On-Demand Ridesourcing

Shared Mobility: The Potential of Ride Hailing and Pooling

Susan Shaheen, PhD

Shared mobility with pooled rides is the linchpin for leveraging vehicle automation and electrification to reduce congestion and emissions and to create livable urban communities. The sharing of rides is older than horse-and-buggy travel. Recent innovations make sharing easier, more convenient, and more efficient. Innovative mobility services premised on pooling can lower travel costs, mitigate congestion, and reduce greenhouse gas emissions. They also offer travelers more mobility choices between the traditional bookends of auto ownership and public transit.

Lyft Is Paying People to Stop Driving for a Month

September 26, 2018


An incentive program points to the company’s ambitions beyond ride-hailing

Trends and Trajectory of Shared Mobility

Susan Shaheen, PhD


• Carsharing: History, Worldwide and North America Growth, Personal Vehicle Sharing, and Autonomous Vehicles

• Public Bikesharing: History, Worldwide and North American Growth, and North American Operations

• Ridesharing / Ridematching: History and Current Status 

Shared-Use Mobility Summit: Retrospective from North America’s First Gathering on Shared-use Mobility

Susan Shaheen, PhD and Matt Christensen

Shared-use mobilitythe shared use of a vehicle, bicycle or other low-speed modeis an innovative transportation solution that enables users to have short-term access to a transportation mode. In North America, shared-use mobility encompasses the submarkets of carsharing, bikesharing, ridesharing, on-demand ride services, scooter sharing, shuttle services, and other emerging industries. In October 2013, the University of California, Berkeley’s Transportation Sustainability Research Center (TSRC) hosted the inaugural Shared-Use Mobility Summit in San Francisco, California.

App-Based, On-Demand Ride Services: Comparing Taxi and Ridesourcing Trips and User Characteristics in San Francisco

Lisa Rayle, Susan Shaheen, PhD, Nelson Chan, Danielle Dai, and Robert Cervero

The rapid growth of on-demand ride services such as uberX and Lyft, or “ridesourcing,” has prompted debate among policy makers and stakeholders. At present, ridesourcing’s usage and impacts are not well understood. Key questions include: how ridesourcing and traditional taxis compare with respect to trip types, customers, and locations served; whether ridesourcing complements or competes with public transit; and potential impacts on vehicle kilometers traveled. We address these questions using an intercept survey.

Shared-Use Mobility: What Does the Future Hold?

Susan Shaheen, PhD and Matthew Christensen, MPL

On Sunday, January 11, 2015, Professor Susan Shaheen from the University of California, Berkeley and Jeffrey Chernick from RideAmigos led a one-day workshop on the present and future of shared-use mobility at the Transportation Research Board annual meeting in Washington, DC. The workshop featured speakers representing the various shared-use modes, other private sector representatives, and public sector officials, and many topics were discussed.

Mobility and the Sharing Economy: Impacts Synopsis – Spring 2015

Susan Shaheen, PhD, and Nelson Chan

Shared-use mobility includes carsharing, personal vehicle sharing (or peer-to-peer (P2P) carsharing), bikesharing, scooter sharing, shuttle services, ridesharing, and on-demand ride services. It can also include commercial delivery vehicles providing flexible goods movement. Shared-use mobility has had a transformative impact on many global cities by enhancing transportation accessibility while simultaneously reducing ownership of personal automobiles.

Shared Mobility: Definitions, Industry Developments, and Early Understanding

Susan Shaheen, Nelson Chan, Apaar Bansal, and Adam Cohen

Shared mobility – the shared use of a vehicle, bicycle, or other mode – is an innovative transportation strategy that enables users to gain short-term access to transportation modes on an “as-needed” basis. The term shared mobilityincludes various forms of carsharing, bikesharing, ridesharing (carpooling and vanpooling), and on-demand ride services. It can also include alternative transit services, such as paratransit, shuttles, and private transit services, called microtransit, which can supplement fixed-route bus and rail services.

Multimobility and Sharing Economy: Shaping the Future Market Through Policy and Research

Susan Shaheen, Adam Stocker, Abhinav Bhattacharyya

TRB’s E-Circular 210: Multimobility and Sharing Economy: Shaping the Future Market Through Policy and Research Multimodal explores the results of a workshop that focused on new developments in the shared-mobility sphere, the use of smartphones in pushing the goal of shared mobility forward, and on rural and suburban mobility problems. It also raised the issue of equity for paratransit options in relation to innovative transportation modes and touched on strategies that could foster an environment of increased inclusion.