The Cities Portal

The city of Erbil in Kurdistan has a radial urban structure centred on an ancient fortress.

A city is a human settlement of a notable size. It 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...)

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View of Pompeii and Mount Vesuvius

Pompeii (/pɒmˈp(i)/ pom-PAY-(ee), Latin: [pɔmˈpei̯.iː]) was an ancient city located in what is now the comune of Pompei near Naples in the Campania region of Italy. Pompeii, along with Herculaneum and many villas in the surrounding area (e.g. at Boscoreale, Stabiae), was buried under 4 to 6 m (13 to 20 ft) of volcanic ash and pumice in the Eruption of Mount Vesuvius in 79 AD.

Largely preserved under the ash, the excavated city offers a unique snapshot of Roman life, frozen at the moment it was buried, although much of the detailed evidence of the everyday life of its inhabitants was lost because of excavations. It was a wealthy town, with a population of ca. 11,000 in AD 79, enjoying many fine public buildings and luxurious private houses with lavish decorations, furnishings and works of art which were the main attractions for the early excavators. Organic remains, including wooden objects and human bodies, were interred in the ash. Over time, they decayed, leaving voids that archaeologists found could be used as moulds to make plaster casts of unique, and often gruesome, figures in their final moments of life. The numerous graffiti carved on the walls and inside rooms provide a wealth of examples of the largely lost Vulgar Latin spoken colloquially at the time, contrasting with the formal language of the classical writers. (Full article...)
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Clockwise from top: Downtown from Rensselaer; middle-class housing in the Helderberg neighborhood; Palace Theatre; Empire State Plaza from the Cultural Education Center; North Pearl Street at Columbia Street; and the State Quad at SUNY Albany

Albany (/ˈɔːlbəni/ AWL-bən-ee) is the capital city of the U.S. state of New York and the seat of Albany County. It is located on the west bank of the Hudson River, about 10 miles (16 km) south of its confluence with the Mohawk River, and about 135 miles (220 km) north of New York City.

The city is known for its architecture, commerce, culture, institutions of higher education, and rich history. It is the economic and cultural core of the Capital District of the State of New York, which comprises the Albany–SchenectadyTroy Metropolitan Statistical Area, including the nearby cities and suburbs of Troy, Schenectady, and Saratoga Springs. With an estimated population of 1.1 million in 2013, the Capital District is the third most populous metropolitan region in the state. As of 2020, Albany's population was 99,224. (Full article...)
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Road Space Requirements

The compact city or city of short distances is an urban planning and urban design concept, which promotes relatively high residential density with mixed land uses. It is based on an efficient public transport system and has an urban layout which – according to its advocates – encourages walking and cycling, low energy consumption and reduced pollution. A large resident population provides opportunities for social interaction as well as a feeling of safety in numbers and "eyes on the street". It is also arguably a more sustainable urban settlement type than urban sprawl because it is less dependent on the car, requiring less (and cheaper per capita) infrastructure provision (Williams 2000, cited in Dempsey 2010).

Achieving a compact city does not just mean increasing urban density per se or across all parts of the city. It means good planning to achieve an overall more compact urban form:

Governments of sprawling cities can take many actions to seek a more compact form, often also involving higher densities. Other cities, such as Cairo, with large, dense slum areas, are responding by reducing urban densities in core areas. In either case, limiting outward urban expansion can be combined with more efficient use of land resources and more effective protection of natural resources. City growth can be physically limited in this way through legislated urban growth boundaries, non-urban green belts, and the quarantining of development in certain areas.

The compact city model, ideally, creates benefits that are attractive to modern urbanites. The desired benefits include shorter commute times, reduced environmental impact of the community, and reduced consumption of fossil fuels and energy. However, research on compact cities from around the globe suggests that these outcomes are not guaranteed. To make matters worse, the design of the cities is limiting residents’ access to green space and reasonable views. For the compact city model to gain in popularity, it is necessary to review both their pros and cons. (Full article...)
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