Ben Gurion Airport 2000 contained a complex transportation system which included roads, bridges, underground passageways, and parking lots. The infrastructure systems, drainage systems typical of airports which begin with a narrow furrow and end in a duct large enough for a car to drive through, sewage lines with pumping stations, water systems, both for putting out fires and for constant consumption, electricity supply systems which get electricity from the Electric Company via Korean backup generators which include distribution lines, transformer stations in the buildings, and ending in a low-tension network.