Carsharing

Carlink: A Smart Carsharing System— A Study of Behavioral Adaptation

Susan A. Shaheen, Ph.D
2000

Most trips in U.S. metropolitan regions are drive-alone car trips, an expensive and inefficient transportation form. A more efficient, but often less convenient, system allows drivers to share cars. Carsharing organizations are becoming common throughout Europe and North America. Shared-use vehicles offer a modal alternative that can make metropolitan regions more livable.

Carlink – A Smart Carsharing System Field Test Report

Susan Shaheen, Ph.D., John Wright, David Dick, and Linda Novick
2000

Most trips in U.S. metropolitan regions are driven alone, which is costly to individuals and society and leads to congestion and air pollution. A more efficient, but less convenient system would allow drivers to share cars. A shared-use system aims to reduce traffic by reducing the number of cars needed by households and encouraging commuters to walk, bike, and use transit, at least for part of their trips. For commuters especially, shared-use vehicles could offer a low-cost, low-hassle alternative to private vehicles.

CarLink Economics: An Empirically-Based Scenario Analysis

Susan Shaheen, PhD and Robert Uyeki
2000

Most cars carry one person and are used for less than one hour per day. A more economically rational approach would be to use vehicles more intensively. Carsharing, in which a group of people pay a subscription plus a per-use fee, is one such strategy. Smart carsharing employs advanced technology to facilitate tracking, billing, and system management. CarLink, a smart carsharing system, was deployed in the San Francisco Bay Area for ten months in 1999 to test this concept.

The CarLink II Pilot Program: Examining the Viability of Transit-Based Carsharing

Susan Shaheen, PhD and John Wright
2001

The automobile is the dominant travel mode throughout the U.S., while transit accounts for less than four percent of market share. Between these principal modes, niche markets exist for other transportation services, such as transit feeder shuttles and carsharing. Commuter-based carsharing, in which individuals share a fleet of vehicles linked to transit, could potentially fill and expand one such niche, complement existing services, and develop into an economically viable transportation alternative.

The CarLink II Pilot Program: Testing a Commuter-Based Carsharing Model

Susan Shaheen, PhD and John Wright
2001

The automobile is the dominant travel mode throughout the U.S., while transit accounts for less than four percent of market share. Between these principal modes, niche markets exist for other transportation services, such as transit feeder shuttles and carsharing. Commuter-based carsharing, in which individuals share a fleet of vehicles linked to transit, could potentially fill and expand one such niche, complement existing services, and develop into an economically viable transportation alternative.

CarLink II: Research Approach and Early Findings

Susan Shaheen, Ph.D, John Wright
2001

In this report, the authors describe the key differences between the CarLink I and CarLink II models; describe in detail how feedback from focus groups guided and refined various aspects of the CarLink II project – both for marketing and logistics; and, in the appendix, the authors present the protocol and summary of each focus group.

Examining Intelligent Transportation Technology Elements and Operational Methodologies for Shared-Use Vehicle Systems

Matt Barth, Michael Todd, Susan Shaheen, PhD
2002

As an innovative mobility solution, there has been significant interest and activity in shared-use vehicle systems. Shared-use vehicle systems (i.e., carsharing, station cars) consist of a fleet of vehicles that are used by several different individuals throughout the day. Shared-use vehicles offer the convenience of a private automobile and more flexibility than public transportation alone. In recent years, varying degrees of intelligent transportation system technologies have been applied to shared-used systems, providing better manageability and customer service.

Carsharing in the United States: Examining Market Potential

Susan A. Shaheen, Ph.D.
2002

The automobile is the dominant travel mode throughout the U.S., while transit accounts for less than four-percent of market share. Between these principal modes, niche markets exist for other transportation services, such as transit feeder shuttles and carsharing. Carsharing, in which individuals share a fleet of vehicles distributed at neighborhoods, employment sites, and/or transit stations, could potentially fill and expand one such niche; complement existing services; and develop into an economically viable transportation alternative.

Davis Smart Mobility Model: Initial Scoping and Planning Study

Susan Shaheen, Ph.D, Rachel Finson
2003

This report reflects an initial scoping that is intended to inform a broader multi-year project at the University of California, Davis. The University of California, Davis is addressing projected growth scenarios in its Long-Range Development Plan and is interested in innovative transportation projects that will increase the mobility of the University community while improving and sustaining high environmental and social standards in planning objectives.

Unsafe at Any Speed?: What the Literature Says About Low-Speed Modes

Caroline Rodier, Ph.D, Susan Shaheen, Ph.D, Stephanie Chung
2003

The literature is reviewed on the safety of low-speed modes in the pedestrian environment, including walking, bicycling, skating, skateboarding, riding scooters, and operating wheelchairs, as part of a research and feasibility analysis of a pilot project that introduces shared Segway Human Transporters (HT), electric bikes, and bikes linked to a suburban Bay Area Rapid Transit (BART) District station and employment centers in Northern California.