Data-Driven Approaches to Mining Passenger Travel Patterns: “Left-Behinds” in a Congested Urban Rail Transit Network

Table 2

Estimation variables.

Variable	Definition
	The mean of access walking time at station , .
	The variance of access walking time at station , .
	The mean of egress walking time at station , .
	The variance of egress walking time at station , .
	The mean time consumed transferring from to .
	The variance of time consumed transferring from to .
	The mean of platform waiting time at station during off-peak hours, .
	The variance of platform waiting time at station during off-peak hours, .
	The mean number of times passengers are left-behind on platform .
	0-1 binary variables: 1 if trajectory of passenger contains space-time-sequence arc ; 0 otherwise.