Analyzing of urban green spaces development process with emphasis on sustainable principles (Case study: Mashhad metropolitan)

Urban green spaces are an important element in structure of cities. From these spaces can be named as the urban breathing lungs that they have various functions such as: City beautification, environmental modulators and leisure. Public land uses in many cities especially urban green spaces aren’t successful due to some factors such as: high population density, imbalance in land use location, neglect to redial access for providing services and etc. Today, it isn’t enough that we increase service centers also effort to achieve the standard and urban per capita because it is possible that all citizen haven’t appropriate access to land use (parks & urban green space) due to imbalance of their location. Due to urbanism phenomenon grow sharply, so analyzing of appropriate location and its geographical distribution is very useful in development and future of cities. In this research has been studied urban green space development process. This study is applied and the research method is" descriptive – analytical". Also data collected is documents. The findings show, the process of green space growth is well but don’t adapt with global standards. So, should be attempted in this issue