Ingrid Ballús Armet, Susan Shaheen, PhD, Kelly Clonts, and David Weinzimmer
2014
Peer-to-peer carsharing is an innovative approach to vehicle sharing in which vehicle owners temporarily rent their personal automobiles to others in their surrounding area. Peer-to-peer carsharing belongs to the larger sharing economy, an economic model premised on the notion of collaborative consumption as opposed to ownership. This study examined public perception of peer-to-peer carsharing and potential market characteristics through an intercept survey conducted in the San Francisco Bay Area, California. Three hundred respondents from 14 locations in San Francisco (n=150) and...
Carsharing offers consumers short-term access to vehicles, which facilitates better mobility and reduces the need for personal vehicle ownership. Carsharing does not require consumers to have automobile insurance. Instead, carsharing operators insure their members and are responsible for the risks and liabilities associated with vehicle use....
Carsharing continues to grow worldwide as a powerful strategy to provide an alternative to solo driving. The viability of electric vehicles, or EVs, has been exam-ined in various carsharing business models. Moreover, new technologies have given rise to electromobility, or e-mobility, systems. This paper discusses the evolution of e-mobility in carsharing business models and the challenges and opportunities that EVs present to carsharing operators around the world. Operators are now anticipating in-creased EV proliferation into vehicle fleets over the next 5-10 years as technology,...
Classic roundtrip carsharing has been documented as a strategy to reduce car ownership and vehicle miles/kilometers traveled in urban areas. The expansion of carsharing and other forms of shared-use mobility have led to a growing interest in understanding the latest models. In recent years, one-way carsharing has gained momentum across the globe with 18 operators providing services in ten countries worldwide. One-way carsharing does not require its users to return the vehicle to the same location from which it was accessed (in contrast to roundtrip carsharing). Users typically pay by the...
Susan Shaheen, PhD, Elliot Martin, and Hannah Totte
2020
Reducing carbon emissions from the United States (U.S.) transportation sector has emerged as a priority action to combat climate changeCarsharing and zeroemission vehicles (ZEVs) could be integral to creating a more sustainable transportation system. This paper presents the results of a study that evaluated the impacts of ZEV...
Susan Shaheen, PhD, Elliot Martin, PhD, and Mikaela Hoffman-Stapleton
2019
This paper advances the understanding of peer-to-peer (P2P) carsharing within the broader context of shared mobility and its connection to the built environment in the US through a survey conducted in 2014 (n = 1,151). Eleven per cent of respondents used carpooling/ridesharing more, and 19% avoided a vehicle purchase due to P2P vehicle access in urban areas. Nevertheless, P2P carsharing has the potential to operate in a range of land-use environments and could be an important strategy to further deemphasize car ownership. Additionally, as the deployment of automated vehicles (AVs) is...
Carsharing provides members access to a fleet of autos for short-term use throughout the day, reducing the need for one or more personal vehicles. This chapter reviews key terms and definitions for carsharing, common carsharing business models, and existing impact studies. Next, the chapter discusses the commodification and aggregation of mobility services and the role of Mobility on Demand (MOD) and Mobility as a Service (MaaS) on carsharing. Finally, the chapter concludes with a discussion of how the convergence of electrification and automation is changing carsharing, leading to...
Since 1998, 94 carsharing programs have been deployed in North America - 40 are operational and 52 are defunct. As of January 1, 2018, there were 18 active programs in Canada, 21 in the United States (U.S.), and one program in Mexico. In North America, carsharing membership totaled approximately 2,110,111 members sharing 23,376 vehicles. The three largest carsharing operators in the U.S. and Canada accounted for 91% and 86% of the total membership, respectively. Only one operator provided service in Mexico as of January 2018.
Elliot Martin, Adam Stocker, Aqshems Nichols, Susan Shaheen
2021
The study found that roundtrip carsharing in NYC mostly serves as a substitute for car rental, other personal vehicle modes, and personal vehicle ownership. The analysis showed that the broader pilot program had a modest impact on user behavior through carsharing (i.e., reduced vehicle ownership, reduced VMT, and mode shift). It also found that the pilot program likely expanded the membership base of carsharing to demographic cohorts that are traditionally underrepresented in carsharing populations (i.e., increased participation by lower education levels, lower household incomes,...
