Effective Measures to Reduce Factors Affecting Increase in Cost of Bridge Projects

The purpose of this study was to identify effective measures to reduce cost factors in Alborz province bridge construction projects. In the present study, similar studies were first reviewed and then a questionnaire was identified and collected based on 58 common factors of cost. The statistical questionnaire was distributed to 30 selected respondents among the client, contractor and consultant who had appropriate experience in bridge construction. The collected data were analyzed and 15 factors out of 58 identified the highest scores. After analyzing the data using factor analysis method in SPSS software, the results showed that out of 15 indices 5 The final factor had eigenvalues ​​above one that were identified as the main drivers of cost increases, accounting for 84.269% of the variance. The questionnaire was then given to 30 experts to take effective measures to reduce each of the cost-enhancing factors. The data collected were analyzed using content analysis method to rank the reduction measures according to their importance from the perspective of the respondents. The results of this study will be useful for bridge projects that are used as reference for taking appropriate measures to control the high cost of bridge construction projects in the province.