A megacity is a very large city, typically with a population of more than 10 million people. Precise definitions vary: the United Nations Department of Economic and Social Affairs in its 2018 "World Urbanization Prospects" report counted urban agglomerations having over 10 million inhabitants. A University of Bonn report held that they are "usually defined as metropolitan areas with a total population of 10 million or more people". Others list cities satisfying criteria of either 5 or 8 million and also having a population density of 2,000 per square kilometre. The terms conurbation, metropolis, and metroplex are also applied to the latter.
A metropolitan area or metro is a region that consists of a densely populated urban agglomeration and its surrounding territories sharing industries, commercial areas, transport network, infrastructures and housing. A metro area usually comprises multiple principal cities, jurisdictions and municipalities: neighborhoods, townships, boroughs, cities, towns, exurbs, suburbs, counties, districts, as well as even states and nations like the eurodistricts. As social, economic and political institutions have changed, metropolitan areas have become key economic and political regions.
A conurbation is a region comprising a number of metropolises, cities, large towns, and other urban areas which through population growth and physical expansion, have merged to form one continuous urban or industrially developed area. In most cases, a conurbation is a polycentric urbanised area in which transportation has developed to link areas. They create a single urban labour market or travel to work area.
An urban area, built-up area or urban agglomeration is a human settlement with a high population density and infrastructure of built environment. Urban areas are created through urbanization and are categorized as cities, towns, conurbations or suburbs. In urbanism, the term contrasts to rural areas such as villages and hamlets; in urban sociology or urban anthropology it contrasts with natural environment. The creation of earlier predecessors of urban areas during the urban revolution led to the creation of human civilization with modern urban planning, which along with other human activities such as exploitation of natural resources led to a human impact on the environment. "Agglomeration effects" are in the list of the main consequences of increased rates of firm creation since. This is due to conditions created by a greater level of industrial activity in a given region. However, a favorable environment for human capital development would also be generated simultaneously.
Kozhikode, or Calicut district, is one of the 14 districts in the Indian state of Kerala, along its Southwestern Malabar Coast. The city of Kozhikode, also known as Calicut, is the district headquarters. The district is 67.15% urbanised.
Kerala is a state in south-western India. Most of Kerala's 34.8 million people are ethnically Malayalis. Most of the Malayalam and English speaking Keralites derive their ancestry from Dravidian communities that settled in Kerala. Additional ancestries derive from millennia of trade links across the Arabian Sea, whereby people of Arab, Jewish, Syrian and other ethnicities settled in Kerala. Many of these immigrants intermarried with native Malayalam speakers resulting in formation of many Muslims and Christians in Kerala. Some Muslims and Christians thus take lineage from Middle Eastern settlers mixed with local population.
Valanchery is a major town and one of the 12 municipalities in Malappuram district, Kerala, India. It is one of the four municipalities in Tirur Taluk, besides Tirur, Kottakkal, and Tanur. It is situated about 40 kilometres (25 mi) southeast to Karipur International Airport and 25 kilometres (16 mi) southwards to the district headquarters, and forms a part of Malappuram metropolitan area. It is also one of the major commercial towns under the Malappuram urban agglomeration. Valanchery, which was a part of the erstwhile princely state of the Valluvanad in the early medieval period, had been under the direct control of the Zamorin of Calicut following the Tirunavaya war of 14th century CE. During British Raj, Valanchery was included in the Ponnani Taluk of erstwhile Malabar District. Vattapara accident zone is an accident zone near Valanchery. Valanchery is situated on National Highway 66.
A metropolis is a large city or conurbation which is a significant economic, political, and cultural area for a country or region, and an important hub for regional or international connections, commerce, and communications.
The Malappuram Metropolitan Area or Malappuram Urban Agglomeration is an urban agglomeration centred around the city of Malappuram, Manjeri in Malappuram district, Kerala, India. It is the 25th largest urban agglomeration in India and the 4th largest in Kerala.
Kollam Metropolitan Area is the 4th largest Metropolis in Kerala and 14th largest urban agglomeration in South India. It is one of the 10 fastest growing cities in the world covering an area of 364.51 km2 (2015) with a 31.1% urban growth between 2015 and 2020 as per the survey conducted by Economist Intelligence Unit (EIU) based on urban area growth during January 2020.
The Madurai Metropolitan Area, is the 31st largest metropolitan area in India and is the third largest metropolitan area in the state of Tamil Nadu only next to Chennai and Coimbatore. The Madurai Metropolitan Area consists of the city of Madurai and its suburbs in Madurai district.
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