信号控制环形交叉口方式与通行能力关联性的研究

Study of Relevance between Sign Controlling Circular Cross Pattern and Passage Capacity

重点阐述了对环形交叉口车辆通行的单进口道顺时针依次放行控制、单进口道顺时针依次放行控制+次车流交织、多进口道放行协同环道控制等3种控制方法。解析了在不同信号控制方法情况下的时空战略参数信号周期和中心岛半径对通行能力的影响规律。其研究成果对完善信号控制环形交叉口理论体系及为无控制环形交叉口的改造和环交信号控制方式的选择等提供了技术支持,具有重要的应用价值。

The main concern of this text is on the three control methods related with control of in - turn discharge clockwise at signal - entrance, control of in - turn discharge clockwise at signal - entrance path ＋ interlace of minor flow and control of association roundabout control at multi - entrance path. The effect of signal period of time and space strategy parameter and radins of island on traffic capacity is analyzed by using different signal control methods. The research achievement will perfect the theory system for signal control roundabout and provides technical support for the reconstruction of uncontrolled roundabout as well as selection of signal control method of roundabout, which has significant value.