ابوالفضل دهقان منگابادی

The complete streets movement has been defined as the latest movement for providing safe streets for all modes of transportation and people of all ages and abilities through redesigning streets' spaces. The first phase in planning a successful complete street for any location is establishing a solid policy. To identify the key components of the firm policy, this study surveyed the highest-ranked complete streets policies in North America since the concept of the complete street has emerged in the USA. This study aimed to provide an exemplary policy structure for other societies to use as a model for developing successful complete streets policy in their communities. To support this effort, an integrated literature review made for an inclusive methodological approach. As a result, fundamental approaches to writing and defining an ideal complete street policy are clarified. Also, two characteristics outside the policy elements, which improved the policy's potential for success, are discovered.

The concept of sustainability is encouraged to preserve natural resources, social values, cultural heritage, and economic capital, which already exist to make available them for the next generations. Moreover, to enhance the level of sustainability in communities, numerous scholars indicated both individual and community identities play a crucial role. Sustainability is attainable and successful if there are compatibility and balance among cultural diversity, social justice, environmental responsibility, and economic equality as well as be able to attract people and appeared in their values and behaviors. Due to the critical role of social identity for improving the capacity of the people by changing their values and behaviors, it can be argued that social identity plays a vital role to achieve and support the concept of sustainability. Besides, place identity is linked to meanings and perceptions held by the people concerning their environment. Thus, the effect of social and place identities to achieve sustainable city has been identified as one of the urban design issues for contemporary cities. In this regard, the main aim is how social and place identities can contribute to promoting sustainability approaches and behavior in communities. The methodology of this study is an integrative literature review based on existing documents and studies. As a result, the research would convey to understanding the dynamic role of social and place identities for enhancing the level of sustainability in urban communities.