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过去十年间,通过路网结构特征方法进行公路网关键路段辨别方面已经开展了大量深入研究。大多数研究是基于图与网络理论,极少数考虑了路网的动态交通特征。但在真实交通环境下,通过这些方法辨别出的关键路段可能与实际情况有所差异,因此,基于动态交通流的关键监测点辨别方法研究是十分必要的。基于此,本文提出了一种基于动态交通流的关键监测点辨别方法,并选择安徽省公路网,通过DTAlite中宏观交通仿真软件进行了交通流仿真,根据仿真输出结果对提出的方法进行了验证,进一步,将验证结果与静态网络特征分析方法结果进行了对比分析。结果表明:基于动态交通流的关键路段辨别方法能够准确辨别真实交通环境下的关键路段,具有一定的可行性和合理性。
In the past ten years, a great deal of in-depth research has been carried out in the key road section identification of highway networks through the method of road network structural features. Most studies are based on graphs and network theory, very few consider the dynamic traffic characteristics of the road network. However, under the real traffic environment, the key sections identified by these methods may be different from the actual situation. Therefore, it is necessary to study the method of identifying key monitoring points based on dynamic traffic flow. Based on this, this paper presents a method of identifying key monitoring points based on dynamic traffic flow, and selects Anhui Province highway network. Traffic simulation is carried out by macro traffic simulation software in DTAlite, and the proposed method is verified according to the simulation output Further, the verification results are compared with the results of the static network feature analysis method. The results show that the method based on dynamic traffic flow can identify the key sections accurately under the real traffic environment with certain feasibility and rationality.