Moscow extends tram reach across the capital

Moscow has opened a 33-kilometre tram corridor branded T2, a cross-city route that Mayor Sergei Sobyanin says is now the world’s longest urban tram diameter, linking Chertanovskaya metro station in the south with Novogireevo on Moscow Central Diameter line D4 in the east. The launch marks the second stage of the capital’s tram-diameter programme and extends a surface-rail strategy designed to ease pressure on the underground network while improving orbital travel across densely populated districts.

Sobyanin had flagged the T2 scheme in January as part of a broader remodelling of Moscow’s transport grid, and city transport plans published in March set out the route as one of the centrepieces of the 2026 mobility agenda. Moscow officials have said the line is intended to serve more than one million residents by giving passengers a direct surface link between southern and eastern neighbourhoods that otherwise often require longer journeys through the metro core. That framing places T2 not simply as a tram extension but as part of a wider effort to build metro-like surface corridors across the city.

The opening follows the debut of T1 in November 2025, the first Moscow Tram Diameter, which created a 27-kilometre cross-city route from Universitet to Metrogorodok. Independent transport coverage described that launch as a milestone in Moscow’s attempt to reposition trams from a legacy mode into a higher-capacity, high-frequency element of mainstream urban mobility. In that model, the tram diameters are meant to function as surface metro lines, with through-routes spanning multiple districts rather than shorter radial services feeding local streets.

That context matters because Moscow is not starting from a small base. The capital already runs one of the world’s largest tram networks, with a system length of about 418 kilometres, and officials have used the diameter concept to connect established sections into longer, more coherent corridors. T1 was built around new infrastructure on Akademika Sakharova Avenue and Masha Poryvaeva Street, allowing a network once known for fragmentation to begin operating on a city-spanning logic. T2 now pushes that model further by stretching across a longer axis and reinforcing the idea that trams can handle strategic urban trips as well as neighbourhood circulation.

Moscow’s claim that T2 is the world’s longest urban tram diameter should be read carefully. City statements and associated coverage consistently describe it as the longest urban tram diameter or longest urban tram route of its kind, rather than the longest tramway line in every operational category worldwide. Even so, the language reflects a clear political and planning message: the capital wants to portray surface rail as a flagship part of its modernisation drive, not an afterthought behind metro expansion. That ambition fits a broader narrative in which Moscow has been combining heavy investment in metro extensions with renewed spending on tram corridors, rolling stock and digital control systems.

Technology and fleet renewal are central to that message. Moscow has been procuring new low-floor trams with off-wire capability, and transport industry reporting has shown the city moving towards broader deployment of highly automated vehicles. Officials said in March that 50 self-driving trams were being delivered, while separate reporting this month said Moscow aimed to have 15 highly automated trams in operation by the end of 2026. Those investments suggest the city sees tram expansion not only as a capacity story but also as a test bed for automation, battery operation and lower-emission street-level transport.