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San Francisco Health Network
Environmental Health

Transportation and Health


Vision Zero San Francisco

Vision Zero SF is San Francisco’s policy and commitment to eliminate traffic deaths by 2024.  PHES Director Megan Wier Co-Chairs the Citywide Task Force, and PHES staff play a lead role in Data Systems and Evaluation for Vision Zero. Vision Zero consists of multiple projects.

TransBASESF is an innovative relational database management system developed and designed by PHES to access, manage, and apply spatial data to inform solutions to transportation problems, is a key source of data inputs into Vision Zero SF analyses.  The beta was also the key data input to WalkFirst, San Francisco’s award-winning, data-driven approach to pedestrian safety capital planning investments. 

Transportation-Related Injury Surveillance System

The San Francisco Department of Public Health with the Zuckerberg San Francisco General Hospital and Trauma Center (ZSFG) is working with multiple city agencies to develop a comprehensive Transportation-related Injury Surveillance System to conduct accurate, coordinated and timely monitoring of transportation-related injuries and deaths in support of safety project prioritization, evaluation, and monitoring for the City’s Vision Zero policy.

Vision Zero Fatality Protocol and Tracking

PHES staff worked with transportation agency and police department staff to create a citywide protocol to monitor traffic deaths, which are tracked and reported on a monthly basis.

Vision Zero High Injury Network

PHES staff developed San Francisco’s Vision Zero high injury network in consultation with the SF Municipal Transportation Agency. The network identifies high injury corridors where targeted Vision Zero investments can help save lives and reduce severe traffic injuries. The Network was updated in 2017 for the first time utilizing linked data from the San Francisco Police Department and Zuckerberg San Francisco General Hospital. High Injury Network documents available include:

Addressing Barriers to Health Care Access for Vulnerable Populations

Land use and transportation planning are integral elements to providing equitable health care access. Access to health care services is associated with better overall health, higher use of preventative health services, lower rates of preventable hospitalizations, and overall health care costs. Lack of transportation is a leading barrier to access, and disproportionately burdens the poor, people of color, and those with disabilities. Addressing and removing transportation and geographic barriers can improve access to health services, improve health outcomes, and reduce health disparities.

The Potrero Hill Health Center (PHHC) is a safety-net clinic in San Francisco that was initially built to serve the nearby public housing developments and now serves patients from across the city. However, patients face multiple barriers in accessing health care services at PHHC, because patients are traveling farther distances to the clinic, there is steep terrain surrounding the clinic and the bus line re-routing in 2009 eliminated some stops so patients needed to walk further to catch a bus.

SFDPH and PHHC staff conducted an assessment to better understand the transportation and geographic barriers PHHC patients face, how these barriers affect their access to health care services, and what their potential health impacts are. Staff then worked with SFMTA to identify and implement solutions to address those issues, including increased coordination to ensure patient access to paratransit services to get to and from the clinic.