Line 4 (Chennai Metro)

Transit line in Chennai, India

Line 4 (Orange Line)

Overview
Status| Under Construction
Owner| CMRL
Termini|

* Lighthouse
* Parandur

Stations| 27
Service
Type| Rapid transit
System| Chennai Metro
Operator(s)| Chennai Metro Rail Limited
Technical
Line length| 26.1 km (16.2 mi)
Number of tracks| 2
Character| 10.1 km Underground and 16.0 km Elevated
Track gauge| 1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification| 25 kV 50 Hz AC overhead catenary
Operating speed| 90 km/h (56 mph)

The Orange Line or Line 4 is one of the three lines of Chennai Metro, Phase 2 Project . The under construction line stretches from Lighthouse to Poonamallee Bypass . The line will consist of 27 stations, out of which 9 are underground and 18 are elevated.

## Phase II[edit]

E. Sreedharan, in 2013, stressed on the need of a greater expansion of Chennai metro network by undertaking subsequent phases. In July 2016, the then Chief Minister J. Jayalalithaa announced that Chennai Metro Phase 2 would be 104 km long and have 104 stations.[1] In July 2017, in a suo motu statement in the State Legislative Assembly, an extension in Phase II, involving an extension of Line 4 from Lighthouse up to Poonamallee, with the Madhavaram–Sholinganallur and Lighthouse–Poonamallee lines intersecting at Alwarthirunagar was announced, making Phase 2 116.1 km long.[2] The key focus for Phase 2 is to connect the northern (Madhavaram, Redhills) and southern parts (Siruseri, Sholinganallur) and the east parts of Chennai (Light house, Mylapore) to the western parts of Chennai (Porur, Poonamallee)

Line  | Terminal  | Length
(km)  | Number of stations  | Rolling stock

|
|
|
|

Line 3 | Madhavaram Milk Colony | Siruseri Sipcot 2 | 45.4 kilometres (28.2 mi)  | 48  | 56 trains of 3 cars each
Line 4 | Poonamallee Depot | Lighthouse | 26.1 kilometres (16.2 mi)  | 28 [3] | 36 trains of 3 cars each
Line 5 | Madhavaram Depot | Sholinganallur | 44.6 kilometres (27.7 mi)  | 45  | 56 trains of 3 cars each
| Total  |  | 116.1 km (72.1 mi)  | 121  | 148 trains of 3 cars each.

The present estimate for the phase 2 stands at Rs. 63,000 crore and received approval from the state government. Foundation stone for phase 2 was laid on 20 November 2020 by Union Home Minister Amit Shah and construction for the phase from Poonamallee to Power House of Line 4 commenced on 1 June 2021.[4][5] Addressing an event in Chennai, Prime Minister Narendra Modi on Sunday 14 February 2021 said the Centre has set aside Rs 63,000 crore which is one of the largest projects sanctioned for any city in one-go.[6] The map and list of stations for all 3 lines of Phase 2 has also been published by CMRL.

Chennai: As many as 19 elevated metro stations may connect Poonamallee in the city with the new greenfield airport planned in Parandur. On Thursday(4.01.24), Chennai Metro Rail Limited (CMRL) submitted the detailed feasibility report (DFR) to state government, recommending an elevated metrorail corridor between the two places via Thirumazhisai and Sriperumbdur over 43.63km, construction of which may cost ₹10,712 crore. The line will be an extension of phase-2 corridor from Lighthouse to Poonamallee covering 26.1km. A CMRL official said metro trains will take passengers inside the terminals at Parandur airport, proposed to be built over 4,500 acres. Passengers may also be able reach the airport quicker as there will only a few stations located every 5km or more between Poonamallee and Parandur. Some of the major locations the metro network is likely to connect with stations include Nazarathpet, Chembarambakkam, Thirumazhisai, Pappanchatiram, Chettipedu, Thandalam, Irungattukottai, Pennalur, Sriperumbudur, Sipcot, Mambakkam, Sunguvarchatiram, Neevallur and Parandur. “For the first 4km or 5km, we may have stations for every one kilometre. The total number of stations may reduce when we prepare the detailed project report,” said a CMRL official. “Once government approves the DFR, we will float tender and appoint an agent to prepare the DPR which may take around six months to get ready,” he said. A release said CMRL recommended metrorail connectivity considering the proposed new airport at Parandur, proposed bus terminus at Thirumazhisai and future growth potential along the corridor. Earlier, during the course of the feasibility study, it was assessed that there was a need for multiple stations in Parandur itself before the line terminates at the new airport because the government is planning to develop an aero city comprising a township with hotels, educational institutions, aviation ancillary units, an MRO (maintenance, repair and overhaul) hub for aircraft. The government had earlier announced a line from Poonamallee Bypass to Sriperumbudur as an extension of phase-2 corridor-4 from Lighthouse to Poonamallee Bypass (26.1km). Parandur was added after the location of the second airport was announced in August 2022 .[7]

The stations in phase II will be smaller at 300 m (980 ft) compared with 220 m (720 ft) in phase I. Phase II will have three depots, namely, Madhavaram (30 hectares), SIPCOT (10 ha [25 acres]), and Poonamallee (20 ha [49 acres]).[8]

* v
* t
* e

Chennai Metro

Legend

Phase II (Line 4)

| Lighthouse |  |

|  |

|
|
|
|

Kutchery Road |  |

|  |
Thirumayilai |  |

|  |
Alwarpet |  |

|  |
Bharathidasan Road |  |

|  |
Boat Club |  |

|  |
Nandanam |  |

|  |
Panagal Park |  |

|  |
Kodambakkam |  |

|  |
Kodambakkam Power House |  |

|  |
Vadapalani |  |

|  |
Saligramam |  |

|  |
Saligramam Ware House |  |

|  |
Alwarthiru Nagar |  |

|  |
Valasaravakkam |  |

|  |
Karambakkam |  |

|  |
Alapakkam |  |

|  |
Porur Junction |  |

|  |
Porur Bypass |  |

|  |
Thelliyaragaram |  |

|  |
Iyyapanthangal |  |

|  |
Kattupakkam |  |

|  |
Kumananchavadi |  |

|  |
Karayanchavadi |  |

|  |
Mullaithottam |  |

|  |
Poonamallee |  |

|  |
Poonamallee Depot |  |

|  |
Poonamallee Bypass |  |

|  |
Nazarathpet |  |

|  |
Thirumazhisai |  |

|  |
Chembarambakkam |  |

|  |
Kuthambakkam |  |

|  |
Pappanchatiram |  |

|  |
Chettipedu |  |

|  |
Thandalam |  |

|  |
Irungattukottai |  |

|  |
Pennalur |  |

|  |
Sriperumbudur |  |

|  |
Sipcot |  |

|  |
Mambakkam |  |

|  |
Sunguvarchatiram |  |

|  |
Neervalur |  |

|  |
Parandur |  |

|  |
|  |  |  |  |  |

## Stations[edit]

Orange Line

S.No  | Station Name  | Connections  | Layout  | Opened
English | Tamil
1 | Lighthouse | கலங்கரை விளக்கம் | None | Underground | UC
2 | Kutchery Road | கச்சேரி சாலை | None | Underground | UC
3 | Thirumayilai | திருமயிலை |  Thirumayilai railway station,  Purple Line | Underground | UC
4 | Alwarpet | ஆழ்வார்பேட்டை | None | Underground | UC
5 | Bharathidasan Road | பாரதிதாசன் சாலை | None | Underground | UC
6 | Boat Club | படகு குழாம் | None | Underground | UC
7 | Nandanam | நந்தனம் |  Blue Line | Underground | 25 May 2018
8 | Panagal Park | பனகல் பூங்கா | None | Underground | UC
9 | Kodambakkam | கோடம்பாக்கம் |  Kodambakkam railway station | Underground | UC
10 | Kodambakkam Power House | கோடம்பாக்கம் பவர் ஹவுஸ் | None | Elevated | UC
11 | Vadapalani | வடபழனி |  Green Line | Elevated | UC
12 | Saligramam | சாலிகிராமம் | None | Elevated | UC
13 | Saligramam Ware House | சாலிகிராமம் கிடங்கு | None | Elevated | UC
14 | Alwarthiru Nagar | ஆழ்வார்திருநகர் |  Red Line | Elevated | UC
15 | Valasaravakkam | வளசரவாக்கம் |  Red Line | Elevated | UC
16 | Karambakkam | காரம்பாக்கம் |  Red Line | Elevated | UC
17 | Alapakkam | ஆலப்பாக்கம் |  Red Line | Elevated | UC
18 | Porur Junction | போரூர் சந்திப்பு | None | Elevated | UC
19 | Porur Bypass | போரூர் புறவழிச்சாலை | None | Elevated | UC
20 | Thelliyaragaram | தெள்ளியார் அகரம் | None | Elevated | UC
21 | Iyyapanthangal | ஐயப்பன்தாங்கல் |  Bus Depot | Elevated | UC
22 | Kattupakkam | காட்டுப்பாக்கம் | None | Elevated | UC
23 | Kumananchavadi | குமணன்சாவடி | None | Elevated | UC
24 | Karayanchavadi | கரையான்சாவடி | None | Elevated | UC
25 | Mullaithottam | முல்லைத்தோட்டம் | None | Elevated | UC
26 | Poonamallee | பூவிருந்தவல்லி |  Bus Terminus | Elevated | UC
27 | Poonamallee Depot | பூவிருந்தவல்லி டிப்போ | None | Elevated | UC
28 | Poonamallee Bypass | பூவிருந்தவல்லி புறவழிச்சாலை | None | Elevated | UC
NA | Nazarathpet | நசரத்பேட்டை | None | Elevated | Phase 2 extension
NA | Thirumazhisai | திருமழிசை | None | Elevated | Phase 2 extension
NA | Chembarambakkam | செம்பரம்பாக்கம் | None | Elevated | Phase 2 extension
NA | Kuthambakkam | குத்தம்பாக்கம் | Bus Terminus | Elevated | Phase 2 extension
NA | Pappanchatiram | பாப்பன்சத்திரம் | None | Elevated | Phase 2 extension
NA | Chettipedu | செட்டிபேடு | None | Elevated | Phase 2 extension
NA | Thandalam | தண்டலம் | None | Elevated | Phase 2 extension
NA | Irungattukottai | இருங்காட்டுகோட்டை | None | Elevated | Phase 2 extension
NA | Pennalur | பென்னலூர் | None | Elevated | Phase 2 extension
NA | Sriperumbudur | திருபெரும்புதூர் | None | Elevated | Phase 2 extension
NA | Sipcot | சிப்காட் | None | Elevated | Phase 2 extension
NA | Mambakkam | மாம்பாக்கம் | None | Elevated | Phase 2 extension
NA | Sunguvarchatiram | சுங்குவார்சத்திரம் | None | Elevated | Phase 2 extension
NA | Neervalur | நீர்வளூர் | None | Elevated | Phase 2 extension
NA | Parandur | பரந்தூர் |  Chennai Greenfield Airport | Elevated | Phase 2 extension

## Removed and Renamed Stations[edit]

Orange Line

S.No  | Old Station Name  | Connections  | Layout  | New Station Name
English | Tamil | English | Tamil
1 | Foreshore Estate | பட்டினப்பாக்கம் சாலை | None | N/A | N/A | N/A
2 | Natesan Park | நடேசன் பூங்கா | None | N/A | N/A | N/A
3 | Meenakshi College | மீனாட்சி கல்லூரி | None | N/A | N/A | N/A
4 | Adyar Gate Junction | அடையார் கேட் சந்திப்பு | N/A | Underground | Boat Club | படகு குழாம்
5 | Avichi School | அவிசி பள்ளி | N/A | Elevated | Saligramam Ware House | சாலிகிராமம் கிடங்கு
6 | Chennai Bypass | சென்னை புறவழிச்சாலை | N/A | Elevated | Porur Bypass | போரூர் புறவழிச்சாலை
7 | Sri Ramachandra Hospital | ஶ்ரீ இராமசந்திரா மருத்துவமனை | N/A | Elevated | Thelliyaragaram | தெள்ளியார் அகரம்

## References[edit]

1. ^ Sekar, Sunitha. "104 km, 104 stations: Unveiling Phase II of Metro". The Hindu. Retrieved 24 January 2017.
2. ^ "Metro's second phase to go up to Poonamallee". The. Chennai: Kasturi & Sons. 20 July 2017. Retrieved 1 October 2017.
3. ^ U, Tejonmayam. "Metro to link route planned under monorail network". The Times of India. Retrieved 17 February 2019.
4. ^ Sekar, Sunitha. "Detailed project report for Phase II of Metro Rail ready". The Hindu. Retrieved 24 January 2017.
5. ^ U, Tejonmayam. "Chennai: Metro rail to trim stations under phase 2". The Times of India. Retrieved 24 January 2017.
6. ^ Dipak K, Dash. "Ground work for Chennai metro rail phase-2 hit". Times of India. Retrieved 19 February 2021.
7. ^ Sekar, Sunitha (11 March 2019). "Chennai Metro phase II to have three-coach and six-coach trains". The Hindu. Chennai: Kasturi & Sons. p. 2. Retrieved 1 May 2019.
8. ^ TOI, Sunitha (25 April 2019). "For phase II, Chennai Metro will need less private land". Times of India. Chennai: Kasturi & Sons. p. 3. Retrieved 2 May 2019.

* v
* t
* e

Chennai Metro

Orange Line 4|

* Poonamallee Bypass
* Lighthouse

Depot(s)

* ■ Poonamallee (TBC)

See also|

* List of Chennai Metro stations
* Chennai Metro Rail Limited

Bold represents terminal station on the respective main or branch line
*Stations in Italics are Under Construction

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