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Projects & Studies

We plan, fund, and deliver projects large and small across the city.

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Rendering of the new West Side Bridges, connecting Treasure Island Road to Hillcrest Road and the Bay Bridge

West Side Bridges Retrofit

The West Side Bridges Retrofit will seismically retrofit eight existing bridge structures along Treasure Island Road to meet current seismic safety standards.
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Aerial view of Evans Ave after Quick Build

Bayview Street Safety and Truck Relief Study

The study will develop a more complete understanding of how freight activity impacts the neighborhood and identify strategies to reduce conflicts between large trucks and other road users.
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People walking on Clement past Green Apple bookstore

District 1 Multimodal Transportation Study

The District 1 Multimodal Transportation Study will engage the community to identify known mobility challenges and develop near- to long-term strategies to improve transit reliability and safety and shift trips to transit, walking, biking, or other non-driving options.
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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.

TNCs 2020: A Profile of Ride-Hailing in California

TNCs 2020: A Profile of Ride-Hailing in California is 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.
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An illistration of Downtown San Francisco. the high-rise buildings bear a distinct resemblance to one of the graphs in this report.

Downtown Travel Study

San Francisco’s downtown has experienced profound changes since the COVID-19 pandemic and the report focuses on a profile of the northeast sector in 2023-2024.
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Pedestrians and ride-hail vehicles

TNCs and Congestion

This report provides the first comprehensive analysis of how Transportation Network Companies Uber and Lyft collectively have affected roadway congestion in San Francisco.
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An uber vehicle

TNCs Today (2017)

This report provides the first comprehensive estimates of Uber and Lyft activity in the city.
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Map of the project study area, bounded by 7th St, 16th St, 3rd St, and Channel St

Mission Bay School Access Plan

This project will analyze connectivity between a new public school site in the Mission Bay neighborhood, the existing low-stress active transportation network, and existing and planned transit. The project will then design infrastructure improvements to mitigate key barriers to active transportation. The project will also coordinate expected transportation programs and improvements from projects in the area to ensure school access is supported.
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TNC vehicle on Market Street with transit and a bicyclist

The TNC Regulatory Landscape

This report provides an overview of existing state and local regulatory frameworks focusing on ride-hail companies, also known as TNCs.
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A freeway ramp intersection with cars, people walking, and people biking

SoMa Freeway Ramp Intersection Safety Studies

The Transportation Authority has been studying how to improve safety at 15 SoMa intersections where freeway on- and off-ramps meet city streets.
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A child getting into a Prius with help from a school aide

Child Transportation Study

Getting children to school and aftercare in San Francisco is often challenging, particularly for households with multiple children, each of whom may be bound for different destinations.
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Photo of student getting into parent's car at school

School Access Plan

The Transportation Authority is creating a School Access Plan for San Francisco to recommend transportation solutions for K-5 students and their families.
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People standing on a sidewalk with phones and a ride-hail vehicle dropping someone off

Emerging Mobility Evaluation Report

This report provides the first comprehensive look at the rapidly evolving emerging mobility sector in San Francisco.
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A rendering of the new restrooms to be built near the Treasure Island Ferry Terminal.

Treasure Island Ferry Terminal Enhancements Project

The Treasure Island Ferry Terminal Enhancements Project will construct new transit shelters and public restrooms.
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Two Muni Metro light rail vehicles pass each other on Taraval at 19th Avenue

Westside Network Study

The Westside Network Study will analyze the multimodal westside transportation network and offer recommendations to ensure the network is meeting local needs now and into the future.

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415-522-4800

1455 Market Street, 22nd Floor
San Francisco, CA 94103
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