Abstract
为研究开放小区后对周边道路通行的影响，本文以路段、交叉口通行能力为指标度量道路疏导车辆的能力，以道路饱和度为指标直观地反映道路的拥堵程度，并创新性地以路段和交叉口的面积为权重，建立了城市道路交通饱和度函数，以此来评价区域道路整体通行情况。通过三类小区的实证分析，小区开放后对区域整体道路通行情况起到改善所用，但会造成与小区相接路段的通行能力下降，并且对不同类型小区改善程度不同。最后，针对小区开放提出了合理化的建议。 In order to research the influence of opening residential quarter on the surrounding traffic; firstly, we choose the traffic capacities of the road sections and intersections as indexes to evaluate the dispersion capabilities of road, and choose the saturation of road sections and intersections as indexes to reflect the congestion degree of road. Secondly, assigning the area percentage of road section and intersection to the saturation’s weights, we innovatively establish the urban road traffic saturation function to evaluate the whole surrounding road traffic condition. Thirdly, taking three residential quarters as example, we find opening improves the whole performance of traffic, and for different residential quarter, the degrees of improvement are different. However, opening also results in the degradation of traffic capacity for the connected road sections of the residential quarter. Finally, some suggestions about opening residential quarter are proposed.
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