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As the product of urban development to a certain stage, Spatial differentiation is the spatial separation of urban residents due to different economic, cultural and social interaction caused. Based on the Sixth Population Census data of Suzhou in 2010, this paper analyzes urban social spatial differentiation by differentiation index and localization index. The results reveal the degree of social differentiation is bigger than those big cities, such as Beijing and Shanghai. It's the high degree of spatial differentiation among demographic characteristic indicators; The graduate degree is significant in education indicators; research industry and computer software industry among industry sectors get the high degree; Housing differentiation is clear. The mechanism of socio-spatial differentiation includes economic factor, institutional factor, administrative division adjustment factors and urban planning factor and so on. Among them, the development of export-oriented economy and administrative division adjustment are two major factors which results in socio-spatial differentiation in Suzhou in these years.

Urban fast rail transit system represented by the special lines for passenger transportation and the intercity railway will be the one of modernized rail traffic in our country, which will exert great influence on the tourist preference of the urban residents. This thesis taking the residents in Shanghai and Nanjing in the Yangtze River Delta as instance, to study with the questionnaire, analyses the influences of the modernized rail traffic at all aspects on the touring pattern for the urban residents and the frequency to tour, from which comes to the conclusion that the high-speed railway will possibly be the long distance tour, it will produce far reached influence on air traffic. The intercity railway will make the urban residents to tour the limits and frequency of tour.

High speed railway has been one of main transportation means of tourists for travelling. Service quality, corporate image of high speed railway affect tourist satisfaction. In this thesis, by factor analysis, the author analyses the main factors which influence tourist satisfaction on the basis of Shanghai-Nanjing intercity high speed railway studies. The study found that service quality, riding comfort, riding convenience and fares rationality are main factors that influences tourist satisfaction for high speed railway, among them, service quality is the most factors, safety of high speed train is the most satisfactory factor in service quality factors, the cleanness and comfort of train are most satisfactory factors in riding comfort factors; traffic connections is not convenient between suburbs and destinations or market region in riding convenience factor; fares is the most dissatisfactory factor.