Hawaii has only two railroads: the nonprofit Hawaiian Railway Society, with 6.5 mi (10.5 km) of track on Oahu, and the commercial-recreational Lahaina, Kaanapali & Pacific on Maui, with 6 mi (10 km) of track. The islands of Oahu, Hawaii, Maui, and Kauai have public bus systems. In 2000, Hawaii's 769,383 licensed drivers traversed 4,281 mi (6,889 km) of roads and streets, of which 2,177 mi (3,503 km) were considered rural, and 2,104 mi (3,386 km) urban. There were 459,515 passenger cars registered in 2000, along with 273,735 trucks and 4,301 buses.
Hawaii's busiest port is Honolulu, with 15.8 million tons of cargo handled in 2000. Other major Hawaiian ports and their 2000 tonnage handled include Barbers Point, Oahu, 7.1 million; Hilo, 1.7 million; and Kahului, Maui, 3.5 million.
Most scheduled interisland passenger traffic and most transpacific travel is by air. The state has 31 airports and 16 heliports. The busiest air terminal, Honolulu International Airport, had a total of 11,174,701 enplanements in 2000.