高速公路网互通式立交需求分析方法研究

Methodology of the Interchanges Demand Analysis in Freeway Network Planning

针对我国缺少高速公路网互通式立交需求分析研究的实际情况,提出了高速公路网规划服务性互通式立交需求定量分析方法。该方法将类比法和主成分分析法结合使用,分析高速公路网服务性立交数量和所在城市相关指标之间的关系,建立两者之间的主成分综合表达式,用以定量估算高速公路网中城市节点对服务性互通式立交的需求。以安徽省高速公路网规划作为实例,检验该方法的可用性和实用性。

This paper proposed a quantitative methodology for analyzing the interchanges demand of freeway network. This methodology could be used to analyze and compute the number of service interchanges in freeway network planning. By combining the analogy and main component analysis method, the paper analyzed the relationship of the number of service interchanges of freeway network and the related indicators of the cities where the interchanges locate. Meanwhile, the equations of the relationship were developed to compute the number of interchanges. For checking the usability and practicability, this methodology was applied in Anhui Freeway Network Planning.