Brendan Gleeson is Director of the Urban Research Program at Griffith University, Brisbane. Before joining Griffith he was Deputy Director of the Urban Frontiers Program at the University of Western Sydney. His research interests include urban planning and governance, urban social policy, disability studies, and environmental theory and policy. Neil Sipe is Head of the Environmental Planning School at Griffith University and is an experienced urban researcher who has worked in North America and Australia. He has an extensive teaching record in the field of transport planning and in recent research has been the first Australian scholar to propose methods for defining and mapping transport exclusion.