Andrew Marsay is a transport economist with some 40 years’ experience in the principles and practice involved in getting best value from transport infrastructure. His career-long commitment to seeing better infrastructure investment priorities is based on the understanding that good infrastructure investment decisions can provide the foundation for long-term economic growth. In contrast, even very large sums spent on infrastructure that is inappropriate to a nation’s circumstances, or delivered through inappropriate institutional forms, can result in huge waste of resources and damage a country’s economic growth prospects.