Typology of lost spaces in Shahid Beheshti Street of Karaj, using the urban catalyst projects approach

This article intends to identify and define the typology of lost urban spaces in Shahid Beheshti Street in Karaj, and also to determine the priority of planning and design for lost spaces by examining the amount of its catalyst.

In order to study a case study an expert-centered approach based on criteria of conceptual framework is used for examining and finding the lost spaces. In this section, the field survey method including observation, survey and photography were used and by completing the checklist, the catalyst of each space was evaluated with an expert-centered view.

Based on the evaluation in functional, social, economic, environmental and implemtational dimenstions, 23 lost spaces in the case study can be divided into five types, which are: undeveloped space, open parking space, dysfunctional space, residual development space and space abandoned on the side of the street.

According to the research approach, in order to revitalize the street, 8 principles should be considered (enclouser and continuity of facade / coordination of form and function / diversity and varaiety / context / compatibility / people-centered / static and dynamic / dialectic of exterior and interior space).