Trans-Siberian Railway e.g. used by train No.020, Moscow–Beijing follows the same route as the Trans-Siberian between Moscow and Chita and then follows this route to China: The express train (No. 020) travel time from Moscow to Beijing is just over six days. There is no direct passenger service along the entire original Trans-Manchurian route (i.e., from Moscow or anywhere in Russia, west of Manchuria, to Vladivostok via Harbin), due to the obvious administrative and technical (gauge break) inconveniences of crossing the border twice. However, assuming sufficient patience and possession of appropriate visas, it is still possible to travel all the way along
Ulan-Ude Okrug. According to the 2010 Census, 404,426 people lived in Ulan-Ude; up from 359,391 recorded in the 2002 Census. In terms of population, it is the third largest city in eastern Siberia. The ethnic makeup of the city's population in 2010: The city is the center of Tibetan Buddhism in Russia and the important Ivolginsky datsan is located from the city. Ulan-Ude is located on the main line (Trans-Siberian line) of the Trans-Siberian Railway between Irkutsk and Chita at the junction of the Trans-Mongolian line (the Trans-Mongolian Railway) which begins at Ulan Ude and continues south through Mongolia to Beijing