Rein Ahas Lecture by Prof. em. Kay Axhausen

“Activity Space from idea to measurement“ In this Rein Ahas Lecture, Prof. Axhausen will touch upon the activity space concept from idea to measurement to reflect its evolution in relation to the emergence of mobile big data. Transport planning and related behavioural research have long assumed that individuals have well-defined activity spaces, long before their precise measurement was feasible. The talk will begin with a discussion of the basic idea and its difficulties of capture. The talk will then discuss today’s possibilities for capturing them using GPS, GSM, and other big data sources. It will conclude with recommendations for their affordable measurement. Dr. K. W. Axhausen is Professor emeritus of Transport Planning at the Eidgenössische Technische Hochschule (ETH) Zürich. Before he worked at the Leopold-Franzens Universität, Innsbruck, Imperial College London, and the University of Oxford. Over the past 40 years, he has worked on measuring and modelling movement behaviours, making significant contributions to the scientific literature in areas such as stated preferences, microsimulation of travel behaviour, accessibility, evaluation of travel time and its components, parking behaviour, activity timing, social networks, and the collection of travel diary data, including GPS tracking. His current work focuses on the electric bicycle city project.