High Quality Content by WIKIPEDIA articles! The Moscow to Saint Petersburg Railway is a 649.7 km (403.7 mi) railway running between the two largest Russian cities of Moscow and Saint Petersburg, and through four oblasts: Moscow, Tver, Novgorod and Leningrad. It is the leading traffic artery for the whole of the north-west region of Russia, operated by Oktyabrskaya Railway subdivision of Russian Railways. The current maximum speed on the Moscow-St. Petersburg line is 200 km/h (124 mph); the fastest train takes 4 hours and 30 minutes. However, construction works have been under way since 2004, which will take it to 250 km/h (155 mph). The Siemens-built Velaro RUS train, aka Sapsan, will debut operationally on this line in December 2009 with a maximum speed of 250 km/h (155 mph), but running below their capacity because of difficulties upgrading all the tracks. Nevertheless, it is expected that the Sapsans will trim the Moscow-to-St. Petersburg time to 3 hours and 45 minutes. For this Sapsan project, Russian Railways spent nearly $1 billion for its eight Siemens Velaro trains.