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Mathematical Analysis for Roundabout Capacity

机译：回旋能力的数学分析

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摘要

This paper investigates roundabout capacity analysis using mathematical modelling and microscopic simulation. The capacity in approach section in roundabout is calculated by estimating the number of vehicles that can enter a roundabout for a given approach given a certain circulating volume. Since roundabouts are working with only yield conditions, capacity is dependent on gap acceptance model. Priority rules are used to simulate the gap acceptance model and define the right-of-way for conflicting movements. In the case of roundabouts, priority rules can be utilized to establish right-of-way at each of the conflict points where the approach traffic merges with the circulating traffic of the roundabout. By altering the minimum acceptable gap and related parameters, it is possible to calibrate a simulationmodel to be that of a real-life roundabout or that of a theoretical roundabout that meets the operating characteristics defined in current capacity models. The proposed roundabout capacity analysis methodology is expected to assist modelling operational conditions for roundabouts. Results are presented that provide evidence to validate the proposed approach.
机译：本文研究了使用数学建模和微观模拟进行的环岛通行能力分析。回旋处进近段的通行能力是通过在给定的循环流量下估算给定进场可以进入回旋处的车辆数量来计算的。由于回旋处仅适用于屈服条件，因此通行能力取决于间隙接受模型。优先级规则用于模拟间隙接受模型并定义发生冲突的运动的通行权。在环形交叉路口的情况下，可以使用优先权规则在进场交通与环形交叉路口的环流交通合并的每个冲突点建立通行权。通过更改最小可接受间隙和相关参数，可以将模拟模型校准为满足当前通行能力模型中定义的运行特征的真实回旋处或理论回旋处。拟议的环岛通行能力分析方法有望帮助建模环岛的运行条件。提出的结果为验证所提出的方法提供了证据。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第6期|4310894.1-4310894.8|共8页
  • 作者

    Suh Wonho; Kim Jung In; Kim Hyunmyung; Ko Joonho; Lee Young-Joo;

  • 作者单位

    Hanyang Univ, Dept Transportat & Logist Engn, Ansan 15588, South Korea;

    Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA;

    Myongji Univ, Dept Transportat Engn, Yongin 17058, South Korea;

    Hanyang Univ, Grad Sch Urban Studies, Seoul 04763, South Korea;

    Ulsan Natl Inst Sci & Technol, Sch Urban & Environm Engn, Ulsan 44919, South Korea;

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