Research On Slow-moving Connection Behavior Of Railway Station And Optimization Of Connection Environment

With the rapid development of China’s cities,urban problems have gradually emerged,especially in terms of traffic congestion and environmental pollution.Rail transit,as a largevolume,high-speed,green,and safe public transport mode,has received increasing attention and gradually entered a period of rapid development,slow travel is often used in conjunction with rail transit because it can solve the key problem of the "last mile".Due to the strong transportation capacity of rail transit,the concentration of people around the station is extremely high.The slow-traffic travel experience around the station has a great impact on the city’s operating efficiency and environmental quality.In order to effectively improve the service efficiency and quality of slow-traffic travel around the station,develop green transportation,and build a humanized and ecologically civilized society,this paper studied the characteristics of slow-traffic travel behaviors around the stations and the refined slow-travel environment optimization strategies.This paper selects Xi’an Rail Transit Station as the research object.Firstly,based on the walking distance of the station and the road network structure,the impact zone range of the station was obtained,and the buffer zone of the station was constructed.Based on the land use structure and POI data,the functional characteristics of the site buffer zone were determined.And 87 orbital sites in Xi’an were divided into seven types of sites.Selecting typical stations,this paper used RP / SP combined survey methods to obtain data,and characterizes the travel behavior characteristics around the station from the perspectives of socioeconomic attributes,travel attributes,travel satisfaction,traveler preferences,and built environment around the station.From the perspectives of socio-economic attributes,travel attributes,travel satisfaction,traveler preferences,and built environment around the station,the characteristics of travel behaviors around the station and the characteristics of the slow-traffic environment were described.Based on the structural equations,a multi-scenario model for the selection of multiple subway connection modes,the selection of walking connection subway modes,and the selection of bicycle connection subway modes was used to explore the impact mechanism of slow traffic.Based on the GIS spatial analysis function,a slow taffic evironment score model around the site was constructed to characterize the slow-traffic environment characteristics of multiple types of sites.Finally,from a subjective and objective perspective,a slow travel environment optimization strategy was proposed based on the slow travel score and slow travel satisfaction.Based on the preferences of travelers,a slow-traffic travel guide strategy was constructed to comprehensively improve the travel efficiency and service quality of slow-traffic around the station,and promote the construction of a green,ecological and environmentally friendly society.The research results showed that:(1)Based on function-oriented,the subway stations in Xi’an are divided into seven categories: residential-oriented,commercial-oriented,publicoriented,traffic-oriented,industrial-oriented,comprehensive and development-type stations;(2)The choice of connection method and travel satisfaction are jointly affected by subjective and objective factors.The built environment factor has a great influence on the choice of travel mode,while internal factors such as traveler’s time concept,money concept and subjective norms have a greater impact on travel satisfaction.Travel satisfaction promotes the selection of similar connection methods;(3)The slow-traffic score of the seven types of stations is generally low,and most of the slow-traffic scores are distributed below 50,indicating that the slowmoving environment is poor.The slow-traffic environment of comprehensive site “Zhong Lou” and residential site “Tai Bai Nan Lu” is relatively good,and the slow-traffic score of areas greater than 70 reaches 26.49% and 22.51%.The slow-traffic environment of business service site “Ti Yu Chang”,public site “Da Yan Ta”,and traffic site “Wu Lu Kou” is general,and the slow-traffic score is greater than 70 in areas with 18.40%,16.80%,and 16.27%.The slowtraffic environment of industrial site “Chan He” and development site “Shen Zhou Da Dao” is relatively poor.The slow-traffic score of “Chan He” does not exceed 70,and the slow-traffic score of “Shen Zhou Da Dao”does not exceed 50.(4)Considering the specificity of the site function,based on the site slow taffic evironment score and slow moving satisfaction,the optimization strategy is proposed from the aspects of POI spatial distribution,road network structure and slow moving facilities,and the slow travel guide strategy is proposed based on the traveler’s preference.These can provide a reference value for creating a green,efficient and high-quality travel environment around the railway station.