Abstract: In order to meet the requirement of the highway facilities planning in the suburban areas, a suburb road network node system was built through analyzing the socio-economic and road traffic characteristics of urban suburbs, learning the traditional method of node importance. By combining with direct connection method, a method of highway network planning was put forward. Moreover, this method was applied to the highway network planning of the Nanjiao district of Datong city. The results show that the planned highway network can meet the traffic demand of the main city road, external road and inner road in the suburban areas,and meet the demand of economic development in the suburban areas. This research results can provide a reference for the highway network planning in suburban areas.

Key words: traffic engineering, improved node importance method, suburban areas, highway network planning

摘要： 为了满足近郊区城市化建设阶段公路设施规划需要，通过分析近郊区经济发展及交通特性，在传统节点重要度方法的基础上，构建近郊区路网节点体系，结合直接连线法，建立适用于城市近郊区公路网规划方法。将此方法应用于大同市南郊区公路网规划实践。结果表明：规划后公路网能够满足近郊区与主城区道路交通、近郊区对外道路交通以及近郊区内部道路交通多层次需求，并能够适应近郊区经济发展。研究成果对近郊区公路网布局具有一定借鉴意义。

关键词: 交通工程, 改进节点重要度法, 城市近郊区, 公路网规划