The Metropolitan Transportation Authority has operated the LIRR as one of its two commuter railroads since 1966, and the LIRR is one of the few railroads worldwide that provides service all the time, year round. In July 2017, a $2 billion plan to add a third railroad track to the LIRR Main Line between the Floral Park and Hicksville stations in Nassau County was approved. Other LIRR projects, such as the Ronkonkoma Branch Double Track Project, are also underway. Five "readiness projects" across the LIRR system, which will cost a combined $495 million, are also under construction in preparation for expanded peak-hour LIRR service after the completion of East Side Access, which will bring LIRR trains to Grand Central Terminal. Nassau Inter-County Express (NICE) provides bus service in Nassau County, while Suffolk County Transit, an agency of the Suffolk County government, provides bus service in Suffolk County. In 2012, NICE replaced the former MTA Long Island Bus in transporting Long Islanders across Nassau County while allowing them to use MTA MetroCards as payment. The Long Island Expressway, Northern State Parkway, and Southern State Parkway, all products of the automobile-centered planning of Robert Moses, are the island's primary east-west high-speed controlled-access highways. Several hundred transportation companies service the Long Island/New York City area. Winston Airport Shuttle, the oldest of these companies in business since 1973, was the first to introduce door-to-door shared-ride service to and from the major airports, which almost all transportation companies now use. Many public and private high schools on Long Island are ranked among the best in the United States. Nassau and Suffolk Counties are the home of 125 public school districts containing 656 public schools. It also hosts private schools such as Friends Academy, Chaminade High School, Kellenberg Memorial High School, St. Anthony's High School, and North Shore Hebrew Academy, as well as parochial schools, many of which are operated by the Catholic Diocese of Rockville Centre. In contrast, all of Brooklyn and Queens are served by the New York City Department of Education, the largest school district in the United States. Three of the nine specialized high schools in New York City are in the two Long Island boroughs, those being Brooklyn Latin School, Brooklyn Technical High School (one of the original three specialized schools), and Queens High School for the Sciences. Like Nassau and Suffolk Counties, they are home to private schools such as Poly Prep Country Day School, Packer Collegiate Institute, and Saint Ann's School, and Berkeley Carroll School, and parochial schools operated by the Catholic Diocese of Brooklyn.