Research On Commuting Satisfaction Based On The Employment Accessibility Of Urban Rail Transit

Commuting satisfaction is considered to be an important factor to measure the overall well-being of urban residents.While the urban rail transit with large volume and high intensity improves commuting efficiency,commuting satisfaction has gradually become a topic of concern.At present,domestic and foreign studies on commuting or travel satisfaction focus on the impact of individual attributes,built environment and traffic facilities,and there are few studies on the impact of each commuting link on the overall commuting satisfaction.Taking Beijing as an example,based on the satisfaction theory and job-housing spatial relationship theory,this paper analyzed the characteristics and changes of the job-housing spatial distribution in Beijing by using the traditional census data and Amap POI data,and identified the residential centers and employment centers in the city.On this basis,the accessibility analysis model and ordered Logistic regression model were constructed based on the questionnaire survey data of commuting satisfaction scale,and the rail transit system was studied from two perspectives of objective employment accessibility evaluation and residents’ subjective commuting satisfaction.Through network analysis and spatial visualization based on Arc GIS,the spatial distribution characteristics of rail transit accessibility and commuter satisfaction were revealed,and the influence mechanism of rail transit accessibility on commuter satisfaction was studied.The results show that: 1)The residential centers and employment centers in Beijing are still mainly concentrated in the urban center.However,compared with 10 years ago,Beijing’s living space has expanded and the employment space has further narrowed,resulting in a more serious separation of jobs and residence.2)The accessibility of rail transit network shows a trend of circular weakness from the urban center.The overall level of accessibility of rail transit stations is not high,and there are differences in spatial distribution and connection modes.And the service level of employment end of rail transit station is better than that of residential end.3)In terms of spatial distribution characteristics,commuter satisfaction is higher in areas near rail transit stations,especially near the end of the line.In terms of the characteristics of rail transit commuting links,the last mile commuting satisfaction is better than the first mile commuting satisfaction.In addition,the results of the ordered regression model show that the commuting time and mode are the most critical factors affecting the commuting satisfaction.Long commuting time reduces the level of satisfaction.However,the single commuting time of each link,such as the first mile and the last mile,has no significant impact on satisfaction.In terms of commuting mode,the satisfaction level of commuters who mainly take non-motorized transportation mode and walk to finish the last mile of commuting process is higher.In addition,commuting satisfaction is also affected by individual social attributes such as income and household registration status.The study enriched the methods and connotation of urban rail transit employment accessibility evaluation,and discovered the asymmetry of commuting accessibility and satisfaction distribution of residents at the first mile and the last mile.The conclusion of this paper will provide policy support for improving commuting satisfaction through a more balanced job-housing space relationship,further strengthening the coupling between rail transit construction and urban functions,and improving the accessibility of the last mile of commuting.It will also provide reference for moving towards a humancentered happy commuting road.