Carsharing

Carsharing and the Built Environment: Geographic Information System-Based Study of One U.S. Operator

Tai Stillwater, Patricia Mokhtarian, and Susan Shaheen, PhD
2009

The use of carsharing vehicles over a period of 16 months in 2006-07 was compared to built environment and demographic factors in this GIS-based multivariate regression study of an urban U.S. carsharing operator. Carsharing is a relatively new transportation industry in which companies provide members with short-term vehicle access from distributed neighborhood locations. The number of registered carsharing members in North America has doubled every year or two to a current level of approximately 320,000. Researchers have long supposed that public transit access is a key factor...

North American Carsharing: A Ten-Year Retrospective

Susan Shaheen, PhD, Adam Cohen, and Melissa Chung
2009

Carsharing organizations (or short-term auto use) provide members access to a fleet of shared vehicles on an hourly basis, reducing the need for private vehicle ownership. This paper reflects a ten-year retrospective of carsharing in Canada and the United States (U.S.), including resultsfrom a 2008 operator survey. Since 1994, a total of 50 carsharing programs have been deployed in North America - 33 are operational, and 17 are defunct. As of July 1, 2008, there were 14 active programs in Canada and 19 in the U.S., with approximately 319,000 carsharing memberssharing over 7,500 vehicles in...

Demand for Carsharing Systems in Beijing, China

Susan Shaheen, PhD and Elliot Martin
2010

Rising auto ownership in China brings significant urban and environmental challenges. Since China is still in the early stages of motorization, there are opportunities to introduce alternatives to personal vehicle ownership. The authors conducted a survey with 800 Beijing residents; collecting data on transportation patterns, automobile ownership, environmental attitudes, and carsharing response. Fifteen of those participants were selected to complete an in-depth questionnaire discussing how they would use carsharing services. This paper assesses the potential for carsharing systems...

Innovative Mobility Carsharing Outlook - Spring 2020

Susan Shaheen, PhD and Adam Cohen
2020

Worldwide carsharing market overview, analysis and trends up to Spring 2020.

Impact of Carsharing on Household Vehicle Holdings: Results from a North American Shared-use Vehicle Survey

Elliot Martin, Susan Shaheen, PhD, and Jeffrey Lidicker
2010

Carsharing has grown considerably in North America during the past decade and has flourished within metropolitan regions across the United States and Canada. The result has been a new transportation landscape, which offers urban residents an alternative to automobility without car ownership. As carsharing has expanded, there has been a growing demand to understand its environmental impacts. This paper presents the results of a North American carsharing member survey (N = 6,281). The authors establish a “before-and-after” analytical design with a focus on carsharing’s impacts on...

Carsharing Parking Policy: Review of North American Practices and San Francisco, California, Bay Area Case Study

Susan Shaheen, PhD, Adam Cohen, and Elliot Martin, PhD
2010

Carsharing provides users access to a shared vehicle fleet for short-term use throughout the day, reducing the need for private vehicles. The provision of on-street and public off-street parking dedicated to carsharing is an important policy area confronting public agencies. As of July 2009, approximately 377,600 individuals were carsharing members in North America in about 57 metropolitan areas. Seventeen jurisdictions, one state (California), and eight public transit operators in North America have formal and informal carsharing parking policies, pilot projects, and proposed...

Shared Mobility Policy Playbook

Susan Shaheen, PhD, Adam Cohen, Michael Randolph, Emily Farrar, Richard Davis, and Aqshems Nichols
2019

The Shared Mobility Policy Playbook provides an introduction and definitions of shared mobility services, mode-specific resources for agencies looking to develop policies in their community, and policy-focused tools demonstrating case studies and best practices for shared mobility.

This playbook has been designed for individuals and practitioners who want to know more about shared mobility and to communities interested in incorporating shared mobility into their transportation ecosystem. It is a practical guide with resources, information, and tools for local governments,...

Carsharing Service ShareNow Has Left D.C. What Could Come Next?

March 3, 2020

photo of car2go vehicle

ShareNow — previously known as car2go — officially shut down its carsharing business in D.C. and North America over the weekend after eight years in the city. Despite its departure, experts say that carsharing isn’t struggling here in the D.C. region.

“Washington D.C. is actually one of the strongest marketplaces for these types of on-demand options in the entire United States,” said Susan Shaheen, a...

Innovative Mobility Carsharing Outlook - Winter 2020

Susan Shaheen, PhD and Adam Cohen
2020

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.

Carsharing's Impact and Future

Susan Shaheen, PhD, Adam Cohen, and Emily Farrar
2019

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...