A city is a human settlement of a notable size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agreed definition of the lower boundary for their size. In a more narrow sense, a city can be defined as a permanent and densely settled place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organizations, and businesses, sometimes benefiting different parties in the process, such as improving the efficiency of goods and service distribution.
Historically, city dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more than half of the world population now lives in cities, which has had profound consequences for global sustainability. Present-day cities usually form the core of larger metropolitan areas and urban areas—creating numerous commuters traveling toward city centres for employment, entertainment, and education. However, in a world of intensifying globalization, all cities are to varying degrees also connected globally beyond these regions. This increased influence means that cities also have significant influences on global issues, such as sustainable development, climate change, and global health. Because of these major influences on global issues, the international community has prioritized investment in sustainable cities through Sustainable Development Goal 11. Due to the efficiency of transportation and the smaller land consumption, dense cities hold the potential to have a smaller ecological footprint per inhabitant than more sparsely populated areas. Therefore, compact cities are often referred to as a crucial element in fighting climate change. However, this concentration can also have significant negative consequences, such as forming urban heat islands, concentrating pollution, and stressing water supplies and other resources. (Full article...)
Aden (Arabic: عَدَنْ, romanized: ʿAdan, Old South Arabian: 𐩲𐩵𐩬) is a port city located in Yemen in the southern part of the Arabian peninsula, positioned near the eastern approach to the Red Sea. It is situated approximately 170 km (110 mi) east of the Bab-el-Mandeb strait and north of the Gulf of Aden. With its strategic location on the coastline, Aden serves as a gateway between the Red Sea and the Arabian Sea, making it a crucial maritime hub connecting Africa, Asia, and the Middle East. As of 2023, Aden City has a population of approximately 1,080,000 residents, making it one of the largest cities in Yemen.
The city, with its rich trade history, embraces a vibrant blend of Arabic, Indian, and African influences. Positioned near the Bab Al-Mandab Strait, a vital maritime route, it serves as a crucial seaport. The city boasts key infrastructure like Aden International Airport and notable healthcare institutions including Aljoumhouria Teaching Hospital (Queen Elizabeth II), Aden General Hospital, and Friendship Teaching Hospital. Aden is divided into eight districts: Tawahi, Mualla, Crater, Khur Maksar, Al Mansura, Dar Sad, Sheikh Othman, and Al Buraiqa. These form today's Aden Governorate. During British Colonialism, Aden referred to the area along the north coast of the Gulf of Aden, encompassing Tawahi, Mualla, Crater, and much of Khur Maksar District. The western harbor peninsula, known as Little Aden, now falls within the Al Buraiqa District. (Full article...)Faisalabad ( /fɑːɪsɑːlˌbɑːd/; Punjabi, Urdu: فیصل آباد, Punjabi pronunciation: [fɛːsə̆ləˌbäːd]; Urdu pronunciation: [fɛːsˈlɑˌbɑːd] ), formerly known as Lyallpur (Punjabi, Urdu: لائل پور), is the second largest city and industrial centre of the Pakistani province of Punjab. It is an industrial and metropolitan hub, being the third most populous city in Pakistan, with an estimated population of 3.7 million in 2023. Located in central Punjab's Rachna Do'āb, between the Ravi and Chenab rivers, it is the second-largest Punjabi-speaking city in the world. Faisalabad is one of Pakistan's wealthiest and most industrialized city, the largest industrial hub and second largest city of the wider Punjab region.
Historically one of the largest villages of Punjab, Lyallpur was one of the first planned cities within British India. It has long since developed into a cosmopolitan metropolis. Faisalabad was restructured into city district status; a devolution promulgated by the 2001 local government ordinance (LGO). The total area of Faisalabad District is 5,856 km2 (2,261 sq mi) while the area controlled by the Faisalabad Development Authority (FDA) is 1,326 km2 (512 sq mi). (Full article...)Urban sprawl (also known as suburban sprawl or urban encroachment) is defined as "the spreading of urban developments (such as houses, dense multi family apartments, office buildings and shopping centers) on undeveloped land near a more or less densely populated city". Urban sprawl has been described as the unrestricted growth in many urban areas of housing, commercial development, and roads over large expanses of land, with little concern for very dense urban planning. Sometimes the urban areas described as the most "sprawling" are the most densely populated. In addition to describing a special form of urbanization, the term also relates to the social and environmental consequences associated with this development. In modern times some suburban areas described as "sprawl" have less detached housing and higher density than the nearby core city. Medieval suburbs suffered from the loss of protection of city walls, before the advent of industrial warfare. Modern disadvantages and costs include increased travel time, transport costs, pollution, and destruction of the countryside. The revenue for building and maintaining urban infrastructure in these areas are gained mostly through property and sales taxes. Most jobs in the US are now located in suburbs generating much of the revenue, although a lack of growth will require higher tax rates.
In Europe, the term peri-urbanisation is often used to denote similar dynamics and phenomena, but the term urban sprawl is currently being used by the European Environment Agency. There is widespread disagreement about what constitutes sprawl and how to quantify it. For example, some commentators measure sprawl by residential density, using the average number of residential units per acre in a given area. Others associate it with decentralization (spread of population without a well-defined centre), discontinuity (leapfrogging development, as defined below), segregation of uses, and so forth. (Full article...)The following Wikimedia Foundation sister projects provide more on this subject:
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