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Abstract
Infrastructure is fundamental to both economic development and plays a crucial role in determining the quality of life of individuals and societies. In almost all parts of the world the need for new infrastructure assets or the need to moderniseobsolescent assets are stark. However, we live in a world where economic and demographic growth, coupled with severe underinvestment in infrastructure, has created an infrastructure deficit that some estimate would require an annual investment of over USS 2 trillion each year over the next 20 years.