Trans-Siberian Railway Trans-Siberian Railway The Trans-Siberian Railway (TSR, ) is a network of railways connecting Moscow with the Russian Far East. With a length of , it is the longest railway line in the world. There are connecting branch lines into Mongolia, China and North Korea. It has connected Moscow with Vladivostok since 1916, and is still being expanded. It was built between 1891 and 1916 under the supervision of Russian government ministers personally appointed by Tsar Alexander III and his son, the Tsarevich Nicholas (later Tsar Nicholas II). Even before it had been completed, it attracted travellers who wrote of their
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