United States Department of Transportation
i
The Impact of the Sharing Economy on Latent Individual Modal Preference
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2017-04-01
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[PDF-2.95 MB]
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Edition:Final, 2013-2016
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Abstract:Mobility patterns in our cities are changing with the onset of shared mobility services. However, publicly available information on the use of shared mobility services is lagging behind. This study set out to fill this data gap by gathering web-based travel diary survey from carsharing and Transportation Network Company (TNC) users in the San Francisco Bay Area. Respondents were screened to be regular users of shared mobility services. The shared use reported in our sample was primarily car sharing and TNC, with bike sharing not being reported enough to be studied here. Our analysis drew on a convenience sample of 821 individuals, and all results are specific to our sample. Our objective was to use the data to provide insights on the shared mobility user base, environmental sustainability implications, and equity issues. Compared to the general population, the shared mobility users in our sample were more male, substantially younger, more middle income, and owned fewer cars. Regarding travel behavior, carsharing vehicles and TNCs were used for very different types of trips, with carsharing used mostly for longer-distance leisure trips, while TNCs were most often used for short work trips. Moreover, TNC trips were significantly more likely to start away from home whereas carshare trips are the most likely to end at home. On the subject of sustainability, daily VMT per capita in the sample was less than the average among demographically similar urban CHTS respondents, though not significantly so. A higher share of vehicle miles compared to the Bay Area CHTS were shared between more than one passenger, supporting the notion of relatively sustainable travel behavior for TNC/carshare users. The data indicate that time savings benefits were realized for many carless users. Finally, regarding equity, correlations with income suggest fewer potential benefits for lower-income populations.
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