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
East Siberian Railway perfected the design of alternating current locomotives, overhead catenary system, means of communication, signaling, centralised traffic control and the automatic block system, all of which would later be introduced on other railways in one way or another. 97% of the traffic along the East Siberian Railway is done by means of electric traction. The East Siberian Railway consists of several sections, one of which is the Circum-Baikal Railway – a monument to industrial architecture of federal importance. It stretches for over from the Baikal railway station to the Kultuka railway station. The uniqueness of this wonder of engineering is that