区域建成环境对共享单车日变特征的影响--以厦门市为例

Impact of Built Environment on Bike Sharing Diurnal Variation Characteristics:A Case Study in Xiamen

建成环境对共享单车出行的影响机理是研究共享单车出行行为空间差异性以及制定分区管控策略的基础。然而关于共享单车出行量的日变化特征研究相对不足,现有研究大多采用几天的短期数据,缺乏对其空间异质性长期效应的研究。基于2018年厦门市近三个月的共享单车数据进行分区研究,建立了描述共享单车日出行量长期波动变化的指标体系,细分了五种区域共享单车出行模式,并探究了区域建成环境对共享单车出行量日变特征的影响。研究发现:建成环境会影响区域共享单车的日出行量及其长期的波动变化。人口密度、交通可达性以及各类POI数量均会正向影响区域共享单车的日出行量,而POI类别、与轨道交通的联系以及土地利用多样性则会对日出行量的波动变化特征产生不同的影响,土地利用多样性越高,日出行量变化越均匀。管理者可以据此安排针对性分区管理策略。

The impact mechanism of built environment on bike sharing is the basis of analyzing the spa-tial differences of bike sharing travel behavior and formulating regional management strategies.How-ever,the research on the characteristics of diurnal variation of bike sharing travel volume is relatively insufficient.Most existing research use short-term data of several days,and lack of research on the long-term effects of spatial heterogeneity.Based on the bike sharing data of Xiamen during nearly three months in 2018,this paper conducts regional research and establishes an index system describing the long-term fluctuation of bike sharing daily travel volume.Five regional bike sharing travel modes are divided,and the impact of regional built environment on the diurnal variation of bike sharing daily travel volume is discussed.The results show that the built environment will affect the daily travel vol-ume of regional bike sharing and its long-term fluctuation.Population,traffic accessibility,and the number of POI will positively affect the daily travel volume of regional bike sharing,while the POI category,the connection with rail transit and the land use diversity will have different effects on the fluctuation characteristics of daily travel volume.The daily travel volume variation tends to be uni-form as the land use diversity increases.Targeted management strategies in different areas can be de-veloped accordingly.