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Public authorities and governments in many nations ensure to assign the operations management of existing PPP projects and for financing new projects to the private sector. This approach adds a lot of benefits for all parties. These benefits included risks’ mitigation, cost savings regarding governmental expenditures, service enhancement, employment opportunities, and improvement in economic indices. This approach called public-private partnership (PPP) (Yescombe, 2007). Due to their complexity, nature and their long duration, PPP projects are usually more difficult to implement than other procurement models. Previous research studies on several PPP projects indicated that a number of problems exist in the calculations of the project’ returns. Additionally, it is explicit that there is a need for an objective, reliable and practical returns’ assessment model for PPP projects with regards to the different factors that might affect theses estimated returns. The required model will help decision makers and investors to assess the revenues of PPP projects at their early stages. To apply PPP projects in Egypt successfully, one of the fundamental requirements is to perform and implement a comprehensive analysis of Return on Investment (ROI), to do such analysis; it should include the factors affecting the ROI relating the projects’ influences such as; financial, legal, political, social . . . etc. According to the World Bank report, the private financial participation in Egypt has accounted $219,229.82 Million in the period from 1990 to 2000. This figure has increased to $998,667.36 Million in 2015 (World Bank ,2016).

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This study attempts to shed a great deal of light on the problem of contractor selection in the Egyptian infrastructure projects. This paper presents a comprehensive review of the available literature on contractor selection methods. Reviewing the literature we found that there are thirteen criteria that must be taken into consideration when evaluating the competition ability (i) Financial ;(ii) Health and Safety ;(iii) Technical; ;(iv) Quality;(v) Organization ;(vi) Relationship ;(vii) Past Experience ;(viii) Past Performance ;(ix) Resources ;(x) Environmental ;(xi) Management ; (xii) Present workload ;((xiii) Tendering price. The thirteen criteria have twenty seven sub-criteria that are collected from previous studies that influence the competition ability. The objective of this research is to study the contractor selection process and to develop an expert system that aids in assessing contractor selection in infrastructure tenders in Egypt. Interviews with domain experts were arranged. The results of questionnaire surveys have been analyzed in order to extract the knowledge which subsequently used to develop the expert system for tenders` evaluation (ES-TE). The system was tested against three actual cases and it is found that the system is valid for assessing the contractor selection in infrastructure tenders in Egypt. Finally, the expert program facilitates contractor selection instead of human judgment.