Chennai metropolitan area
Metropolitan area includes a city and it's suburbs. For the city, visit Chennai
|Chennai metropolitan area|
|• Total||1,189 km2 (459 sq mi)|
|• Density||8,600/km2 (22,000/sq mi)|
|Time zone||Indian Standard Time (UTC+5:30)|
The Chennai metropolitan area is the fourth most populous, and the fifth largest metropolitan area in India and is the 22nd most populous city in Asia or the 40th most populous city in the world. The CMA consists of the metropolitan city of Chennai (Madras) and its suburbs located in Kanchipuram district and Thiruvallur district. The Chennai Metropolitan Development Authority (CMDA) is the nodal agency that handles town planning and development within the metro area. Since 1974, an area encompassing 1189 km2 around the city has been designated as the Chennai metropolitan area (CMA) and the CMDA has been designated as the authority to plan the growth of the city and the area around it.
Chennai metropolitan area's economy of US$58.6 billion PPP (US$17 billion nominal GDP, 2010) is currently rated the fourth-largest economy in India, ahead of the Bangalore metropolitan area and after the Kolkata metropolitan area.[note 1]
While no official figure has been given for the population in the newly expanded Chennai metropolitan area, the urban population was estimated to be over 10 million in early 2017. The 2011 census figure for the population of the Chennai "UA/Metropolitan region" was 8,653,521.
It includes the whole of the Chennai District, along with the Ambattur, Gummidipoondi, Madhavaram, Ponneri, Poonamallee and Tiruvallur taluks of the Tiruvallur District, and the Alandur Kanchipuram, Sholinganallur, Sriperumbudur and Tambaram taluks of the Kanchipuram District.
The CMA falls in three Districts of the Tamil Nadu State viz. Chennai District, part of Thiruvallur District, and part of Kancheepuram District. The extent of the Chennai District (covered in Chennai Municipal Corporation area) is176 km2 and comprises 55 revenue villages in 10 Taluks [viz. (i) Tondiarpet Taluk, (ii) Perambur Taluk, (iii) Purasawalkam Taluk, (iv) Egmore Taluk, (v) Mambalam Taluk, (vi) Guindy Taluk, (vii) Mylapore Taluk, (viii) Velachery Taluk, (ix) Aminjikarai Taluk and (x) Ayanavaram Taluk. In Thiruvallur District out of total district area of 3427 km2, 637 km2. in Ambattur, Thiruvallur, Ponneri and Poonamallee taluks fall in CMA. In Kancheepuram District out of 4433 km2, 376 km2 in Tambaram, Sriperumbudur and Chengalpattu Taluks fall in the metropolitan area.
CMA region has about 3,000 water bodies, most of which have been encroached upon by real estate dealers and small communities.
|1||Chennai Corporation (Madras Corporation), Municipalities and Panchayats||Civic management in their area of jurisdiction|
|2||Tamil Nadu Housing Board||provision of plots and ready built houses, Sites and Services schemes|
|3||Metropolitan Transport Corporation||Bus Transport|
|4||Southern Railway||Chennai suburban railway and Chennai MRTS|
|5||Chennai City Traffic Police||Traffic Management Schemes|
|6||Tamil Nadu Electricity Board||Electricity generation and supply|
|7||Public Works Department||Implementation & Maintenance of macro drainage system|
|8||Chennai Metropolitan Development Authority||Urban planning, co -ordination of project implementation|
|9||Chennai MetroWater Supply and Sewage Board||Water Supply & Sewerage facilities for CMA|
|10||Tamil Nadu Slum Clearance Board||Provision of housing, infrastructure and livelihood programs in slum areas|
|11||Aavin Co operative society||Providing Milk through co-operative society to the people of Chennai|
The first plans to expand the CMA were proposed by the CMDA in 2011. The need for expansion arose as several nearby settlements such as Sriperumbudur, Kelambakkam, Tiruvallur and Maraimalai Nagar had been undergoing rapid development and had to be incorporated under the CMDA planning strategy. Also, the planning bodies of other metropolises in India such as Bengaluru, New Delhi and Hyderabad had already redefined their respective metropolitan regions to include much larger areas and corresponding regional planning was being done. The CMA, however, hasn't been altered since it was first defined in 1974. The area was limited to 1,189 km2 (459 sq mi) which is among the smallest in the country.
In July 2012, the CMDA suggested two options to the Government of Tamil Nadu for expanding the area:
- The first option includes whole of the Chennai district, Madhavaram, Ambattur, Poonamallee, Ponneri, Gummidipoondi, Uthukottai, and Thiruvallur taluks of the Tiruvallur district, and Alandur, Pallavaram, Tambaram, Sholinganallur, Chengalpattu, Thiruporur, and Sriperumbudur taluks of the Kancheepuram district extending up to 4,459 km2 (1,722 sq mi).
- The second option includes the whole of Chennai, Tiruvallur and Kancheepuram districts and the Arakkonam taluk of Vellore district and extends to a total of 8,878 km2 (3,428 sq mi).
Chief planners of the CMDA have suggested that the second option is more feasible. Another planning model, similar to the National Capital Region was also examined by the CMDA. In order to plan for balanced regional development, developing a larger road network, implementing an integrated transport plan and identifying a Chennai Mega Region have become necessary.
On 3 July 2017 the Government of Tamil Nadu's minister for housing and urban development, Udumalai K. Radhakrishnan announced its intention to expand the CMA to 8,878 km2 (3,428 sq mi). The extension will cover all of Kancheepuram and Tiruvallur districts and Arakkonam taluk of Vellore district, as proposed in July 2012. Having completed a feasibility study, a "strategic regional plan" was now required, and completion of the whole process was expected by July 2018.
On 22 January 2018 the Government of Tamil Nadu issued order G.O. (Ms) No.13 to "declare the intention to include additional areas in the Chennai Metropolitan Planning Area" under section 2, clause (23-a) of the Tamil Nadu Town and Country Planning Act, 1971 (Tamil Nadu Act 35 of 1972). The additional areas to be included were as proposed by the CMDA in 2017. Under Tamil Nadu Act 35 the Tamil Nadu government is required to allow reasonable opportunity (two months according to §10.3) for inhabitants, local authorities and institutions in the area to comment upon or object to such an expansion proposals. Although less than 100 objections to the expansion plans were received, a public interest litigation action was launched at the Madras High Court in March 2018.
- Rankings of cities by metropolitan area GDP can vary as a result of differences in the definition of the boundaries and population sizes of the areas compared and the method used to calculate output
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