Framework for Testing Innovative Transit Solutions: Case Study of CarLink, A Commuter Carsharing Program

Susan Shaheen, PhD and Linda Novick

Transit accounts for just two percent of total travel in the U.S. One reason for low ridership is limited access; many individuals either live or work too far from a transit station. In developing transit connectivity solutions, researchers often employ a range of study instruments, such as stated-preference surveys, focus groups, and pilot programs. To better understand response to one innovative transit solution, the authors employed a number of research tools, including: a longitudinal survey, field test, and pilot program.

Carsharing and Station Cars in Asia: Overview of Japan and Singapore

Matt Barth, Susan Shaheen, PhD, Tuenjai Fukuda, and Atsushi Fukuda

In recent years there has been significant worldwide activity in shared-use vehicle systems (I.e., carsharing and station cars). Much of this activity is taking place in Europe and North America; however, there has also been significant activity in Asia, primarily in Japan and Singapore. This paper examines the latest shared-use vehicle system activities in both of these countries, beginning with an historical review followed by an evaluation of their current systems.

Carsharing Continues to Gain Momentum

Susan Shaheen, PhD

With auto ownership and fuel costs rising, people everywhere are seeking alternatives to private vehicle ownership. Carsharing (or short-term vehicle rentals) provides such an alternative through hourly rates and subscription-access plans, especially for individuals and businesses in major cities with good access to other transportation modes, such as transit and carpooling. The principle of carsharing is simple: individuals gain the benefits of private vehicle use without the costs and responsibilities of ownership.

Growth in Worldwide Carsharing: An International Comparison

Susan Shaheen, PhD and Adam Cohen

Carsharing (or short-term auto use) provides a flexible alternative that meets diverse transportation needs across the globe, while reducing the negative impacts of private vehicle ownership. Although carsharing appeared in Europe between the 1940s and 1980s, it did not become popularized until the early 1990s. For nearly 20 years, there has been growing worldwide participation in carsharing. Today, carsharing operates in approximately 600 cities around the world, in 18 nations, and on four continents. Malaysia is operating a carsharing pilot, with a planned launch in 2007.

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

Tai Stillwater, Patricia Mokhtarian, and Susan Shaheen, PhD

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.

North American Carsharing: A Ten-Year Retrospective

Susan Shaheen, PhD, Adam Cohen, and Melissa Chung

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.

Demand for Carsharing Systems in Beijing, China

Susan Shaheen, PhD and Elliot Martin

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.

Innovative Mobility Carsharing Outlook - Spring 2020

Susan Shaheen, PhD and Adam Cohen

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

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).

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

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.