A 3-dimensional map of California showing total TNC trips per square mile by zip code. Trip density is represented by height and by color scale from gray to orange. Zip codes with few or no trips are flat and gray. Zip codes with more trips per square mile are progressively taller and darker shades of orange. The map shows a tall cluster of dark orange towers in San Francisco, followed by a cluster of medium-orange towers in Los Angeles, shorter and covering a larger area than San Francisco.


The San Francisco County Transportation Authority has released “TNCs 2020: A Profile of Ride-Hailing in California,” the first comprehensive study of ride-hailing activity statewide, based on an analysis of annual reports filed by Uber and Lyft to the California Public Utilities Commission.

The TNCs 2020 report presents findings on a range of topic areas: Reporting Compliance and Integrity, General Characteristics, Public Safety, Labor, Environment, and Accessibility. The study focuses on Annual Reports from 2020, the first year the reports became available. 

Key Findings

  • Inconsistent and incomplete data reporting means Annual Reports filed by Uber and Lyft do not provide a clear accounting of ride-hailing activity and impacts. This means it is not possible to determine even basic facts such as the number of trips that occured.
  • Uber and Lyft trips are highly concentrated in the urban areas of San Francisco, Los Angeles and San Diego counties, and San Francisco has 500 times more trips per square mile than the rest of the state.
  • Lyft reports three times more total public safety incidents per trip than Uber, and 30 times more assaults and harassments per trip. But the rates suggest the companies may be reporting public safety incidents differently, pointing to the need for increased review by regulators.  
  • Uber and Lyft drivers may violate legal drive-time limits, with 1.3 million driver-days exceeding California’s 10-hour drive time for drivers providing passenger transportation.  Due to limitations in the Annual Report data requirements, this report cannot confirm that such drive-time violations have occurred.
  • Lyft’s incomplete reports prevent environmental oversight. Uber produced an estimated 494,000 metric tons of CO2 in 2020.
  • Half of wheelchair-accessible trip requests statewide go unfulfilled, and Uber provides 16 times as many wheelchair-accessible trips as Lyft.


Read the interactive report

Download report and appendices (PDF)

Download Board presentation (PDF)

Press release


Joe Castiglione, Deputy Director for Technology, Data, and Analysis

Drew Cooper, Senior Transportation Modeler


Public engagement

April 25, 2023 Transportation Authority Board

Board presentation (PDF) 

Related programs


This report provides the first comprehensive estimates of Uber and Lyft activity in the city.

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