Review of affective factors on cost, time and quality of construction projects in developing countries

摘要

Nowadays, project management in different fields, has a significant effect on time and costs and also stabilizing the quality of projects. A considerable part of projects is the construction part which takes a noticeable portion of governmental and private budget in developing countries. According to the presented statistical results, many civil projects have failed: delay in finishing the project, additional costs to the initial cost estimation and a fall in the quality followed by downfall of the efficiency of the project. With regards to the importance of the subject and the stated problem, managers have done many researches in years and presented different solutions: one of them is the project management triangle (cost, time, quality). During these years, civil project managers have been using this triangle in managing their projects, but because of the effects of different factors on the construction industry this triangle is not of great help in management problems anymore. In this article, it has been tried to clarify the various factors which influence the construction industry and their relation with each other, according to the survey taken from statistical community, consisted of important construction companies and managers of major civil projects.