On-Demand Ridesourcing

Uber and Lyft have made San Francisco’s traffic much worse, study says

May 8, 2019

picture of vehicles

Ride-hailing services like Uber and Lyft are so popular in San Francisco that they have become the single biggest factor behind the city’s increasingly snarled traffic, according to a new report.

Just A Better Taxi? A Survey-Based Comparison of Taxis, Transit, and Ridesourcing Services in San Francisco

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

In this study, we present exploratory evidence of how “ridesourcing” services (app-based, on-demand ride services like Uber and Lyft) are used in San Francisco. We explore who uses ridesourcing and for what reasons, how the ridesourcing market compares to that of traditional taxis, and how ridesourcing impacts the use of public transit and overall vehicle travel. In spring 2014, 380 completed intercept surveys were collected from three ridesourcing “hot spots” in San Francisco. We compare survey results with matched-pair taxi trip data and results of a previous taxi user survey.

Uber and Lyft are driving toward IPOs

October 18, 2018

Uber and Lyft already compete in ride-hailing, ride-sharing, bike-sharing and e-scooters. Next year, they'll be competing for investors, too: Both companies are reportedly planning initial public offerings for early 2019.

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.