The underground Automated Vacuum Collection system (AVAC) installed at Walt Disney World in Buena Vista, Florida, consists of 6,000 feet of 20-inch transport pipe, most of which is wrapped in two- inch-thick acoustical insulation, originating from various refuse deposit points in the park and leading to a central collection building, where bulk trash is compacted and then trucked to an incinerator. Located in the central building are three 200-horsepower exhausters which create a 60-miles-an-hour vacuum that conveys the refuse through the pipes. Only two of these apparatus operate at any given time, leaving one in reserve. Each unit is permitted to run for a certain period of time before it automatically cuts off and is replaced by an idle exhauster, which enables each unit to operate for an equal and intermittent period of time. The transport pipe branches off into 16 different depositories, or charging stations, strategically located throughout the park and the Contemporary Resort Hotel. Refuse containers located on the park grounds are equipped with plastic inserts which are removed by attendants and carried by hand to the nearest depository, which is never more than a few feet away.
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