Evaluation of the Composition of Masses and Open sSpaces in Urban Neighborhoods, a Passive Defense Perspective (Case Study: District 1, Tabriz)

Open spaces located in central neighborhoods of cities can be considered as the most important programmable spaces from a non-operational defense perspective. Since such spaces belong to the public or the public bodies, they can, in times of crisis, be used for relief and temporary accommodation of damaged people. Accordingly, the present study aims to investigate and identify the limitations and possibilities of open spaces in district 1, Tabriz in terms of composition of masses and open spaces from the perspective of non-operating defense. For this purpose, various software applications are applied including: ArcGIS10, Auto cad, and Excel in order to zoning the spaces based on their different vulnerability levels and to analyze the data. The findings of the present research indicated that most old neighborhoods in district 1 Tabriz are vulnerable to the non-operating defense scale. Also, the structure of open spaces in the study area shows that more than 11.7% of the district is inappropriate spaces for the critical situations.