Legislation that would give counties and cities the authority to lower speed limits on non-arterial streets to 20 mph without going through an expensive speed and traffic-engineering study passed the state house unanimously today, sending it to the state senate (where, last year, it bogged down in the rules committee).

Bike and pedestrian advocates support the 20-mph proposal, because of evidence showing that a car is only 5 percent likely to kill a pedestrian or cyclist at 20 mph, compared to an 80 percent likelihood of death at 40 mph.

In a statement, House sponsor Cindy Ryu (D-32) said, the bill "removes an expensive state mandate that deters communities from lowering speed limits on non-arterial roads even when they recognize that lower speeds would make people safer or promote local businesses and jobs."