Understanding social processes of shopping destination choice - An approach to model stability and variability

Transport systems are affected by fundamental technical and social dynamics. For planners and researchers, travel demand
models are an important tool to gain insights into possible effects of these dynamics and to find appropriateways
of dealing with them. However, most state-of-the-art travel demand models underestimate social aspects of travel
choices, which we consider essential for understanding stability and variability of travel behavior. Based on a qualitative
interview study, the paper presents an interdisciplinary approach to consider social aspects for modeling shopping
destination choice. Starting point for our considerations is that people are social beings, moving around to build and
maintain relationships, and that these relationships only unfold in relation to overall sociotechnical structures. The interview
study provides evidence for relationships between stores and customers. Relationships can be distinguished in
two dimensions. First, in terms of the nature of a relationship: having a relationship either with the owner of a specific
store or towards specific brands. Second, in terms of the meaning: if the relationships is perceived meaningfull or obligatory.
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Findings are represented in a first modeling approach. The results show that the more seldom relationships to
owners of a store can be modeled easily, while the more typical relationships to brands require further research.