Identification and Classification of Bus and Subway Passenger Travel Patterns in Beijing Using Transit Smart Card Data

Table 1

Smart card data format.

Field	Definition
CNID	Card number. Each smart card has a different card number.
Trip	Itinerary number. Each trip has a different itinerary number.
SubTrip	Subtrip number. Number of increments in each trip: if the trip does not include a transfer, the column will be 0; if it includes transfer, it will increase from 1.
TrTp	The mode of transportation used in the trip. 1 = bus only. 2 = subway only. 3 = bus and subway.
SubtrTP	The type of transportation mode used in the subtrip. b = bus, s = subway.
T1	The time that passengers swipe their cards at the boarding station.
STATION1	The name of the boarding station.
lon1	The longitude of the boarding station.
lat1	The latitude of the boarding station.
T2	The time that passengers swipe their cards at the alighting station.
STATION2	The name of the alighting station.
lon2	The longitude of the alighting station.
lat2	The latitude of the alighting station.