San Francisco launched 33 speed cameras that now issue real tickets for violations. During the trial phase, cameras issued 350,000 warnings and cut speeding by 30%. Citations start at $50 for drivers ...

The speed enforcement cameras are scattered around the city on streets that are the most prone to traffic injuries, have a history of sideshows or are in school zones, according to the San Francisco ...

This San Francisco walkway is almost large enough to park a standard size Muni bus. How did such an extraordinarily wide ...

and moved so quickly in the middle of the night that it caught many off guard in a county that lacked a warning system. But Syracuse University associate professor Sarah Pralle, who has extensively ...