Karen Witten is a geographer and Professor of Public Health at Massey University. Her research focuses on neighbourhood design and how housing, transport and amenity access influence the everyday mobility, health and wellbeing of residents. Her work is interdisciplinary and has had a particular focus on the wellbeing of children and people with disabilities.

Prof Currie is a transport research leader/ policy advisor and Directs the Public Transport Research Group (PTRG) at Monash University Australia. In 2015 PTRG was identified as one of the top 3 research groups in the world in this area by an independent European review. Graham has published more research papers in leading peer journals in this field than any other researcher. For the last 7 years he has chaired the Light Rail Transit Committee at US Transportation Research Board. He is also a member of the Singapore LTA Research Advisory Board and the Swedish Centre for Research on Public Transport international advisory board. He has won numerous research prizes including best research paper; 14th World Conference on Transport Research in Shanghai, he has won the William W Millar prize for best research paper in public transit at the US TRB conference twice, the only person ever to do so. In 2020 he was presented with the Transport Medal for outstanding contributions to transport by Engineers Australia. Professor Currie has led many transport research projects in all major cities in New Zealand and has been a peer reviewer for numerous NZTA projects in New Zealand over the last 2 decades.