This morning we ran north on Arguello to the Presidio. When we reached California Street, it struck us that there were no pedestrian signals at that intersection, which is rife with pedestrians, on a crowded bus line, and right near a couple of schools and a huge synagogue. Thinking back, most of the intersections to Arguello don't have pedestrian flashers, with the exceptions of Fulton, Geary, and Clement. Every other intersection - including some......