The San Francisco Municipal Transportation Agency (SFMTA) is responsible for designing, directing and managing all traffic engineering functions within San Francisco, including placement of signs, signals, traffic striping, crosswalks, and curb markings to promote the safe and efficient movement of people and goods throughout the City. If you have any suggestions, concerns or requests about roadway safety or traffic circulation in San Francisco, please use the request form on the 311 Self Service portal or call 311 (for calls outside of San Francisco, dial 415.701.2311).