Tyrrell Duncan Keywords transport transport management economist public policy expert sustainable low-carbon types of transport Read more about Tyrrell Duncan Tyrrell Duncan has over 30 years of experience in international development. As a technical advisor of ADB’s Transport Sector Group, he previously led the bank’s work on transport, which accounts for about a third of ADB lending. Previously he was transport director for East Asia, and bank-wide practice leader responsible for formulating ADB’s sector strategy for transport, the Sustainable Transport Initiative. He has degrees in economics and public policy.