The Research Of Leftover Space Design Of Urban Design

China's rapid urbanization process has revealed the urban development in many issues. The article in a fresh look at urban space on the basis of the city of "Leftover space", trying to a new perspective on the current urban space, urban development process and the State for reflection and attempting to Leftover space in the city streets open space of a series of problems and solutions.This paper is divided into three parts, Chapter II described the series of the concept of leftover space, and explained leftover space's concept, types, characteristics, and the intrinsic link between urban development. to make it have a clear context of the series. The third chapter, select the relevant urban design and related theories of public space, Such as environmental behavior, location theory to find the inherent relationship with urban space. In summing up the relevant based on the theory of urban design, proposed several basic element of surban public space. The fotth chapter to research as a primary means, Analysis of a number of examples of public space use, and explore their advantages and disadvantages. Summarizes the design approach, as the reference of Xi'an leftover space using reaserch. And finally as the transformation object of Taiyi Road overpass space in Xi'an. Conducting preliminary research, analysis based on the proposed design to rehabilitation programs. Chapter V of this paper is the utmost use of space outlook, indicating the use of space left over great potential, with broad prospects.I think it's very useful to Improve the current quality of urban environment, adjustment spatial structure, providing good living leisure environment and improve people's life. Also for the city leftover space to provide a theoretical framework for future research.