Confused Tram thinks its a Metro in Volgograd, Russia: Трамвай или Метро в Волгограде?

Volgograd built metro stations in the Soviet style; however, later decided to run trams through its system! :O (The city of Volgograd has a population of one million). The city was formerly known as Stalingrad, the site of one of the bloodiest battles and turning point of World War II - Это трамвай или метро система в Волгограде? - The Volgograd Metrotram (Skorostnoy Tramvay, ST) is a light rail system operating in Volgograd, Russia. It consists of 22 stations on one line, paralleling the Volga River from the northern suburbs of Volgograd to its city core for a total length of 17.3 kilometres (10.7 mi). The Volgograd Metrotram was inaugurated on 5 November 1984, and had served 50 million passengers per year at the time the 2011 extension was opened. Most of the Metrotram line shares a surface-level right of way with a previously constructed railway line for 10.2 kilometres (6.3 mi), in a manner similar to that of the south leg of the C-Train system in Calgary, for example. Five city center stations, on the other hand, were built underground in two sections (opened in 1984 and 2011), over a total length of 6.8 kilometres (4.2 mi), meeting design standards consistent with existing Russian metro systems. ~Wikipedia - Please comment if you have opinions or facts to share about the video or transit in general! Its a learning process for all of us and I enjoy being educated on what in the end we all love: transportation