The Role of Sustainable Development in Lost Space of Urban Entrances

City is the greatest symbol of human civilization and has been built for safety and comfort. However, uncontrolled urban growth regardless of urban patterns caused some anonymous and unsightly images of the cities and also increasing expansion of cities made urban entranceindustrial applications and irrelevant with this rapid development in its placeand does not have any spacial sequence with urban identity. Accordingly, this space became one of the most meaningless parts of the cities. This issue has an important impact on concepts such as Urban Identity, Urban Morphology, social and ecological aspects of cities. Thus, sustainable development tries to solve these irregularities from Human life. The aim of this investigation is the identification and evaluation of principles and aspects of sustainable development on city entrances identifying the concept, with a focus on urban landuse beside the project with approaches in urban lost spaces, then with preservation of environmental quality, mixed urban land use, tries to respond human needs for making good role for urban identity. The case study of this article is the entrance of Gorgan city, and the method of this research is   Descriptive and analytical.