This report reviews experiences with strategic infrastructure planning with a view to identify international best practices. Governments play a critical role in providing the framework for investment in the transport, energy and water infrastructure. However, long asset lives and large sunk costs make these investments particularly subject to risk and uncertainty. A long-term strategic plan that integrates specific projects reduces investment risk by setting out a stable set of priorities for future investment. This report is the product of a roundtable organised by the International Transport Forum at the OECD with the National Infrastructure Commission, designed to help inform the Commission of the wider infrastructure world.