blockbuster
n.— «You can find one of the first new Greenstreets at 110th and Amsterdam in Morningside Heights. It occupies a long, wedge-shaped sidewalk extension along the southwest side of Amsterdam, widening from mid-block to occupy two traffic lanes at the intersection. This feature is called a “blockbuster,” and it prevents southbound traffic from driving the wrong way down Amsterdam, which runs one-way below 110th.» —“http://www.streetsblog.org/2008/02/14/greenstreets-of-new-york-new-and-improved/” by Ben Fried, Daniel Simon Streetsblog (New York City) Feb. 14, 2008. (source: Double-Tongued Dictionary)