Greg is Professor of Transport Governance at the Institute for Transport Studies at the University of Leeds. He has researched issues surrounding the design and implementation of new policies for over 20 years covering a range of issues. He is an expert in climate and energy policy in the transport sector and is the Transport Decarbonisation Champion for EPSRC. He is the Principal Investigator on the DecarboN8 network where he is responsible for integrating a new place-based approach to decarbonising transport. Greg co-chairs the Commission on Travel Demand which has published influential studies on travel demand and shared mobility. He is the Secretary General of the World Conference on Transport Research Society and the Chair of the Special Interest Group on Governance. He has served as an advisor to the House of Commons Transport Select Committee and regularly advises local, national and international governments.