摘要
提出适合在高速公路网规划阶段进行的立交等级划分和形式选择的实用方法。该方法首先选取25种具有代表性的立交形式作为分析对象,然后提取这些立交形式的通行能力、设计车速、复杂程度、占地面积、造价等有关规模等级方面的技术指标作为变量进行聚类分析,最后根据聚类分析结果将这些典型立交形式划分为不同规模和等级,每一级中包含有数个立交基本形式,它们具有相近的技术指标、规模和特点,并有各自的适用条件和范围。为检验该方法的实用性,选取安徽省高速公路网规划进行了实例分析。
A methodology for the type selection of interchanges at expressway network planning stage was proposed. Firstly, 25 typical interchanges were selected to be the objects of the analysis. With the cluster analysis, the capacities, design speeds, complexities, areas required, and costs of these interchanges were analyzed for the classification. Based on the results of the cluster analysis, the 25 commonly used interchanges were classified into 6 classes, and the interchanges in each class have similar characteristics and application conditions. With the classification results, this methodology was applied in the Expressway Network Planning of Anhui Province for checking the applicability and practicability.
出处
《公路交通科技》
CAS
CSCD
北大核心
2006年第10期99-102,共4页
Journal of Highway and Transportation Research and Development
关键词
高速公路网
立交形式规划
规模等级划分
聚类分析法
expressway network
interchanges types planning
scale classification
cluster analysis
