| Ivolga (EG2Tv) | |
| Factory: | Tver, Russia |
| Manufacturer: | TVZ |
| Yearconstruction: | 2014–present |
| Yearservice: | 2017 |
| Numberbuilt: | 439 cars (41 trainsets) |
| Capacity: |
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| Carbody: | Stainless steel |
| Trainlength: |
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| Carlength: |
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| Width: | 3480mm |
| Floorheight: | 1320mm |
| Doors: | 2 per side; 1400mm width |
| Wheeldiameter: | 957mm |
| Wheelbase: |
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| Maxspeed: | 120km/h160km/h |
| Weight: | Ivolga 0.0:
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| Traction: | ABB IGBT–VVVF |
| Traction Motors: | 4 × 300kW |
| Poweroutput: |
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| Acceleration: | 0.96m/s2 |
| Electricsystem: | 3 kV DC (nominal) from overhead catenary |
| Collectionmethod: | Pantograph |
The Ivolga (named after "Иволга" bird, e.g. Eurasian golden oriole), designation EG2Tv and EGE2Tv, is an electric multiple unit passenger train produced and manufactured by Tver Carriage Works (TVZ) for urban and commuter service.
The exterior and interior styling, however, was outsourced: TVZ ordered the design of the concept train to Integral Design and Development (Arina Design) (Barcelona, Spain). A natural scale mock-up was built by Integral Design and Development and presented in Russia in 2015.
Re-styling of Ivolga was also outsourced to Integral Design and Development (Arina Design) in 2017. First Ivolga 2.0 trainset was built in 2019.
Since November 2019, an upgraded Ivolga 1.0 trains have been serving Line D1 of Moscow Central Diameters.[1]
In 2021, yet another iteration of the design was presented, EGE2Tv, named Ivolga 3.0, with increased to 160 km/h max speed and meant for traveling longer distances. Whilst still utilizing the 2.0 exterior, the interior was updated by the Russian 2050.lab studio. They were meant for the D3 line of Moscow's MCD system planned opened in August 2023. The first trainset was completed in 2022.
The next modification, Ivolga 4.0, is an urban variant with 3 doors per middle car. A trainset with eleven cars has 646 seats. The first trainset was built in 2023.
Overall 41 EG2Tv and 34 EGE2Tv trains have been produced by June 2024, working on lines D1, D2 and D4 of MCD Moscow's metro-rail (high-capacity urban-rail) system as well as on express route Moscow - Usovo.