chairman tom nolan's background in policy making and leadership in the transportation arena, to put it mildly, is extensive and well known. chairman nolan, can you please come on up. [applause] >> perhaps you would like to take a few minutes first to remind people who don't know my history to talk about me, nat. thank you, good morning, everybody. pleasure to be here. they've asked me to talk a little bit about the history of the -- of parking in san francisco and i suspect it's because they think i was actually there during the years when the street grids were narrow and people parked their horses and stables and hitching posts. i remember that so well. those street grids never obviously anticipated the 20th century and our car experience with the growth in population, number of years the automobile bake the major factor and equation it has and continues to generate and proliferate congestion and greenhouse gas emission. anyone, casual observer can notice any day the difficulty caused in the city by people circling, trying to find a place to park. the results four fold -- endless hunt