@ucbalumnus : That has always been one of my favorite signs. For those of you not familiar with the Bay Area, it’s actually not as wacko as it seems. The signs are found on a short stretch of freeway in Alameda County where the two routes are the same road and both essentially head north before 80 (which came from San Francisco across the Bay Bridge) continues its way east across the country and 580 (which came from the south and east of the greater Bay Area) goes off the left to head west to Marin County across the Richmond-San Rafael Bridge. Both are completely correct, but the juxtaposition is a bit mind-boggling. Hey; we’re California. We do that stuff.