Assessing the carbon emission reduction benefits of bikeshare as a feeder mode for metro stations
In order to advance the growth of green and low-carbon urban transportation,we assessed the carbon emission reduction benefits of bikeshare as a feeder mode for metro stations by analyzing five workdays'worth of bikeshare order data and metro station data in Shenzhen.First,spatiotemporal constraints were used to analyze bikeshare behavior in connection to metro stations.Secondly,we quantified the carbon emissions reduced by substituting other transportation modes during the bikeshare-to-metro station connection process,based on the feeder distance and carbon reduction factor of the bikeshare.Thirdly,we constructed the spatiotemporal matrix of carbon emission reductions from bikeshare and identified carbon emission reduction scenarios using Non-negative Matrix Factorization(NMF).Finally,we analyzed the carbon emission reduction benefits of bikeshare,along with its spatial and temporal characteristics under each scenario,through time-series and kernel density analysis.The findings reveal that at the all-day level,a single feeder trip of bikeshare results in a carbon emission reduction of 62.75 g.At the multi-scenario level,the NMF algorithm identified five bikeshare carbon emission reduction scenarios,showcasing distinct spatial and temporal distribution differences in the carbon emission reduction benefits of bikeshare among these scenarios.In terms of time,carbon emission reductions within each scenario peak at various times throughout the day.Notably,the carbon emission reductions during the morning and evening peaks contribute to 45.26％of the total carbon emission reductions for the entire day.In terms of spatial analysis,distinct high-density and sub-high-density areas of carbon emission reductions are evident in each scenario,with variations in the spatial distribution of these areas between scenarios.These findings offer valuable insights into the carbon emission reduction benefits of bikeshare as a feeder mode for metro stations and serve as a reference for cities aiming to decarbonize urban transportation.
environmentalologycarbon emission reduction benefitbikeshareconnecting metro stationNon-negative Matrix Factorization
万方数据
维普
