ABSTRACT
This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book focuses on the temporal aspects of day-to-day travel behaviour, which includes the concept of activity scheduling, basic results on human mobility and an analysis of the temporal rhythms of human space-time behaviour. It provides a framework for the analysis of spatial aspects of day-to-day mobility and presents results on the variability of human activity space. The book also focuses on the introduction of the activity-based-analysis (ABA) tradition within mobility research, the relevant terminology of the space-time travel relationship as well as concepts and findings of earlier work on the subject. It describes the different data sources and clarifies differences between the observation approaches, especially between travel-diary surveys and in-vehicle GPS tracking. The book also provides a consistent definition of the units of measurement for human movement.
