Ranking of Project Delay Factors in the Construction of Civil Infrastructure, Case study: Tehran Highway Bridge

Purpose of this study is Assessment and review of time - lag factors in a Bridge. The execution of development projects such as bridges, due to the importance and critical role of the structure in the system of transport and traffic control, aims at achieving the goals of development plans and its impact on the development and evolution of human activities, distribution of services and reducing traffic volume, as compared to other development projects. It is essential to study the factors of time delay in the construction process, and thus making significant savings in the construction and implementation of other similar development projects, thus making significant savings on the financial and temporal dimensions. In this study, after accurate identification and introduction of case study , three main indices of project delay , each consisting of several sub - branches , are prepared in the majority of questionnaires and are weighted by a number of experts , indicators and sub - indices of project delay. In this way, the most important parameters which have the maximum contribution to the delay in the project implementation process are introduced. In the following, using the classification and gathering points and the results of the questionnaire, the most important factors for delay in the project will be identified and introduced. It should be noted that the responses obtained from the questionnaire in this study will be AHP method. According to the results of the present study, one of the most important factors affecting the time delay regarding the bridge has been classified into three main indicators related to financial factors, regulatory factors and executive management factors. Therefore, the most important sub - indicator of the delay was due to the three indicators of financial , monitoring and implementation, respectively, lack of price list nonuse of new engineering contracts such as BOO , BOT , EPC  and lack of Article 53 of the General Terms of treaty.