A discussion about the future of Market Street is taking place in many forums in the City, preparing the way for a new boulevard in 2015. The history of Market Street is peppered with architectural and social solutions that have not worked out as planned. We'll take a look at the long history of Market Street as a public arena in San Francisco, some of the redesigns that have happened over the decades, question the assumptions about urban design that underly the current municipal discussions, and set the stage for a discussion of what's coming. with Shaping San Francisco's Chris Carlsson and BART Director and Livable City executive director Tom Radulovich.