Statistics. 1  Tram and light rail systems operate in 388 cities across the world, 206 of which are in Europe; 2  Since 1985 120 light rail systems have opened; 3  Since 2000 78 systems have opened while 13 have closed. 4  15,618 km of track is in operation, with 850 km in construction and a further 2,350 km planned;
Gulf Stream. The Gulf Stream, together with its northern extension the North Atlantic Drift, is a warm and swift Atlantic ocean current that originates in the Gulf of Mexico and stretches to the tip of Florida, and follows the eastern coastlines of the United States and Newfoundland before crossing the Atlantic Ocean.
Beginning in the Caribbean and ending in the northern North Atlantic, the Gulf Stream System is one of the world's most intensely studied current systems. This extensive western boundary current plays an important role in the poleward transfer of heat and salt and serves to warm the European subcontinent.ddy kinetic energy along both the Gulf Stream and the North Atlantic Current is at peak values here (Richardson 1983). There is also the presence of elongated, high-pressure cells along the offshore side of the North Atlantic Current (Worthington 1976; Clarke et al. 1980; Baranov and Ginkul 1984; Krauss et al. 1987).