ABSTRACT
The lack of earlier empirical analyses of activity spaces as geometric indicators of observed travel patterns over prolonged periods requires the development of suitable measures to operationalize the microgeographical concept. The combination of a unique geocode and purpose may be represented in a list which corresponds to the geographical visualization of travel and activity space. The destinations list, the like of which has never before been available in such detail, allows all to develop indicators which reveal the inherent spatial structure and to characterize the temporal phenomena of destination choice. In human geography, the concept of the confidence ellipse has never been applied to travel-diary data as such; however, the approach has been used to analyse social interaction based on activity-frequency or density data. The Kernel density measurement approach also originates from habitat analysis in biology. The enumeration approach focuses on how many places we actually know, visit and discover over time.
