Stated Preference Survey and Intention Analysis of Autonomous Vehicle Purchase and Shared Autonomous Vehicle Service Use

Abstract

Assuming that fully autonomous vehicles (AV) are widespread and shared AV (SAV) services exist, this study conducted a stated preference (SP) survey on private AV purchase and mode choices. Specifically, after acquiring revealed preference (RP) data on the use of privately owned vehicles and the most frequent trips, we designed and executed an SP survey of AV purchase and mode choice based on the RP data, and modeled behavioral intention using mixed logit models. Results from the the private AV purchase model suggests that financial aspects such as the cost of private AV, and individual psychological factors purchase intention, rather than the level of service of SAVs. The mode choice model results suggest that the value of time for the SAV service, in which users are expected to ride with many other users, is higher, suggesting a larger disutility from travel. Nevertheless, it became clear that disutility of travel time was smaller than that of non-motorized modes.