After 9/11, there were several years of public debate, as New Yorkers worked to figure out how best to rebuild the World Trade Center site. It was necessary to take some time to develop a plan that reconciled the various constituencies` individual goals. In August 2002 The Lower Manhattan Development Corporation (LMDC) announced a competition for a master plan. Studio Daniel Libeskind design was selected in February 2003. The fourteen-acre WTC site will contain, in addition to the Memorial and the Museum, a Visitor Orientation Center, a new PATH train station, a Subway station, an underground retail concourse, an underground road network with security screening areas, five new office towers, and a Performing Arts Center. The WTC Masterplan serves as both the conceptual basis and the technical foundation for the entire complex re-development of ground zero. The Masterplan defines the spirit of the approach to re-building and creates a meaningful conceptual framework for the site. It also defines the spatial organization of all elements of the development within the site with an emphasis on the human experience and the public realm.The Masterplan dictates the location and massing of each program element, building height and relative size, as well as proximity and relationship to one another. The WTC Masterplan also supplies the framework for the site`s infrastructure, transportation, sustainability standards and security strategy and lays out the functional relationship between all the site elements with respect to the surrounding context of the immediate neighbourhoods and the surrounding city.