San Francisco-resident Paul Sungo said he watched in horror as emergency crews responded to the latest incident in the city involving a vehicle and person.
This time it was a woman on a bike and tow truck involved in an accident Wednesday on Folsom and 7th streets. Police said it appears the bicyclist hit the truck when the driver was traveling through a green light. The woman was taken to a hospital.
San Francisco has seen three people killed by drivers since New Year's Eve.
A memorial for 6-year-old Sophia Lui at Polk and Ellis streets is a somber reminder of the string of pedestrians killed. A driver for Uber -- who was not working at the time -- hit and killed the girl in the crosswalk on New Year's Eve.
The girl's mother and brother, who also were hit in the incident, are still recovering from injuries.
Frustrated residents are looking to San Francisco City Hall for action.
The San Francisco Municipal Transportation Agency has received a $3 million grant for signal improvements on city streets and will spend $17 million over the next five years on pedestrian safety.
Meanwhile, San Francisco Mayor Ed Lee met with the police department to discuss pedestrian safety.
"Enforcement is going to be up significantly on pedestrians, bicycles and drivers," said Greg Suhr, San Francisco Police Department's chief. "It's never a popular thing to give a ticket, but I'm telling you a lot more tickets are going to be given out and they are expensive."