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<br><br>
=== MRTS Takeover ===
=== MRTS Takeover ===
The [[Chennai Mass Rapid Transit System]] is anticipated to be handed over to CMRL by the Southern Railway. All the stations from Velachery to Beach will be upgraded with the facilities of the metro stations which includes tracks, security, ticketing system and the rolling stock.<ref>{{Cite news|url=http://www.newindianexpress.com/cities/chennai/2018/jan/03/chennai-with-metro-coaches-and-modern-stations-mrts-set-for-big-upgrade-1743035.html|title=With Metro coaches and modern stations, MRTS set for big upgrade|last=|first=|date=|work=|access-date=}}</ref>
The [[Chennai Mass Rapid Transit System]] is anticipated to be handed over to CMRL by the Southern Railway. All the stations from Velachery to Beach will be upgraded with the facilities of the metro stations which includes tracks, security, ticketing system and the rolling stock.<ref>{{Cite news|url=http://www.newindianexpress.com/cities/chennai/2018/jan/03/chennai-with-metro-coaches-and-modern-stations-mrts-set-for-big-upgrade-1743035.html|title=With Metro coaches and modern stations, MRTS set for big upgrade|last=|first=|date=|work=|access-date=}}</ref>

Revision as of 11:19, 1 September 2019

Not to be confused with Chennai Mass Rapid Transit System
Chennai Metro Rail service
Train arriving at the Koyambedu Metro Station
Train arriving at the Koyambedu Metro Station
Overview
OwnerChennai Metro Rail Limited (CMRL)[1][2]
LocaleChennai, Tamil Nadu, India
Transit typeRapid Transit
Number of lines2
Number of stations32
Daily ridership1,11,000[3]
HeadquartersPoonamallee High Road, Koyambedu, Chennai 600107
Websitechennaimetrorail.org
Operation
Began operation29 June 2015; 9 years ago (2015-06-29)
Operator(s)Chennai Metro Rail Limited (CMRL)
Number of vehicles42
Train length86.5 m (284 ft)
Headway5-14 Minutes[3]
Technical
System length45.1 km (28.0 mi) (operational)

9.1 km (5.7 mi) (Under construction)

118.9 km (Phase ll - Tendering)[4]

25 km(MRTS in conversion)
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification25 kV, 50 Hz AC through overhead catenary
Top speed80 km/h (50 mph)
System map

Schematic diagram of Chennai Metro

The Chennai Metro is a rapid transit system serving the city of Chennai, Tamil Nadu, India. The system commenced service in 2015 after partially opening the first phase of the project. The network consists of two colour-coded lines covering a length of 45 kilometres (28 mi).[5] It is the third largest metro system in India after Delhi Metro and Hyderabad Metro. The Chennai Metro Rail Limited (CMRL), a joint venture between Government of India and the Government of Tamil Nadu built and operates the Chennai Metro. The system has a mix of underground and elevated stations and uses standard gauge. The services operate daily between 4:30 and 23:00 with a varying frequency of 10 to 20 minutes.[6] As of March 2019, about 90,000 people use the service on a daily basis.[7] There are 42 trains with four coaches each, making a total of 168 coaches, operating in the first phase.

The system has also planned to takeover the existing Chennai Mass Rapid Transit System by 2021,[8] which would be upgraded to operate using the rolling stock of the Chennai Metro.[9] CMRL was recognised by the International Association of Public Transport in 2011.[10]

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. As of February 2019, Chennai Central to St. Thomas Mount on the Green line and Washermanpet to Chennai International Airport on Blue line are commercially operational which brings the total operational network over 45 km (28 mi) making it the third largest metro system in India, after the Delhi metro and Hyderabad metro (56.5 km (35.1 mi))

History

Background

Chennai had an established Chennai Suburban Railway network dating back to 1931 operating on a metre-gauge line from Beach to Tambaram. Two more suburban lines, Chennai Central–Arakkonam suburban services to and Chennai Central–Gummidipoondi began operations in 1985 from the Moore Market Complex, but earlier until 1985 suburban services were being operated from the Chennai Central station to the two above-mentioned lines. The first phase of Chennai Mass Rapid Transit System between Chennai Beach and Thirumayilai opened in 1997 with extension to Velachery in 2007.[11] Modelled after the Delhi Metro, a similar modern metro rail system was planned for Chennai by Delhi Metro chief E Sreedharan, at the request of Government of Tamil Nadu.

Planning

In 2007-08, ₹50 crore (US$6.0 million) was sanctioned for preliminary works which included a Detailed Project Report to be prepared by the Delhi Metro Rail Corporation.[12] The project was approved by the state cabinet on 7 November 2007 and was to be executed by a Special Purpose Vehicle, the Chennai Metro Rail Limited (CMRL). Seven lines were planned by the DMRC for the Chennai Metro network.[13] Planning commission gave in-principle approval for the project on 16 April 2008.[14] On 21 November 2009, a deal was signed with Japan Banking Corporation for loan.[15]

Construction

Fully enclosed platform screen doors installed in Chennai Metro's underground stations

In February 2009, Hyderabad-based Soma Enterprise was awarded a ₹199.2 crore (US$24 million) contract for the construction of a 4.5 kilometres (2.8 mi) long viaduct along the Inner Ring Road.[16] In March 2009, a five-member consortium led by Egis Rail SA, France was awarded US$ 30 million contract for general consultancy contract.[17] On May 20, CMRL started to evaluate the integration of Metro corridor with the planned grade separator at the junction of Arcot Road and Jawaharlal Nehru Road.[18] The construction started on 10 June 2009 with the piling work for the elevated viaduct between Koyambedu and Ashok Nagar stretch. In July 2009, tenders were invited for supplying rolling stock and construction of elevated viaducts for Phase I of the metro.[19][20]

In January 2011, Larsen and Toubro was awarded the contract for elevated viaducts for ₹314.43 crore (US$38 million).[21] In March 2011, Chennai Metro reached an agreement with Government of Japan for a loan of ₹2,932.6 crore (US$350 million) for the second phase.[22][23] In June, tenders for the elevated stations of the first phase was awarded to Consolidated Construction Consortium Limited.[24][25] In August 2010, the contract for supplying rolling stock was awarded to Alstom at a cost of ₹1,471.3 crore (US$180 million).[26][27] It was announced that the first phase will be extended by 8.9 kilometres (5.5 mi) and Larsen and Toubro was awarded a contract to construct a depot at Koyambedu.[28][29] In December 2010, DMRC submitted a report for extending Corridor-I from Washemenpet to Wimco Nagar, a distance of 9 kilometres (5.6 mi) at an estimated cost of ₹2,240 crore (US$270 million).[30]

In January 2011, a ₹449.22 crore (US$54 million) contract for design and construction of track works was awarded to a joint venture of L&T and Alstom and a ₹198 crore (US$24 million) contract for supply of lifts and escalators was awarded to a joint venture of Johnson Lifts and SJEC Corporation.[31][32] In February 2011, contracts were awarded for the construction of underground sections of the first phase.[33][34] The contract for power supply and overhead electrification was awarded to Siemens for ₹305 crore (US$37 million).[35] Contracts for Automatic Fare Collection (AFC), tunnel ventilation and air conditioning were awarded to Nippon Signal, Emirates Trading Agency and Voltas for ₹109.88 crore (US$13 million), ₹241.83 crore (US$29 million) and ₹196.2 crore (US$24 million).[36]

On 7 April 2012, the Madras High Court dismissed a petition filed by the Indian National Trust for Art and Cultural Heritage challenging the demolition of a building on Anna Salai.[37] In July 2012, the first tunnel boring machine was launched and by October 2012, eleven machines were commissioned to bore tunnels along the underground stretch by three consortiums, namely Afcons-Transtonnelstroy, L&T and SUCG, Gammon India and Mosmetrostroy involved in the construction.[38] On 6 November 2013, the test run along a stretch of 1 kilometre (0.62 mi) track was conducted.[39] On 14 February 2014, the maiden trial run for the metro was conducted between the Koyambedu and Ashok Nagar stations.[40][41][42] In August 2014, the metro received the statutory speed certification clearance from the Research Design and Standards Organisation.[43][44] In January 2015, a report was submitted to the Commissioner of Metro Rail Safety for approval.[45] In April 2015, the Commissioner of Metro Rail Safety inspected the rolling stock and submitted a report to the Railway Board.[46][47][48][49] On 29 June 2015, commercial operations started between Alandur and Koyambedu stations.[50] Almost a year later, on 21 September 2016, commercial operations commenced between Chennai International Airport metro station and Little Mount. Commercial operations commenced in the first underground line between Thirumangalam metro station to Nehru Park metro station on 14 May 2017.[51] The underground stretches - Nehru Park metro station to Chennai Central metro station and Saidapet metro station to AG-DMS metro station were opened a year later on 25 May 2018.[52] On 10 February 2019, the underground stretch from AG-DMS to Washermanpet of blue line was opened, completing 45 km phase 1 of the metro.[53]

Tunneling

Tunnels for the Chennai Metro were drilled using Tunnel boring machines (TBMs) brought from Russia and China. In December 2011, two TBMs were shipped to Chennai from China. A total of 12 TBMs were deployed from July 2012, 8 from Germany, 2 from China, and 1 each from the United States and Japan.[54] The first tunnel work commenced in July 2012 from Nehru Park to Egmore for a distance of 948 meters. By December 2017, upon completion of the tunneling work of the Chennai Metro, all the machines were shipped backed to their origin countries. Each TBM weighed 850 tonnes and was able to drill hard surfaces, creating tunnel passages to connect underground stations. The length of the TBMs was about 85 to 90 meters. Tunnels were bored 50 feet below the surface, and each kilometer of tunneling cost ₹3,000 million.[55] The average length of tunneling was 6 to 8 meters a day.[56]

Network

Phase I

See also: List of Chennai metro stations
Current Length
Line Terminal First operational Last extension Length
(km) 		Stations Rolling Stock Track Gauge (mm) Power Average Frequency (Minutes)
Blue Line Washermanpet Chennai International Airport 21 September 2016 10 February 2019 23.1 17 42 trains 1,435 25 kV OHE 10
Green Line Central St Thomas Mount 29 June 2015 25 May 2018 22 17 1,435 25 kV OHE 15
Total 45.1 32

The Blue Line intends to cover the Anna Salai stretch and Green Line covers the Poonamallee High Road and Inner Ring Road with the Blue Line being extended from Washermanpet to Tiruvottiyur.[57][58] Phase I has a total of 168 coaches (42 trains with 4 coaches each).

Phase II

File:Chennai-Metro-Phase-2map.jpg
Phase 2 Line Map

In December 2016, it was announced that Chennai Metro Phase 2 would be for 104 km (65 mi) spreading across 104 stations.[59] In July 2017, in a suo motu statement in the State Legislative Assembly, an extension in Phase II, involving an additional cost of ₹38,500 million to the original phase II cost of ₹850,470 million, was announced. This will involve extension of Line 4 from Lighthouse up to Poonamallee, with the Madhavaram–Sholinganallur and Lighthouse–Poonamallee lines intersecting at Alwarthirunagar.[60] The key focus for Phase 2 is to provide a stable connectivity between the northern (Madhavaram, Thiruvottiyur, Redhills) and southern suburbs (Siruseri, Sholinganallur) and the east parts of Chennai (Light house, Mylapore) to the western part of Chennai city (Porur) and also to western suburb (Poonamallee). Tamil Nadu Road Development Corporation (TNRDC) has also proposed an elevated 17.2 km (10.7 mi) four-lane corridor for the IT corridor from Taramani to Siruseri. CMRL will construct its piers on top of the flyover built by TNRDC.

Line Terminal Length
(km) 		Number of stations
Line 3 Madhavaram Siruseri 45.81 kilometres (28.47 mi) 50
Line 4 Poonamallee Lighthouse 26.1 kilometres (16.2 mi) 30[61]
Line 5 Madhavaram Sholinganallur 47 kilometres (29 mi) 46
Total 118.9 km (73.9 mi)

The lines 3, 4 and 5 are proposed to have 50, 20 and 46 stations, respectively. More than 80% of the phase 2 is expected to be underground. A depot is also proposed at Madhavaram, similar to the existing depot at Koyambedu. And the present estimate for the phase 2 is at Rs.85,000 crore and approval has been received from the state government. Construction for the phase is expected to begin in 2019 after approval from the central government.[62][63] The map and list of stations for all 3 proposed lines to be part of Phase 2 has also been published by CMRL.

There are also plans to extend the Poonamallee line up to proposed township of Tirumazhisai in the western part of the city.[64] Phase 2 is expected to be completed by 2026.[65] Phase 2 will have trains with three and six coaches, making a total of 210 coaches.[66]

The stations in phase II will be smaller at 150 metres compared with 220 metres in phase I. Phase II will have three depots, namely, Madhavaram (27.8 hectares), SIPCOT (4.5 hectares), and Poonamallee (15.4 hectares).[67]



MRTS Takeover

The Chennai Mass Rapid Transit System is anticipated to be handed over to CMRL by the Southern Railway. All the stations from Velachery to Beach will be upgraded with the facilities of the metro stations which includes tracks, security, ticketing system and the rolling stock.[68]

Financials

When the project was initiated in 2007, the estimated cost of the first phase was ₹14,600 crore (US$1.7 billion) with a forecasted 5% increase.[69] As of 2014, the cost for the first phase escalated to ₹20,000 crore (US$2.4 billion).[70] The cost for the second phase was estimated at ₹44,000 crore (US$5.3 billion) with the project funded by the Japan International Cooperation Agency (JICA). JICA has sanctioned concessional loan amounts of ₹8,877 crore (US$1.1 billion) for the project.[71]

Operations

Chennai Metro runs in standard gauge measuring 1,435 millimetres (56.5 in) and the lines are double-tracked.[72] The rail tracks were manufactured in Brazil and the raw material was supplied by Tata Steel. The average speed of operation is 35 kilometres per hour (22 mph) and maximum speed is 80 kilometres per hour (50 mph).[73] Chennai Metro operates trains from 4:30 AM to 11:00 PM[74] with a frequency of one train every 4.5 minutes in peak hours and every 15 minutes in lean hours.[75] CMRL plans to increase the frequency to one train every 2.5 minutes once footfalls reach 600,000 passengers a day.[76]

Ticketing

The minimum fare is ₹ 10 and the maximum fare is ₹ 60.[77] The first car in each train will be first class with tickets costing twice as much as the second class tickets.[78][79]

Administration and maintenance

The Chennai metro has a depot at Koyambedu with ballast-less tracks of 15 kilometres (9.3 mi). It covers an area of 26 hectares and houses 36 trains.[80] The depot houses maintenance workshops, stabling lines, a test track and a washing plant for the trains.[81] It also houses the Operational Control Centre (OCC) where the movement of trains and real-time CCTV footages obtained from the stations and on-board cameras is monitored.[82] The company plans to build a headquarters building near the facility.[83]

To prevent corrosion of train surfaces due to bird droppings, the depot has been fitted with ultrasonic bird repellers and bird strobe lights to prevent birds from entering the depot.[80]

In 2018, CMRL began constructing an elevated depot at Wimco Nagar at a cost of ₹ 2,300 million to maintain and park trains running between Washermanpet and Wimco Nagar. The elevated depot covers an area of 3.5 ha, with provision to station 12 trains. Other facilities in the depot include three inspections lines, one emergency repair line, and a small plant for washing trains. There are also plans to build a multi-storey commercial building above the depot.[84]

Infrastructure

Rolling Stock

Alstom was awarded the contract to supply 168 coaches to Chennai Metro at a cost of ₹1,470 crore (US$180 million).[85] For Phase I, Alstom supplied 42 train-sets (metropolis model) composed of four coaches each[86] with each car measuring 22.5 metres (74 ft) in length and can accommodate 319 passengers.[87] The trains have a first-class compartment and a women's section with 14 seats in the first-class car and 44 seats in the normal car. The first nine trains were imported from Brazil and the remaining were manufactured at a new facility set up Tada about 75 kilometres (47 mi) from Chennai.[88][89] The trains are air-conditioned with electrically operated automatic sliding doors and a regenerative braking system. The cars operate on 25 KV AC through an overhead catenary system with a maximum speed of 80 kilometres per hour (50 mph).[90]

Power

The trains are connected to the grid via overhead electric cables and are equipped with regenerative braking with a capacity to recover 30–35% of the energy during braking.[91] The metro will require an average of 70 MW of power daily and the electricity will be supplied by Tamil Nadu Electricity Board.[92] Chennai Metro is also planning to use solar power for five of its stations on the elevated corridor, with a production capacity of 200 KW.[93]

Stations

See also: List of Chennai metro stations

A total of 32 stations have been planned along the two lines of the first phase with 20 underground stations. In the underground sections, a walkway runs along the length with cross passages every 250 metres (820 ft) for the maintenance and emergency evacuation.[94] The underground stations will have an average width of 220 metres (720 ft) to 390 metres (1,280 ft) and will go up to 50 feet (15 m) deep from the ground level.[95] The length of the underground stations is 230 metres (750 ft). However, the length of the stations, both underground and elevated, in Phase 1 extension is only 180 metres (590 ft) to save space.[96][56] The elevated stations will have three levels, namely, street, concourse and platform with the concourse level at an average height of 5.65 metres (18.5 ft) and platforms for boarding at 12.6 metres (41 ft) above the street level.[97] Underground stations will have two levels and will be air-conditioned. The metro stations are disabled and elderly friendly equipped with automatic fare collection system, announcement system, electronic display boards, escalators and lifts. The stations are equipped with non-slippery flooring with grip-rails, audio announcements and Braille facilities to help visually challenged passengers.[98] Parking facilities will be available only in select stations.[99]

Connections

The metro system will provide connections with various other transportation modes in the city.[100][101][102]

Accidents & Incidents

  • In August 2012, a construction worker was killed and six others were seriously injured due to a crane boom failure near Pachaiyappa's College.[103]
  • On 10 January 2013, a 22-year-old construction worker was killed and three others were injured at a Metro Rail site on Railway Station Road between Alandur and St Thomas Mount at around 3:45 am.[103]
  • On 11 January 2014, an accident involving a crane had occurred. The crane had toppled over, killing a 20-year-old construction worker and seriously injuring one other worker. The accident took place at 6:45 am at the construction site of the Saidapet station.[104]
  • On 17 June 2015, a 30-year-old Software Engineer, L Giridharan was killed on the spot when an iron rod fell on him at an under construction Metro Rail station near Officers Training Academy at St Thomas Mount around 9 am. The iron rod also hit motorcyclist U Mansoor, who escaped with minor injuries.[105]

Criticisms

Chennai metro is the second most expensive in the country after Mumbai.[106] In 2019, the Madras High Court questioned the state government on the scientific method it adopted in constructing the tunnels without disturbing the water bodies in the city.[107]

See also

References

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Wikimedia Commons has media related to Chennai Metro.
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