Exploring The Spatio-temporal Characteristics And Influencing Factors Of Sharing Bike Integrated With Metro Stations

The bicycle-metro integration travel mode effectively solves the “last mile” problem of public transportation and becomes an indispensable part of people's daily life travel.As the free-floating sharing bikes(FFSB)continue to spread in the city,some problems such as the accumulation of vehicles at some subway stations,the difficulty of finding a car,and the lack of related riding facilities are also apparent.This puts forward higher requirements for the riding facilities around metro stations and relevant management measure.However,the existing studies pay more attention to the use of docked sharing bikes and its influencing factors.The related research on FFSB around metro stations and its relationship with the built environment is scarce.In this context,this paper makes an in-depth analysis of the spatial-temporal characteristics and influencing factors of FFSB around metro stations,and provides a theoretical reference for comprehensive understanding of the “last mile” and the development of corresponding planning management policies.In this paper,the FFSB integrated with metro stations were taken as research objects.The spatial and temporal characteristics of the FFSB integrated with metro stations were analyzed from the two directions of cycling amount and cycling distance.In terms of the cycling amount,the characteristic of the total cycling amount of a week,the total cycling amount of 24 hours,the arrive and departure trips of 24 hours and the cycling time were analyzed and summarized.The spatial distribution of different metro stations with above indicators is compared and summarized.All of the metro stations are classified into four different types.In terms of the cycling distance,the characteristic of overall average cycling distance of all trips and the average cycling discussed of the trips in a week or a day was summarized,and then the difference between all the metro stations with the average cycling distance was compared.According to the length of the cycling distance,the stations was “circle layered”.According to the distribution characteristics of the cycling distance,the stations were divided into "single peak distribution" and "bimodal and multi-peak distribution".Combined with the studies on public bicycles in the urban planning field,this paper selected various indicators that affected bicycle-metro integration process,including individual economic and social attributes,built environment indicators and station attributes.The multiple linear regression models were built to explore the relationship between the cycling distance and cycling amount with the influencing factors.The study found that the main factors affecting the number of bicycles-metro integration amount included the number of people renting around metro stations,the density of work and leisure facilities,the slope and the NDVI.The main factors affecting the distance of bicycles-metro integration were the distribution of residential and commercial facilities around metro stations,the closer between various facilities and stations,the shorter the corresponding cycling distance.Finally,according to the corresponding influencing factors,the planning and management strategy for FFSB was proposed.