• • Exclusive high speed networks. In contrast, the second category of high speed trains runs on its own exclusive and independent tracks. In Japan, trains can attain speeds of 240 km/h, but ongoing projects to raise peak speeds at 300 km/h aim at maintaining competitiveness of rail passenger transport versus air. In France, the TGV Sud-Est (Trains a Grande Vitesse) reaches speeds of 270 km/h while the TGV Atlantique can cruise at speeds of 300 km/h. One of the key advantages of such a system is since passenger trains have their exclusive tracks, theefficiency of rail freight transport increases as it inherits the almost exclusive use of the conventional rail system.