Sir Tony May is Emeritus Professor of Transport Engineering, University of Leeds, having 50 years' experience in transport planning and traffic engineering. He is still active in research, consultancy and professional development. Professor May has until recently been Editor-in-Chief of the European Transport Research Review and Secretary General of the World Conference on Transport Research Society.

Professor Emberger is Head of the Research Center of Transport Planning and Traffic Engineering, Institute of Transportation at Vienna University of Technology. His research focuses on transport related air pollution, transport system user behavior analyses; land use-, transport- and traffic modeling; and system dynamics.