Abstract

The present research aims to assess and prioritize the possible risk concerning construction projects in district 22 of Tehran using the analytic hierarchy process (AHP). A questionnaire containing 37 statements were used to collect data through which criteria as well as sub-criteria regarding potential risks and dangers of running construction projects in district 22 of Tehran were determined. Detected risks were fire and explosion, building collapse, falling from a scaffold, stumbling and colliding with things, electric shock, getting stuck between things, being subject to dangerous materials, and the last but not the least sliding. Data were examined through the TOPSIS method. Results suggest that sliding, getting stuck between things, as well as fire and explosion are referred to as the top three risk factors in terms of importance among existent risks in the construction sites in district 22 of Tehran.