services, the station quickly reclaimed its status as the busiest station in the PATH system. However, it had several limitations. The temporary station had 8-car-long platforms, whereas the original station had 10-car-long platforms. The station frame was also not strong enough to support development above it, and parts of the station were located outdoors in the "bathtub". The temporary station had only one entrance, at Church Street, and disabled patrons needed to take four elevators to go from street level to platform level. The station was also home to a StoryCorps booth, which opened in 2005. Through this program, visitors could arrange to give oral recorded histories of the disaster. The booth closed in the spring of 2007 to make way for construction at the World Trade Center site. In June 2007, the street entrance to the temporary station was closed and demolished as part of the site construction. A set of new staircases was constructed several feet to the south, and a "tent" structure was added to provide cover from the elements. The tent structure, by Voorsanger Architects and installed at a cost of $275,000, was designed to have an "aspiring quality," according to architect Bartholomew Voorsanger. That entrance on Church Street was closed in April 2008 when the entrance was relocated once again. On April 1, 2008, the third temporary entrance to the PATH station opened for commuters. The entrance was located on Vesey Street, adjacent to 7 World Trade Center. It was demolished with the opening of the permanent Calatrava-designed station, since it was on the site of the future Performing Arts Center. World Trade Center Transportation Hub The World Trade Center Transportation Hub is the Port Authority of New York and New Jersey's formal name for the new PATH station and the associated transit and retail complex that opened on March 3, 2016. The station's renaming took place when the station reopened. It was designed by Spanish architect Santiago Calatrava and composed of a train station with a large and open mezzanine under the National September 11 Memorial plaza. This mezzanine is connected to an aboveground head house structure called the Oculus—located between 2 World Trade Center and 3 World Trade Center—as well as to public concourses under the various towers in the World Trade Center complex. In addition, the station was designed to connect the PATH to the New York City Subway system, and to