城市道路宏观路网交通状态评价方法的研究

Evaluation of the Traffic Condition of Urban Macroscopic Road Traffic Network

提出了宏观路网交通状态的分级和评价方法。基于主观评价的方法可以确定路网交通状态的分级标准,以及各评价指标在线性判别模型中的权重,进而可以定量评判路网的交通状态等级。实验证明该定量评价方法能够有效地融合路网畅通率、空间负荷裕度等多种特征,能够准确地进行路网交通状态的评价。

The paper introduces the grading and evaluation method of the traffic condition of macroscopic road network. The suhj eetive evaluation method can help determine the grading standard of road network condition, as well as the weights of different evaluation indices of the linear discriminant model, which, in turn, enables the grading of traffic conditions of road networks quantitatively. An experimental study verifies the advantages of the method in coordinating the unblocked rate, the load margin and other characteristics of the road network and its capability to accurately evaluate the traffic condition of road networks.