Automated Mobility-on-Demand Service Improvement Strategy through Latent Class Analysis of Stated Preference Survey

Table 2

Attribute level.

Variable	Level
Vehicle type	Van type (conventional type) and shuttle type (driverless type)
Arrival time (min)	5, 10, 15
Access time (min)	3, 5, 7
In-vehicle time (min)	20, 25, 30
Number of stops	2, 4, 6
Crowdedness level	3/10 (not crowded), 8/10 (crowded)
Seat choice system	Seat choice available, automatic seat assignment, seat choice after boarding