We’re working closely with city partners and the Mayor’s Office to make streets safer across the city.
Along with Mayor Daniel Lurie’s office, the Department of Public Health has published the 2024 High Injury Network (HIN) map. The map identifies the San Francisco streets where the most severe and fatal traffic crashes happen. The 2024 HIN shows us where road safety in the city has improved, but it also highlights where we need to focus our efforts.
That tells us there are parts of the city where more work remains. We are evaluating a variety of tools, including quick-builds and traffic-calming measures, to make those roads safer. Compared with the 2022 HIN, the map has changed. Many of the streets with the highest volume of people and traffic remain on the HIN, however.
The 2024 HIN is a snapshot in time. It does not include many of the road-safety measures we adopted last year, including speed safety cameras (more on that later).
The 2024 HIN will work as a guide for Mayor Lurie’s keystone Street Safety Initiative. It brings a whole-of-city-government approach to make the city’s streets safer. The SFMTA, the Department of Public Health and the San Francisco Police Department are the lead agencies on this initiative. Together, we are working to improve traffic safety and ensure every San Franciscan can travel safely, regardless of age, ability or how they get around.
What is the High Injury Network?
The HIN is a tool that allows us to plan and prioritize areas of the city with the highest number of serious traffic-related injuries or fatalities. The 2024 HIN uses data from 2020 to 2024. Streets are added to the HIN if 10 or more people suffered fatal or severe injuries during that time. The 2024 HIN identifies the 13 percent of city streets where 74 percent of serious traffic injuries or fatalities occur.
Since the HIN is a data-driven snapshot in time, streets that have seen recent high-profile incidents may not meet the criteria to be included in the map. In other words, it shows us where serious incidents are concentrated over time but is not a real-time reaction to recent events.
The 2024 HIN closes out 10 years of Vision Zero work and now will guide future safety efforts. San Francisco was the first city to link serious incidents with health data from local and state hospitals, trauma centers and ambulance services.
The HIN does not tell us why incidents occur, nor does it offer solutions. Instead, it’s a planning tool that tells the city where to invest and add resources. Also, we do not limit our safety work to corridors on the 2024 HIN.
A five-block stretch of Townsend Street is no longer on the high injury network thanks to safety improvements like this separated bikeway.
Examples of what’s changed
Some corridors on the 2022 HIN improved enough to be dropped from the 2024 map. These include:
- California Street (18th Avenue to Arguello Boulevard): Transit and street safety improvements like daylighting, upgraded crosswalks and lane changes resulted in a 64 percent decrease in injury collisions in the first year alone. Collisions with the 1 California bus dropped by 89 percent over 18 months.
- Townsend Street (Third Street to Eighth Street): We reported a 52 percent drop in total collisions. This followed safety improvements like a separated bikeway, pedestrian pathway, bike signals, left-turn traffic calming and updated parking/loading and transit boarding islands. These also resulted in a 47 percent drop in bike-related collisions and 70 percent decrease in pedestrian collisions.
- Seventh Street (Harrison Street to Townsend Street): Injury incidents between 2016-2024 fell by 31 percent. This is due to such improvements as a protected bikeway, boarding islands, daylighting, signal retiming and pedestrian safety zones.
Our teams have painted thousands of curbs near schools, senior centers and libraries to make intersections more visible and clear of parked cars.
What’s happened since 2024
The HIN uses data between 2020-2024. But in 2025, we completed a number of safety-related street improvements that have yielded measurable results.
Among these is the city’s Automated Speed Enforcement camera program. We installed the cameras as part of a statewide pilot program. In the 33 locations where we’ve installed cameras, we’ve seen a 78 percent reduction in speeding, making those intersections safer.
We are expanding the city’s red light camera program, with enforcement at 25 approaches. Since 1997, we’ve seen a 66 percent citywide drop in injury collisions from red-light running.
We have painted red curbs at more than 2,300 school intersections as part of the state’s daylighting law. We are now expanding this work to the 2024 HIN locations and curbs near parks, senior centers, libraries and museums. Keeping crosswalks clear of parked cars improves crosswalk safety and pedestrian visibility.
Since 2024, we have started almost 30 transit and street safety projects.
What comes next
We are working with our partner city agencies on the next phase of safety improvements. We’ve identified a set of priority quick-build projects that are ready to go. They will address safety and connectivity needs identified in the 2024 HIN. Quick-build projects are ones that do not require major construction or capital investment but yield measurable safety results. That’s just the first step.
We’ve also identified 25 additional transit and street-safety improvement projects in our capital budget. We plan to continue painting curbs red to keep crosswalks clear of parked cars. We will also make spot improvements to streets and corridors as needed.
Our partners at the SFPD are prioritizing locations identified in the 2024 HIN in each police district. They are also increasing police presence and supporting high-risk areas throughout the day.
We know we have work to do, and the 2024 HIN helps us focus our efforts and resources. And Mayor Lurie’s Safe Streets Initiative makes this work a citywide priority. We look forward to working with our city partners to continue making San Francisco safer for all residents and visitors.