Corporation operates the Roosevelt Island Tram and the Red Bus, which connects the tram to island locations. , the bus service is free. Routes Bus roster AVAC RIOC operates the island's high-tech sanitation system, called automated vacuum collection (AVAC). In this system, a computer turns on the trash receptacles in each building every hour, opening a valve that releases garbage into one of two underground pipes. These pipes then suck the garbage into the AVAC complex, where dust and waste are filtered, packaged, and released. When the system was installed, the only other pneumatic garbage system in the US was in Disney World. Public safety RIOC operates the Roosevelt Island Public Safety Department (RIPSD), the law-enforcement agency that patrols the island under the 1968 contract between the city and the state. The department protects the island's property including all public/state facilities, storefronts, and certain contracted residential buildings, and enforces state and city laws on the island. It employs approximately 40 officers. Parks and recreation RIOC maintains and rents out sports fields around the island for public use. The Sportspark exercise facility at the southern end of Roosevelt Island features a pool, basketball court, and ping-pong room. See also Hudson River Park Trust Hugh L. Carey Battery Park City Authority Lower Manhattan Development Corporation Municipal Assistance Corporation for the City of NY New York Convention Center Operating Corporation United Nations Development Corporation References External links Public benefit corporations in New York (state) Roosevelt Island