Influence of Built Environment on Integrated Use of Bike Sharing and Metro
This study investigates the impact of the built environment on the demand for dockless bike-sharing(DBS)and integrated metro use.A number of 120,000 DBS trip records were utilized,and spatial confidence ellipse technology was employed to illustrate the clustering characteristics of DBS near metro stations.Subsequently,a quantitative method for delineating bicycle-metro catchment areas was developed,through which the built environment surrounding metro stations was evaluated through five dimensions:density,transportation facilities,land use,destination accessibility,and metro ridership.Finally,a gradient boosting decision trees(GBDT)model is employed to map the complex and non-linear interactions between the built environment and the necessity for integrated use modalities.The results indicated that metro ridership and workplace locations emerged as significant factors influencing the integrated use,exhibiting a distinct threshold effect.An increase in commercial activities initially elevates the integrated travel demand,but excessive density subsequently triggers adverse effects due to traffic congestion.An uptick in bus stop density indicates a competitive dynamic between shared bikes and public transit,underscoring the intricate interactions within urban transportation systems.Furthermore,the nonlinear effects of land use diversity and population density underscore the profound relationship between urban planning and residents'commuting behaviors.
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