Minimizing delay in construction projects in Tehran, Iran

Abstract

Construction industry is one of the most profitable sectors in Iran’s economic. Delay is common problem in the construction projects in Iran. This research, by considering the main causes of delay, prepared appropriate suggestions to minimize delay in construction projects in Tehran (Capital of Iran). Literature review provided up to date information with current literature and based on reviewing past publications. The questionnaires were distributed among respondents who are involved in the construction project in Tehran, Iran. The process of data analysis and discussions were conducted based on the questionnaire survey to identify the frequency of occurrence and severity affect of delay as well as findings the most effective methods of minimizing delay in Tehran’s construction projects. As a result of this study, respondents believe that ‘Delay in payment to contractor’ by client, ‘Difficulties in financing’ by contractor, ‘Slowness in decision making’ by client and ‘Poor site management’ by contractor are the most frequent and severe causes of delay in Tehran construction projects. Moreover the negative effects of delay on construction projects are: Cost Overrun, Change in Schedule and Liquidated Damage. Furthermore, the most effectiveness methods of minimizing delay are as follows: Pay progress payment to the contractor on time’ by client, ‘Accurate initial cost and time estimates’ by client and contractor, ‘Competent personnel of contractor / sub-contractor’ by contractor. Finally and based on the findings of this research, there were some recommendation to minimize the rate of delay in construction project in Tehran.