基于兴趣点数据的公交站点布局合理度物元分析评价

An Evaluation of Bus Station Layout Rationality Using Matter Element Analysis Based on Points of Interest Data

合理的公交站点布局有助于良好地服务城市居民出行。为深入评价并揭示公交站点布局与城市其他设施之间的联系,研究了基于兴趣点数据的城市公交站点布局合理度的评价指标。通过分析站点服务范围内兴趣点的特征,设计了兴趣点数量、距离与流量3个指标,给出了各指标的指标值和权值计算方法,并使用物元分析模型分别计算各站点的布局合理度。将所有站点的评分均值作为站点网的整体布局合理度。以徐州市丰县城区公交站点网络为例进行了指标标定和布局合理度评价的实际应用。对于案例的核心区和非核心区评价结果的比值,基于兴趣点数据的评价指标是3.75,传统的评价指标为1.40,而兴趣点在核心区和非核心区上分布的比值为3.32。该结果验证了所提出的基于兴趣点数据的指标在评价站点布局合理度上的可行性。

Reasonable transit bus station location is helpful to serve travel demand of the urban residents.In order to evaluate and reveal the relationship between bus stations and urban facilities,a set of evaluation indicators for layout rationality of bus stations based on the point of interest(POI)data is proposed.Three indicators,including number of POIs,distances,and passenger flows,are then designed by analyzing the features of POIs within the service area of stations.On this basis,calculation and weighting methods of every indicator are provided,and each bus station is evaluated by a matter element analysis model.The overall evaluation score of the bus station network is computed as an average of the scores of all bus station.Taking the bus station network in Fenxian,Xuzhou as a case study,the indicators are calibrated,and the layout rationality is evaluated.Using indicators based on the POI data,the ratio of the evaluation scores of core area and non-core area is 3.75,which is 1.40 while using traditional indicators.The ratio of POIs in core area and non-core area is 3.32.The results can verify feasibility of the proposed indicators.