San Francisco’s first green bike box can no longer be mistaken for just a car-sized strip of green paint: DPT crews stencilled in a bicycle symbol to indicate to cars that the green box on Scott Street at Oak is for bikes only. In marked contrast to the pre-stencil bike box, the new stencil seemed to help most drivers understand that they’re required to wait behind the box during red lights. Only a few scofflaws ignored the bike box, often stopping behind it initially and then rolling into it – often with cell phones pressed against their ears.
The Scott Street green bike box, painted on December 3rd, was the first in California. Long Beach installed a green bike box December 20th that more closely resembles the Portland bike boxes.
– from sf.streetsblog.org