To construct the World Trade Center, Greenwich Street was disconnected from the Battery to the south and what came to be known as Tribeca to the north. Now, the city is attempting to reintegrate the street into a new neighborhood by extending it through the redeveloped WTC site. So the 41 acres south of the World Trade Center site, between Broadway and West Street, is being rebranded "Greenwich South." (Take that, Tribeca North!) The Downtown Alliance has just released a design study full of big ideas for the neighborhood; their ambitious plans foresee "a model for the 21st century business district."

Radiating optimism with pretty renderings, the main thrust of their concept is to create a neighborhood with mixed-use buildings and lots of activity so the area becomes less of a ghost town at night, and more of a vibrant, 24/7 community. (Some people would just be happy with a decent grocery store.) But come on, this "could be the linchpin of Lower Manhattan," people! Let's get excited: The whole vision is on the Downtown Alliance website for your perusal. [Via Curbed]