"Every single street in the Tenderloin is on our city's high-injury network," said Jodie Medeiros of Walk San Francisco.
RELATED: San Francisco finalizes plans to close Market Street to cars
There are more one-way streets there, creating a sense that people can drive faster.
Most of the people who drive through the Tenderloin are not residents.
MAP: Here are the highest-injury intersections in San Francisco
Last July 18, a man was struck at the intersection of Eddy and Mason. While we were shooting video, a young woman was nearly hit by a car.
"Yeah, I was crossing the street and I still had the light, just yeah," she said.
RELATED: Tesla driver in San Francisco crash that killed man from Central Valley used Getaround app
According to the San Francisco Municipal Transportation Agency, speeding is the cause of 25 percent of fatal accidents in the city.
The collision that killed one man and injured his wife happened at Taylor and O'Farrell, an intersection that is always of concern because people do speed through here. I downloaded an app, which shows how fast a car is going. Honestly, I didn't know if it would work, but I gave it a try.
Remember here the speed limit is 25 miles per hour. We found many people driving above the limit.
EXCLUSIVE: Video shows wife shielding husband before deadly SF crash
Vision Zero SF is helping to create more traffic safety in the city which would include installing more red light cameras. Even the police union, which was opposed to them, is now in favor of including them.
"We are asking for our city to install more red light cameras where they know are dangerous intersections," added Medeiros
See more stories on Building a Better Bay Area.