The study examined how better to incorporate social and environmental criteria into the planning and appraisal of major infrastructure projects. The choice of focus of the study reflected the significant shift of thinking at the time by the Institute of Civil Engineers and the Actuarial Profession toward the belief that sustainable development has critical implications for the planning, appraisal and delivery of all major infrastructure projects, and that this particularly affects environmental and social factors which pose potentially serious risks for project management and implementation of major projects in light of the limited coverage of these areas by traditional planning and appraisal approaches to date. The project concluded with the recommendation that Policy-Led Multi Criteria Analysis (PLMCA) provides a suitable (transparent) framework for presenting and assessing the relevant factors of sustainable development of major infrastructure appraisal as a basis for decision-making throughout different phases of the project lifecycle and offered an outline approach on how to apply such an approach.