Trans-Siberian Railway one side of the lake to the other until the completion of the Lake Baikal spur along the southern edge of the lake. With the Amur River Line north of the Chinese border being completed in 1916, there was a continuous railway from Petrograd to Vladivostok that remains to this day the world's longest railway line. Electrification of the line, begun in 1929 and completed in 2002, allowed a doubling of train weights to 6,000 tonnes. There were expectations upon electrification that it would increase rail traffic on the line by 40 percent. The additional Chinese Eastern Railway was constructed
Chinese Eastern Railway the west as Port Arthur, and the Russo-Japanese War (1904–1905) was fought largely over who would possess this region and its excellent harbor, as well as whether it would remain open to traders of all nations (Open Door Policy). The Chinese Eastern Railway was essentially completed in 1902, a few years earlier than the stretch around Lake Baikal. Until the Circumbaikal portion was completed (1904–1905; double-tracked, 1914), goods carried on the Trans-Siberian Railway had to be trans-shipped by ferry almost a hundred kilometers across the lake (from Port Baikal to Mysovaya). The Chinese Eastern Railway became important in international relations.