. Methods of capacity increasing of arterial streets with controlled motion and factors that have impact on the capacity reduction are analyzed. Capacity of intersections at different volume-capacity ratios is determined. The distribution of average speed for sections between intersections of different length is built. It is established that on sections of medium length between signalized intersections and the high volume-capacity ratio, the speed of traffic flow does not reach maximum values. It is possible to increase the speed and the capacity of sections between intersections by increasing their length, sufficient for flow acceleration to the maximal constant speed and further braking before the intersection. To determinate the recommended speed of movement on arterial directions, road conditions are taken into account, which are formed with simultaneous impact of several factors: volume-capacity ratio of intersection in braking zone, volume-capacity ratio of intersection in acceleration zone, the number of lanes, the length of the section between intersections and the average speed of the traffic flow. It is determined that the average speed of traffic flow on short sections between intersections (the length less than 300 m) is 27 – 33 km/h, on sections of medium length – 35 – 38 km/h/ Such speed will allow to traffic flow reaching the line of constant movement in given road conditions. Conducted research allows taking into account road traffic conditions while justifying the calculating speed of traffic flow, in result of which capacity of arterial streets of controlled motion increases.

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“…The entire road network's operational efficiency is determined by the intersectional traffic efficiency [1]. Therefore, the correct assessment of intersection capacity is of great significance for traffic planning, operational assessment, and intersection management [2].…”

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confidence: 99%

Intersection Outlet Saturation Flow Rate (OSFR) Considering Game Behavior Within Intersection

Zhang

2022

IEEE Access

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Most congestion occurs at intersections. Increasing the intersection capacity is crucial to alleviate the congestion. Saturation flow rate (SFR) is the basis for capacity calculation. SFR depends on many factors, and the guidelines sketched in the highway capacity manual can be applied. Most SFR are defined at the stop-line. The vehicles depart from the stop-line, enter the intersection, and exit from the outlet of the intersection. In a congestion scenario, vehicles would compete with each other before leaving the intersection and even get stuck within the intersection. The flow rate at the outlet thus decreased, and as a result, the theoretical capacity based on conventional SFR cannot be achieved. The manuscript defines a concept called OSFR (outlet saturation flow rate) to reflect the influence of the game behavior at the outlet and proposes a model that generates the OSFR. The model divides the vehicle's movement into three parts: departure from the stop-line, drive along its trajectory, and finally exist from the outlet with game behavior with other drivers. A game model for outlet lane-choosing is proposed. Based on empirical data, the stopline headway distribution model, speed model, and payoff function involved in the model were calibrated. The results show that the proposed model can generate real-world OSFR distributions. This model can effectively describe the invisible interaction between vehicles and can be used to get the outlet headway distribution in the case of mismatched lanes number. INDEX TERMS Headway, Speed model, Game theory, Intersections I. INTRODUCTION

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Capacity Model of Exclusive Right-Turn Lane at Signalized Intersection considering Pedestrian-Vehicle Interaction

Cited by 8 publications

References 16 publications

Conditions for Setting Exclusive Pedestrian Phases at Two-Phase Signalized Intersections considering Pedestrian-Vehicle Interaction

Conditions for Setting Exclusive Pedestrian Phases at Two-Phase Signalized Intersections considering Pedestrian-Vehicle Interaction

Capacity increasing of arterial streets with controlled motion

Intersection Outlet Saturation Flow Rate (OSFR) Considering Game Behavior Within Intersection

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