If you are referring to the http://www.humantransport.org/bicycledriving/index.html website, I don't believe we have a picture of what has been called the "Sharrow," the Shared-Use Arrow. ... Some of us on another list are in discussion about the Sharrow. Our conclusion seems to be that it is preferable to bike lanes, but should be laterally located in the center of the lane so as to NOT mis-communicate to either party expected bicyclist lateral location.