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Research on the Applicability of Different Kinds of Exit and Entrance Combination Modes on Urban Expressway

机译：不同类型的出入口组合方式在城市高速公路上的适用性研究

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The weaving segment on urban expressway is the bottleneck for the traffic operation, which impacts on the capacity of expressway and the side road of expressway. With different kinds of exit and entrance combinations, the position of weaving segment is changed. This paper takes entrance-exit and exit-entrance modes as subject, identifies its influence on expressway and the side road of expressway, and explores its applicability with different merging and diverging's ratios with the designed service volume. Firstly, we extract the traffic parameters, traffic volume, and spot speed, from the video recorded on the Fourth Ring in Beijing using the software of traffic analysis and the vehicle counter coded by visual basic. Secondly, with the geometric characteristics of roadway, this paper establishes and calibrates the VISSIM simulation model and extracts the volume, spot speed, delay, the queue length at the exit and entrance, and the travel time of mainline and the side road as evolution indices. Finally, this study establishes DEA/AHP model to explore the applicability of different kinds of exit and entrance combination modes. The results will be useful for exit and entrance design of expressway.
机译：城市高速公路的交织路段是交通运营的瓶颈，影响高速公路的通行能力和高速公路的旁路。通过不同种类的出入口组合，编织段的位置发生了变化。本文以出入口和出入口两种方式为主题，确定其对高速公路和高速公路旁道的影响，并根据设计的服务量，探讨其在不同合并比例和分散比例下的适用性。首先，我们使用交通分析软件和Visual Basic编码的车辆计数器，从在北京四环上录制的视频中提取交通参数，交通量和点速。其次，根据巷道的几何特征，建立并标定了VISSIM仿真模型，提取了体积，点速，时延，出入口排队长度，干线和支路的行驶时间作为发展指标。 。最后，本研究建立了DEA / AHP模型，以探索不同种类的出入口组合方式的适用性。研究结果对高速公路的出入口设计具有一定的参考价值。

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