基于Vague物元的城市公共交通便捷性评价研究

Convenience Evaluation for Urban Public Transportation Based on Vague Matter-Element

城市公共交通便捷性是公共交通服务水平的重要体现,为科学评价城市公共交通便捷性,根据影响城市公共交通出行便捷性的起讫点、公共交通容量、线路及公共交通辅助设施等4个主要因素,选取了换乘距离、换乘系数、公交站点覆盖率、公交线网密度等12个评价指标,构建了城市公共交通便捷性评价指标体系。应用Vague物元评价模型,对重庆市主城区公共交通的便捷性进行评价,评价结果为"二级"。结果表明,新的评价指标体系更有助于针对性地评价城市公共交通系统的便捷性,实际数据的贴进度与"二级"的贴进度相差0.0117,可见评价结果精度较高。

The convenience of urban public traffic is an important manifestation of the level of public transport serv-ices .In order to give a scientific evaluation on the convenience index of urban public traffic ,12 evaluation indexes are se-lected including transfer distance ,transfer coefficient ,bus stops service rate ,transit network density ,etc ,to build an ur-ban public traffic convenience evaluation index system based on four cardinal points including O-D points ,public transpor-tation capacity ,routes and auxiliary facilities ,which influence the convenience indexes of urban public traffic .This paper gives a Vague matter-element model on the public traffic convenience of Chongqing ,and reaches ＂level 2＂as the evalua-tion consequence .The results show that the new evaluation index system is a more helpful way to give an evaluation on the convenience index of urban public traffic ,and the difference between the closeness degree of the actual data and the closeness degree of ＂level 2＂is 0 .0117 ,which gives the optimal evaluation results .