Yesterday, Assemblymembers Laura Friedman (D-Glendale) and Phil Ting (D-San Francisco) made a first stab at codifying some of the recommendations made by a task force studying California’s speed limit law.

Friedman warns that the bill is “a work in progress,” likely to be amended during the legislative process. Certainly the first steps it calls for are small ones: for now, A.B. 2121 would simply extend the period of time between required traffic speed surveys, under certain conditions.

Years of research, the rules of physics and common sense all point to an established fact about street safety: the faster people drive, the more dangerous and deadly our roads become.

Despite that fact, Los Angeles and other cities across California are regularly raising speed limits on their streets. They're doing that in order to enforce speeding laws in accordance with something called the 85th percentile rule, which roughly says if enough people are driving a certain speed, that should be the speed limit.