 Independent long-distance carriers include Grand Service Express TC, Tverskoy Express, TransClassService, Sakhalin Passenger Company, Kuzbass Suburb, and Yakutian Railway.Russia is larger than both the United States and China in terms of total land area, therefore its rail density (rail tracking/country area) is lower compared to those two countries.Since Russia's population density is also much lower than that of China and the United States, the Russian railways carry freight and passengers over very long distances, often through vast, nearly empty spaces.