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本文利用多时段TM影像图和城市规划图,采用GIS空间分析技术,运用象限方位分析方法对徐州市城市空间扩展强度、重心坐标等指数进行定量分析,生成交通建设与城市规模的相关系数矩阵,研究该市城市空间扩展与交通脉动的变化规律。结果表明:1979—2008年间,受城区主干道路、高速公路、高速铁路等重大交通设施建设影响,徐州市城市规模逐步向东部和南部扩散,城市重心总体向东南方向偏移;紧凑度逐渐减小,分形维数逐渐增大,城市空间形态日益复杂。
In this paper, multi-time TM image and city planning map are used to analyze the spatial expansion intensity and center of gravity coordinates of Xuzhou city using GIS spatial analysis technology and quadrant orientation analysis method to generate the correlation coefficient matrix of traffic construction and urban scale, Study of the city’s urban space expansion and traffic fluctuations in the law of change. The results show that during the period from 1979 to 2008, influenced by the construction of major traffic facilities such as urban trunk roads, expressways and high-speed railways, the urban scale of Xuzhou gradually spread to the east and south, and the center of gravity of the cities shifted to the southeast as a whole; Small, fractal dimensions gradually increased, the increasingly complex urban spatial form.