People walking and biking in SoMa intersection

The Transportation Authority launched a new study, funded by a Caltrans Planning Grant and Prop K half-cent local transportation sales tax, to plan safety improvements at 10 South of Market intersections where freeway ramps intersect city streets. Serving fast-moving traffic, many of these ramps are located close to public schools, single room occupancy hotels, and senior centers, which attract people at high risk of injury from traffic collisions. The study follows a smaller study funded by our Neighborhood Transportation Improvement Program, also known as NTIP, to plan near-term improvements at five similar intersections. 

The Transportation Authority, Caltrans and the SFMTA are conducting studies to develop recommended safety improvements for all travelers through these intersections, especially the most vulnerable populations, and to support progress towards the City's Vision Zero goal to eliminate traffic fatalities by 2024.

Vision Zero Ramp Study 1: Pedestrian Safety in SoMa Youth and Family Zone

The area in the South of Market neighborhood designated as a Youth and Family Zone includes multiple locations where freeway on- or off-ramps intersect city streets. These ramp intersections tend to have particularly high frequencies of traffic injuries and fatalities. The Transportation Authority and the SFMTA developed recommendations for improving safety at five ramp intersections within this zone. The Transportation Authority Board adopted the study Final Report in May 2018.

Vision Zero Ramp Study 2: Improving Street Safety in the Greater SoMa Neighborhood

The Transportation Authority has received Caltrans grant funding to evaluate 10 additional ramp intersections within the greater South of Market neighborhood, building from the first study. The Transportation Authority and SFMTA are currently studying the additional intersections and will develop recommendations for improving safety at at these intersections as well.

Freeway ramp intersections in SoMa

There are 22 intersections in SoMa where freeway on- or off-ramps intersect city streets. This map shows all of the projects and plans that are underway at these intersections. The Transportation Authority is working to improve safety at 15 of these intersections through the studies outlined above.

Map of all project intersections