Analyzing changes in travel behavior in time and space using household travel surveys in Seoul Metropolitan Area over eight years

Travel is derived from activity participation. Details of activity participation are strongly affected by social settings and transportation system. Understanding the changes in travel behavior is essential to comprehending the association between travel behavior and the settings. The paper aims at analyzing the changes in travel behavior over the last 8 years using household travel survey data collected in Seoul Metropolitan Area (SMA) in 2002, 2006 and 2010, respectively. Changes of travel behavior were identified from the overall sample, and the detailed aspects of the changes were further investigated. The results show that the temporal and spatial characteristics of changes in travel behavior were interpretable regarding socio-economic/regional characteristics and travel characteristics. Implications of the results are discussed in the final section.