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A train arriving at the Koyambedu metro station.
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| Overview | |||
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| Owner | Chennai Metro Rail Limited (CMRL) | ||
| Locale | Chennai, Tamil Nadu, India | ||
| Transit type | Rapid Transit | ||
| Number of lines | 2 | ||
| Number of stations | 20 operational (13 elevated, 7 underground) 42 Phase I |
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| Headquarters | Poonamallee High Road, Koyambedu, Chennai 600107 | ||
| Website | chennaimetrorail |
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| Operation | |||
| Began operation | 29 June 2015 | ||
| Operator(s) | Chennai Metro Rail Limited (CMRL) | ||
| Number of vehicles | 42 (Phase I) | ||
| Train length | 86.5 m (284 ft) | ||
| Technical | |||
| System length | 27.88 km (17.32 mi) (operational) 54.1 km (33.6 mi) (Phase I and Extension) |
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| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge | ||
| Electrification | 25 kV, 50 Hz AC through overhead catenary | ||
| Top speed | 80 km/h (50 mph) | ||
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The Chennai Metro, officially Chennai Metro Rail Limited (CMRL), is a rapid transit system serving the city of Chennai, Tamil Nadu, India. The system commenced revenue service in 2015 after partially opening the first phase of the project. The network consists of two colour-coded lines covering a length of 54.1 kilometres (33.6 mi).
The Chennai Metro Rail Limited (CMRL), a joint venture between Government of India and the Government of Tamil Nadu builds and operates Chennai Metro. The system has a mix of underground and elevated stations and uses standard gauge. The services operate daily between 06:00 and 22:00 with a varying-frequency of 10-20 minutes.
The system has also planned to complete the takeover of the existing Chennai Mass Rapid Transit System by 2021, which would be upgraded to operate using the rolling stock of the Chennai Metro. CMRL was recognised by the International Association of Public Transport in 2011.
The construction began in June 2009 and the first stretch covering seven stations from Koyambedu to Alandur over a distance of 10 kilometres (6.2 mi), began operation on 29 June 2015. And as of May 2017, Nehru Park to St. Thomas Mount on Green line and Little Mount to Chennai International Airport on Blue line are commercially operational which brings the total operational network to 28 km.