Research On Layout Optimization Of Urban Park In Shijiazhuang City

A number of shortcomings of urban living life were gradually exposed with the accelerating process of urbanization. The life pressure increased unceasingly so that people need to approach nature urgently. As an important component part of urban public sources, urban parks possess many significant functions for ecology, leisure, economy and socio-culture of cities. Furthermore, urban parks provide an ideal place for residents far away from the stresses of modern life and enable them have more pleasure. Therefore, both the government and residents are paying close attention to the development of urban parks; specialists and scholars are concerning and discussing those urban environment matters as well. At present, the landscape pattern, ecological effects and specific park planning are particularly concentrated by domestic scholars. Moreover, most of those researches are a qualitative work and lack of quantitative research. Research focus on the fairness of city parks, space and space suitable for the rational allocation is still in the primary stage.In this paper, based on a large number of domestic and international research literature, first of all, the paper will focus on macroscopic analyses about Shijiazhuang urban park space layout characteristics which had the following characteristics of spatial distribution: (1)As a whole showed accumulation punctual distribution, and the direction of the obvious; (2)City parks located around the main traffic lines; (3) There are obvious spatial differences in each region of the spatial distribution of the park. (4)Geographically unbalance distribution of all kinds of urban parks; (5)The central city accessibility is high, eastern and the northern area could serve the blind spot; (6)The spatial distribution of a certain extent in line with the characteristics of Central Place Theory.Secondly, microscopically, from the application of space-fitness function was applied to evaluate 51 City Park samples of Shijiazhuang City, and concluded that there are 37 city parks which are spatial being suitable and 14 which are spatial being not suitable.Finally, the exploring research applied the method which combines the spatial disposition model with the optimized algorithm to carry on the optimization to the spatial arrangement of Shijiazhuang urban park. From different point of view, such as the landscape, ecologic, economic, at the same time the research uses the strength influence factors which are population density, soil-rent value, river system and path uniform. By virtue of the Technology platform of Matlab, the method could calculates the coordinates of Shijiazhuang city park location. After the amendment, the research obtains the optimization program on Shijiazhuang city park space layout.In this paper, there are two characteristics and main innovations:One is perspective innovation. This paper combines Macro examination and microscopic appraisal, from two perspectives to analyze and evaluate spatial layout of Shijiazhuang urban park, breaks through the traditional limitation from the whole to consider the layout of features or a single park layout whether reasonable. Macroscopically the consideration its layout characteristic so that the whole can grasp its layout condition and the distributed direction microscopically more detailed evaluation the matching degree of each of the service function of a urban park and its surrounding environment. Hence, it can be more scientific and more rational to optimize the layout of city park space.Second, the research method is innovated. For the first time, this paper applied the spatial disposition model and mathematics optimization algorithm in the city park spatial arrangement optimal process. Breaks through the traditional qualitative analysis or GIS optimization method, using Matlab software which has a powerful scientific computer data processing capacity and excellent graphics processing capabilities to locate the city park scientific, rational and precise, so that it could be obtain the optimal arrangement program. The application of this mode not only provided one new method for city park space allocation, reasonable location provides a new approach, but also can be extended to urban infrastructure construction and other fields.