In reply to Ian Bicking.

Yeah, I've come across a number of intersections where the beg buttons only activate walk signals on one side. That gets pretty annoying when you're basically trying to go diagonally -- I've come up to intersections, hit the button for the direction that's currently "Don't Walk", realized that I can cross in the perpendicular direction, and then expect the "Walk" light to come on on the other side when the signal changes. I already hit the button -- why should I have to do it again? It's all pretty silly.