From the Long Beach (CA) Press-Telegram, here's a description of the city's new bicycle boxes, safe areas for cyclists waiting for a traffic light to change. Forbidden to cars - like pedestrian crosswalks - these havens were patterned after those in Portland and Albuquerque.
I can imagine these as effective in California - where crosswalks are sacred, but in the last couple of places Tamar and I have lived, striped pedestrian paths are nothing like protected. If you feel safe in a crosswalk or you imagine that the driver stopped there, waiting to turn right, sees you as you step off the curb, you have a trusting nature.
Paint stripes here - and perhaps where you are - are ignored by drivers and slippery when wet.