Figure 8.2 shows trends on carsharing in North America. It is not clear where market saturation is, and whether the dip in 2015 is just a data issue or indicative that perhaps ridesharing is stealing some carsharing thunder. Notably carsharing company Shift shuttered in Las Vegas in mid-2015.
From Levinson and Krizek (2015) The End of Traffic and the Future of Transport.
Figure 8.2 Source: Shaheen, Susan and Adam Cohen (2015) Innovative Mobility Carsharing Outlook: Carsharing Market Overview, Analysis, and Trends – Summer 2015 .