Ruud Ummels is managing director at To70 Aviation. To70 was founded in 2000 in The Netherlands and has since expanded with offices in Europe, Australia, Asia and the Americas. Ruud has a broad knowledge in aviation, ranging from airport and airspace planning and optimisation studies to policy advice and the analysis of aviation’s environmental impacts. Ruud has led over 200 projects in over 25 countries. Having spent six years in the Asia-Pacific region, he has helped deliver significant growth at airports such as Melbourne, Bangkok, Singapore and Shanghai. His recent experience includes lead roles for the airport master plans at Amsterdam and Brussels, aircraft noise studies for Dublin and airspace studies in the Netherlands, London Gatwick and Istanbul. Working for airport operators, as well as air navigation service providers, airlines and aviation authorities, he understands the importance of engaging all stakeholders to ensure successful project delivery.