BEST SCENARIOS FOR DIVERTING UTILIZES CONSIDERING THE MANAGEMENT TRIANGLE, CASE STUDY: CONSTRUCTION OF NEW UNDERGROUND METRO IN CAIRO, EGYPT

The construction of projects within highly densely populated cities, such as the construction of tunnels and bridges, is a common practice for the development of busy cities, some of which can be a solution to the congestion problem or the addition of new services to cities such as bridges and tunnels. In order to ensure the success of these projects the surrounding public facilities, which intersect with the proposed projects, must be studied in order to avoid the negative impacts of the population's water, sanitation, waste and communications needs. etc. Recent developments, like construction of new subways in old capitals, Cairo in this study, coincides with the lack of maps and data for existing infrastructure and conformity to nature, which negatively affects the time of completion of these projects on time due to many obstacles and accidents of facilities which are not studied. Therefore, this paper is studying management of facilities transformation under the three pillars of project management triangle (time - efficiency - cost) to reach to the maximum quality in the management of the transformation of existing facilities for the construction of new projects and facilitate traffic in old-crowded cities. Two multi criteria decision making methods were applied here for evaluating different alternatives or scenarios for a real case study to solve a problem of converting a large collector sewer in the residential area of KitKat district in Cairo for the construction of the third line of the underground metro within the framework of the project management. For this purpose, a questionnaire was designed and sent to many experts to use its results in the decision making. Results of the used tools gave the same priority for a certain scenario over the others. The selected scenario could achieve the management triangle pillars efficiently.