中小城市城乡公交站点的筛选方法研究

为探寻中心城市城乡公交站点的筛选方法，判断当前站点的设置合理性，提出出行兴趣点的概念，并以显著度指标来表征站点满足居民出行需求情况，结合出行调查数据和网络公开平台所得数据，提取出行时效性和土地混合利用两个因素，且引入路网通达度、综合服务值两个指标，建立站点显著度与二者的回归模型，并依据聚类分析将站点进行分级，通过分级结果判断得到出行兴趣点集合，将其作为城市端城乡公交的备选站点集合。研究结果显示：所建二元回归模型精度为0.85，拟合效果良好，表明采用显著度指标表征站点需求可行，其与路网通达度、综合服务值具有很强的相关性；聚类分析将站点分为5 个等级，且4 级及以上站点能满足90%的农村居民城乡出行需求，可作为出行兴趣点，构成中小城市城乡公交站点集合。

Selection Method of Sites for Urban-Rural Public Transit inSmall and Medium-Sized Cities

In order to find the selection method of sites of urban-rural transit and the rationality of sitesin small and medium-sized cities, the conception of point of interests for travel was presented firstly,then the indicator of significance was applied to characterize transit sites for urban-rural transit. The twofactors of travel effectiveness and mixed land use were extracted from the data of traffic survey and opennetwork platform, accordingly the indicators of network accessibility and integrated service value wereintroduced, and a regression model was constructed based on the two indicators above and significanceof sites. The point of interests for travel were selected from sites which were classified by cluster analysis. It could be considered as the selection of urban-rural transit sites for small and medium-sized cities.The results showed that the model accuracy reached 0.85 and the model fitting was good. It also provedthat it was feasible for characterizing the sites with significance and it was strongly relative among thethree indicators.The sites were classified into 5 grades by cluster analysis, then the 4th grade and abovewere selected as point of interests for travel, which met 90% travel demand. It means that the point of interests for travel can be applied as transit sites for urban-rural transit in small and medium-sized cities.