Based On Remote Sensing Of Chongqing City Urban Form Evolution Research

Urban spatial shape change drastically, spatial excessive spread, traffic jam, urban character loss, worsening ecological environment and so on a series of problems are required to break through the traditional urban planning, and call for adaptation of the urban planning theory and method, and reasonable scientific planning is the premise of more accurate understanding of the city's configuration and its evolution characteristics.This paper applied Airphoto,IKONOS,QuickBird,SPOT,GeoEye, etc remote sensing images as foundation material, First of all of these different video image matching, calibration, define the projection, amplitude cutting, image fusion, etc, and interpreting the pretreatment of Chongqing city a time series of the finished range. Calculation urban sprawl speed, expand intensity index and urban sprawl focus direction, etc. which can be used for analysis and description of Chongqing urban land expansion in the finished, compares the different phase state of the finished area expanded the weak, the speed and extension trend, we can define the urban development track and city in recent years in all directions expand on the strength of the construction. Using mathematical fractal theory and method of landscape analysis and other methods, using compactness, fractal dimension, shape index such as Chongqing urban form we measure external evolution characters, urban external space form is the city space factor self-organization evolution of the external performance, reasonable external space form to urban elements and the steady development of resources and environment. Combining the chongqing statistics yearbook of economic data, and to explore the influence of Chongqing urban morphology motive mechanism. Mainly from the natural and geographical conditions, political history factor, economic development factors, transportation conditions, the government's decision-making orientation, social culture influence and so on several influential factors were analyzed. Using systematical thoughts found: the economic development, transportation traction, natural and geographical conditions limitation follows from Chongqing urban form evolution process.