Strategic Planning of Water System Projects in Alexandria

Alexandria is one of the major cities on the Mediterranean Sea. Over the past 40 years, Alexandria‟s population has doubled. Therefore Water requirements are continuously increasing due to population increase. This paper develops a framework to support decision-makers in water sector for planning major projects in Alexandria till 2037. Firstly, data gathering has been conducted and population forecasting is calculated by arithmetic and geometric methods then the future water demands are calculated, after that major projects outline is proposed. Finally the projects priorities will be determined by applying two methods of solving Multiple Criteria Decision Making MCDM problems. The first method is The Weighted Scoring Method; WSM is a powerful and flexible method of comparing similar items against a standard, prioritized list of requirements or criteria. The second method is Analytical Hierarchy Process. AHP is based on comparative evaluation method. Then Results will be analyzed. First, it was focused on the difference of the criteria weight of alternatives between the two methods. Second, it was compared the preference orders of alternatives between them, there were not much of differences in the final results. The results offered some evidence that AHP makes the selection process very transparent