Analysis of the Right-Turn Lane Capacity under the Influence of Pedestrians

Lu, Xiaojuan; Wang, Jianjun

doi:10.1061/9780784482292.217

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…While many studies have been conducted using gap acceptance models, Lu et al [12] quantitatively analyzed the capacity of the right-turn lane (right-hand traffic) using gap acceptance theory and found that the pedestrian volume has a significant impact on capacity. Viney et al [13] presented a model to calculate the saturation flow rate when vehicles are required to give way to pedestrian flow.…”

Section: Capacity Estimation Methods Based On Various Modelsmentioning

confidence: 99%

Left-Turn Lane Capacity Estimation based on the Vehicle Yielding Maneuver Model to Pedestrians at Signalized Intersections

Wang,

Zhang,

Nakamura

2024

Sustainability

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Crossing pedestrians may significantly affect the capacity of the left-turn (LT) lane at signalized intersections while sharing the same signal phase in the left-hand traffic system, the quantitative estimation method is still not intensively discussed when considering the vehicle yielding maneuver. Despite the Road Traffic Act in Japan mandating vehicles to yield to pedestrians, instances of vehicles crossing in front of pedestrians are frequent. This study aims to refine the evaluation of LT lane capacity by introducing a novel vehicle yielding maneuver model, considering factors such as pedestrian numbers, crosswalk length, and signal timing. The model, developed using data from various Japanese crosswalks, is subjected to Monte Carlo simulation for validation. Comparative analysis with existing methods in Japanese and U.S. manuals, along with observed data, highlights the effectiveness of our model. This innovative approach has the potential to mitigate vehicle–pedestrian conflicts and reduce air pollution. By incorporating techniques such as signal optimization and two-stage crossing, our model contributes to sustainability while maintaining efficient traffic flow.

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Section: Capacity Estimation Methods Based On Various Modelsmentioning

confidence: 99%

Left-Turn Lane Capacity Estimation based on the Vehicle Yielding Maneuver Model to Pedestrians at Signalized Intersections

Wang,

Zhang,

Nakamura

2024

Sustainability

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“…Their estimation of the pedestrian influence adjustment factor is mostly related with pedestrian volume. Lu et al [3] investigated the influence of pedestrians on the right-turn lane capacity (right-hand traffic system) by using the parking line method, acceptable gap theory, and video survey. Their results showed that the traffic volume of pedestrian has a significant impact on the traffic capacity of right turning motor vehicles.…”

Section: A Influence Of Pedestrians On Left Turn Lane Capacitymentioning

confidence: 99%

Estimation Method of Left Turn Lane Capacity Under the Influence of Pedestrians and Crosswalk Layout at Signalized Crosswalks

Emagnu

Zhang

Iryo-Asano

et al. 2021

Journal of Civil Engineering

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The left turn lane capacity is highly influenced by the presence of pedestrians under shared signal phasing. Pedestrian crossing time can be highly influenced by pedestrian platoon maneuver under the influence of traffic signal settings, crosswalk length and bidirectional interactions of pedestrian, due to that left turning vehicles movement may be significantly affected. However, existing capacity estimation methods of left turn lanes did not consider those factors. In addition, the influence of crosswalk layout did not properly consider in the existing methods and researches. This study aims to propose a method to estimate the left turn lane capacity, considering the characteristics of crossing pedestrians and crosswalk layout variations. Waiting pedestrian presence-time is estimated by applying pedestrian presence probability model. In addition, the left turning vehicles discharge flow rate under different crosswalk layout and pedestrian demand condition are investigated and modeled. The left turn lane capacity estimation equation is proposed by characterizing the observed discharge flow rate of left turning vehicles under the influence of crossing pedestrians. It was found that the proposed capacity estimation method can represent the realistic influence of pedestrians and crosswalk layout on the left turn lane capacity at signalized crosswalks.

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Analysis of the Right-Turn Lane Capacity under the Influence of Pedestrians

Cited by 2 publications

References 1 publication

Left-Turn Lane Capacity Estimation based on the Vehicle Yielding Maneuver Model to Pedestrians at Signalized Intersections

Left-Turn Lane Capacity Estimation based on the Vehicle Yielding Maneuver Model to Pedestrians at Signalized Intersections

Estimation Method of Left Turn Lane Capacity Under the Influence of Pedestrians and Crosswalk Layout at Signalized Crosswalks

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