Understanding Preferences for Automated Mobility on Demand Using a Smartphone-Based Stated Preference Survey: A Case Study of Singapore

Ravi Seshadri, Lemuel Kumarga, Bilge Atasoy, Mazen Danaf, Yifei Xie, Carlos M. Lima Azevedo, Fang Zhao, Chris Zegras, Moshe Ben-Akiva

Research output: Contribution to conferencePaperResearchpeer-review

Abstract

The urban mobility landscape is witnessing widespread changes with the emergence of several disruptive technologies including mobility-as-a-service and automated vehicles. The convergence of these two developments in the form of automated mobility-on-demand (AMoD) services (i.e., a system of shared driverless taxis) is receiving growing interest from industry, governments and researchers worldwide as a promising solution to meet mobility needs in the future in a sustainable manner. However, there is a large degree of uncertainty surrounding the potential adoption of these systems, and their impact on individual travel/activity patterns and the transportation system as a whole. In this context, this paper attempts to gain insights into behavioral preferences and attitudes towards AMoD through a novel context-aware app-based stated preferences survey conducted in Singapore. The SP survey leverages a state-of-the-art smartphone-based platform (Future Mobility Sensing) and its ability to collect revealed preference (RP) and contextual data. Logit mixture models accounting for inter-person heterogeneity and panel effects were estimated on a sample of 2500 observations from 350 respondents. The results indicate the presence of heterogeneity in the valuation of in-vehicle travel time and out-of-vehicle travel time and significant differences across demographic categories. An analysis of price elasticity of demand for AMoD indicates a higher elasticity for AMoD taxi followed by AMoD shared19 taxi and AMOD mini-bus. The importance of modeling inertia in switching from the currently used mode is also highlighted. The results have important policy implications and the models have applications within detailed activity-based microsimulation models to examine the impact of AMoD in future scenarios.
Original languageEnglish
Publication date2019
Publication statusPublished - 2019
Event98th Annual Meeting at the Transportation Research Board (TRB) - Washington D.C., United States
Duration: 13 Jan 201917 Jan 2019
Conference number: 98

Conference

Conference98th Annual Meeting at the Transportation Research Board (TRB)
Number98
CountryUnited States
CityWashington D.C.
Period13/01/201917/01/2019

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