Without those reports, injury accidents do not get entered in the police database and cannot be investigated by the District Attorney's office. Pedestrian deaths are also fairly stable, hovering around 30 per year. The biggest spike in pedestrian deaths occurred in 1997, when 41 pedestrians were killed in a 12-month period. For bicycles, injuries are on the rise, however. Last year 431 bicyclists were injured in accidents with cars.
Statistics can be misleading, however.
No agency has measured the incidents of road rage on San Francisco streets. The Police Department does not compile data on what percentage of traffic collisions are intentional, or how often those cases are prosecuted and drivers convicted. What is easily measured is the degree of hostility that cyclists experience when they take to the roadways. The reasons for driver hostility are not hard to find. Streets are more congested, and travel times are slower, especially in the South of Market area.