TSRC

Travel Behavior: Shared Mobility and Transportation Equity

Susan Shaheen
Bell, Corwin
Adam Cohen
Yelchuru, Balaji
2017

Shared mobility—the shared use of a motor vehicle, bicycle, or other low-speed transportation mode that allows users to obtain short-term access to transportation on an as-needed basis—has the potential to help address some transportation equity challenges. In an effort to categorize the myriad of transportation equity barriers facing transportation system users, this primer proposes a ‘STEPS to Transportation Equity’ framework including: Spatial, Temporal, Economic, Physiological, and Social barriers. For each barrier category, shared mobility opportunities and challenges are explored...

Mobile Apps and Transportation: Exploring Data Metric Potential and User Response to Multi-modal Traveler Information (UCCONNECT)

Susan Shaheen
Martin, Elliot
Adam Cohen
Musunuri, Apoorva
Bhattacharyya, Abhinav
2016

In recent years, technological and social forces have pushed smartphone applications (apps) from the fringe to the mainstream. Understanding the role of transportation apps in urban mobility is important for policy development and transportation planners. This study evaluates the role and impact of multimodal aggregators from a variety of perspectives, including a literature review; a review of the most innovative, disruptive, and highest-rated transportation apps; interviews with experts in the industry, and a user survey of former multimodal aggregator RideScout users. Between February...

Lead with the Helmet

Adam Cohen
Martin, Elliot
2016

Bikesharing systems offer access to a shared network of bicycles deployed on public streets. Present-day systems use information technology to manage user interactions, and to manage the fleet of bicycles. Bikesharing systems can be station-based, in which users access bicycles at kiosks with automatic locks, or free-floating, in which self-locking bicycles are accessed within a geo-fenced area. Bikesharing generally permits point-to-point travel, providing users with flexibility to use the service as a first-mile/last-mile connection or as its own means from origin to destination....

Bikesharing and Bicycle Safety

Martin, Elliot
Adam Cohen
Susan Shaheen
Botha, Jan
2016

The growth of bikesharing in the United States has had a transformative impact on urban transportation. Major cities have established large bikesharing systems, including Boston, Chicago, Denver, Minneapolis-Saint Paul, New York City, Salt Lake City, the San Francisco Bay Area, Seattle, Washington DC, and others. These systems began operating as early as 2010, and no fatalities have occurred within the US as of this writing. However, three have happened in North America—two in Canada and one in Mexico. Bikesharing has some qualities that appear inherently unsafe for bicyclists. Most...

Carsharing and Public Parking Policies: Assessing Benefits, Costs, and Best Practices in North America

Susan Shaheen
Adam Cohen
Rodier, Caroline
Murray, Gail
Martin, Elliot
2017

At present, local jurisdictions across North America are evaluating how best to provide parking spaces to carsharing vehicles in a fair and equitable manner. Some have initiated implementation of carsharing parking policies, and many continue to evolve as the demand and need for carsharing grows. Many others are seeking guidance on carsharing parking, based on the fledgling experience of other cities. This study documents the state of the practice with respect to carsharing and parking policies in North America. The study begins by providing background on the evidence of carsharing...

Carsharing: A Guide for Local Planners

Adam Cohen
Susan Shaheen
McKenzie, Ryan
2008

Transportation issues can create seemingly no-win conflicts for planners, whether it's dealing with traffic demand management, wrangling over parking requirements, addressing quality of life issues that accompany too much traffic, or, most recently, trying to reduce vehicle emissions to forestall climate change. But, planners, take note: A new "product-as-service" approach to vehicle use, called carsharing, is springing up in major metropolitan markets, smaller districts, and university campuses all across the country. Where the conditions are right to support carsharing, these programs...

North American Carsharing: 10-Year Retrospective

Susan Shaheen
Adam Cohen
Chung, Melissa S.
2009

Carsharing (or short-term auto use) organizations provide members access to a fleet of shared vehicles on an hourly basis, reducing the need for private vehicle ownership. Since 1994, 50 carsharing programs have been deployed in North America–-33 are operational and 17 defunct. As of July 1, 2008, there were 14 active programs in Canada and 19 in the United States, with approximately 319,000 carsharing members sharing more than 7,500 vehicles in North America. Another six programs were planned for launching in North America by January 2009. The four largest providers in the United States...

Shared Automated Vehicle Toolkit: Policies and Planning Considerations for Implementation 2022

Susan Shaheen
Adam Cohen
Broader, Jacquelyn
Hoban, Sarah
Auer, Ashley
Cordahi, Gustave
Kimmel, Shawn
2022

Technology is changing the way people move and is reshaping mobility and society. The integration of transportation modes, real-time information, and instant communication and dispatch—possible with the click of a mouse or the touch of a smartphone app—is redefining mobility.

Shared Mobility: Managing Rights-of-Way, Developer Incentives, and Planning Principles

Adam Cohen
Susan Shaheen
2024

In this chapter, we provide an overview of the ways in which shared mobility can impact planning and policy making. First, we review shared mobility policies related to the curb and public rights-of-way management. In Section 5.2, the relationship between shared mobility and developer zoning regulations is discussed. In Section 5.3, we explore shared mobility and the planning process. In Section 5.4, we review the role of shared mobility and the built environment, including examples of how shared mobility can be employed in the sub-urban context. In Section 5.5, we discuss the importance...

Mobility 10X: Accelerating Transportation Innovation in California

Toth, Alan
Susan Shaheen
Podolsky, Laura
2026

The magazine features 10 stories that highlight the breadth and impact of the Resilient and Innovative Mobility Initiative's (RIMI's) work across the University of California Institute of Transportation Studies (UC ITS) campuses— Berkeley, Davis, Irvine, and UCLA. It also draws on related research funded through the UC ITS SB1 program, established by California’s Road Repair and Accountability Act of 2017, along with additional studies by UC ITS scholars and the broader research literature. Together, these efforts demonstrate how targeted research can achieve a 10x impact— shaping...