分形与连接关于城市街道网络形态演变的研究城乡规划学专业论文.docxVIP

分形与连接：关于城市街道网络形态演变的研究Abst 分形与连接：关于城市街道网络形态演变的研究 Abst ract The urban design philosophy has been continuously reformed since 20th Century．After the upheaval ofmodernist morphology，the researchers and habitant ofthe city started to pursue traditional street and this trend becomes more and more obvious in recent years．Along with tlle increasing intensity of this tendency，it is more important to establish rational cognition of the traditional street network SO as to return to the tradition rationally． mS Paper studies urban street network from the view of dynamic evolution．The two characters—fractal and connection of the city wiU be the cutting．in points of this study for the qualitative and quantitative analysis of the evolution of urban street network．In the empirical researchofthisPaper,twocitiesinfourperiods，namelyParisdowntownarea(1850-1910)and Boston old city(1895-1980)，are chosen as the research samples according to the principles of historic significance，evolution and capable of evaluation．Firstly，the fractal of street network morphology reform will be compared based on dimension，branching ratio and length ratio． Secondly，the connectivity of the samples will be compared in topology connectivity and geometric connectivity．Finally，the qualitative feedback and quantitative calculation with the way of space syntax will be analyzed synthetically to evaluate the evolution of morphology， thereby to establish the connection between the reform of fractal features and connectivity during the evolution of urban street network and the quality of urban street network． The research conclusions of this Paper indicate that fractal structure and multi．connection structure have their theoretical structural advantages．In the empirical study．along with the evolution and development of the urban street network，its fractal feature has been enhanced and the connectivity and path enrichment has been improved，which is in favor of improving the integration degree and intelligibility of th