Downtown San Francisco is the most sustainable job center in the region due to its walkable compact nature and its position as the hub of the region's transit infrastructure. The Central Corridor is one of the very few areas in the entire city that has the existing and planned transit infrastructure to build on these successes. It is critical that we consider the rezoning of the Central Corridor in the context of our long-term need for employment and housing space. It is with these priorities in mind that we provide specific comments on the proposed height alternatives for the Central Corridor.