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针对传统的时空耗散法模型计算交通承载力的不足,提出了以相邻信号控制交叉口间路段为出发点进行交通承载分析改进的理论模型。根据快速路和非快速路的特性,分别进行交通承载力计算。其中,对于非快速路,根据下游交叉口的服务水平和路段的服务水平,对相邻信控交叉口之间的排队路段和非排队路段的交通承载力分别进行分析计算,并最终通过计算不同等级道路的交通承载力,构建了全路网的交通承载力计算模型。改进的交通承载力计量模型从微观角度分析,以期从理论上系统认识这一问题,为提高城市交通承载力提供理论依据。
In order to overcome the shortcomings of traditional time-space dissipation method in traffic capacity calculation, a theoretical model of traffic load analysis based on adjacent signal control intersections is proposed. According to the characteristics of expressway and non-expressway, calculate the bearing capacity separately. For non-expressway, according to the service level of the downstream intersection and the service level of the road section, the traffic carrying capacity of the queued and non-queued road sections between adjacent signalized intersections is respectively analyzed and calculated, and finally calculated by calculation Level road traffic load capacity, the construction of the whole network of traffic capacity calculation model. The improved traffic capacity measurement model is analyzed from the microscopic point of view, with a view to systematically recognizing this issue in theory and providing a theoretical basis for improving the urban traffic capacity.