transaction data for travel behavior analysis and public
transport planning. Since then, various researches and case
studies were done on the data collected from public transport
smart card systems around the world. Morency et al [3]
explored the data mining techniques used to analyze the
spatial and temporal variability of Canadian pubic transit
network passengers using different card types. Asakura et al
[4], constructed a origin-destination (O-D) matrix using the
smart card data collected from Japan‘s public train network
and applied statistical analysis to study the change in
passengers‘ travel patterns when the train operator changed its
train timetable. Kim and Kang [5] also attempted a similar
research on Seoul public transit network by using the
transaction data collected from T-Money, South Korea‘s
electronic fare card system