Wikipedia: The Staten Island Expressway is a 7.7 mile (12.39 km) long highway running through the borough of Staten Island, New York in the United States. It is part of Interstate 278. Its western terminus is the Goethals Bridge linking the island to New Jersey over the Arthur Kill. The eastern terminus is the Verrazano Narrows Bridge linking to Brooklyn over the Narrows. Named the Clove Lakes Expressway when originally proposed, it opened under its actual name in November 1964, the same month the Verrazano Narrows Bridge was completed.It connects to the West Shore Expressway, as well as to the Dr. Martin Luther King Jr. Expressway (formerly the Willowbrook Expressway), both of which are designated as segments of New York State Route 440. Including these two interchanges, the expressway has a total of 13 exits, six of which are one-directional.In addition to local traffic on Staten Island, the expressway provides the most direct route from Brooklyn and Long Island to central or southern New Jersey. It is widely known throughout the New York area as one of the most congested roads in the city. The Staten Island Expressway is widely regarded as an important demographic boundary since virtually all of the island's African-American population and the vast majority of its Hispanic population resides north of the expressway, which is an area approximately one-fourth of the island's total area. The portion of the island north of the highway is also coterminous with the territory served by the 120th Precinct of the NYPD, one of the three police precincts located on Staten Island, and also one of the island's three Community Board districts. There is currently a Buses Only lane that runs in both directions between the Verrazano Narrows Bridge and the Todt Hill Road Exit. During construction many motorists assumed it would be an High-occupancy vehicle lane.