Abstract
A comparison is made between the effects of three variable groups or factors—urban forms, sociodemographics, and attitudes—on the frequencies of trips for commuting, shopping, and leisure purposes. A structural equation model is developed as a common travel-purpose model and then modified for each travel purpose according to the outcomes of a survey conducted in Seoul, South Korea. The findings show that the strongest variable in each factor is the same as that shown in European and US research, but other strong variables in each factor and the relative strengths of the three factors differ according to travel purposes.
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