Based on analysis of operation characteristics of rotary traffic flow, the principles and methods of the optimum arrangement of survey sections are presented in this paper.
在分析环行交通流运行特性基础上，提出了指导观测断面优化布设的原则和方法，用实例对各进口流向流量和交织段的观测和推算进行了应用说明。
Regarding traffic flow analysis of Yanyuncun district in Beijing as the main object, great deal of experiments and survey have been made on the road net node in the district.
以北京市亚运村地区的交通流量分析为目标，对该地区路网节点交通流量进行了大量实验调查。
Traffic survey is the base of highway planning and construction. Analysis is made on its significance and problems in Hebei province, and given the Suggestions.
交调工作是公路规划、建设的重要基础工作，详细地分析了交调工作的意义及河北省开展现状及存在的问题，并提出相应建议。
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