Car transaction(increase/decrease/replacement)is an important determinant of car usage and other travel behavior affecting economic and environmental issues.The aim of this paper is to analyze the impacts of life events,change in attitude,and perceived train frequency on car transactions and usage change by car type using two three-year data(2011-2013 and 2012-2014)obtained from a Japanese household panel survey.We identified the statistically significant factors that affect car ownership in cross-sectional data and verified that their signs are the same when using longitudinal data.Fewer factors are found to affect car replacement than affect car ownership level change.Households that replace Kei-cars with normal cars do not increase mileage.
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