The appraisal of potential infrastructure or assets, as investments, looks at the benefits and costs of everything related to the investments, both now and into the future. Common benefits include ongoing rental or product sales, and salvage or residual value at end-of-life. Common costs include initial capital cost; ongoing operation and maintenance costs; refurbishment, renovation or retrofitting costs; and disposal costs at end-of-life. Infrastructure and assets here refer to buildings, roads, bridges, dams, pipelines, railways and similar, and to facilities, plant, equipment and similar. An appraisal of a potential investment assists in

• (For a single investment, or for each investment) Establishing whether it is worthwhile proceeding with the investment. In other words, is the investment viable?