Computer Sciences

Big Data Analytics to automatically detect events in smart cities

With a growing number of devices connected to the internet and countless people sharing their live experiences online, a huge amount of useful data is being generated every minute. The analysis of this data could improve ...

Computer Sciences

Using Google Street View to estimate travel patterns in cities

A study published today in PLOS ONE indicates that Google Street View has the potential to estimate how common cycling is in cities, and potentially other travel patterns too. The analysis of 2,000 Google Street View images ...

Computer Sciences

An algorithm that figures out if a tweet was sent while drinking

(Tech Xplore)—A team of researchers with the University of Rochester has developed a machine-learning algorithm that is able to determine if a tweet was sent while someone was under the influence of alcohol. The team also ...

Energy & Green Tech

Smog tower to help Delhi breathe but experts sceptical

A new attempt at purifying New Delhi's notoriously polluted air will see forty giant fans push out filtered air in the heart of the Indian capital's posh downtown shopping district.

Business

Trying to put the brakes on car ownership

To limit pollution and traffic congestion in Beijing, officials in 2011 imposed a citywide restriction on the number of automobiles residents can purchase annually. That policy has helped limit car sales and emissions. But ...

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City

A city is a relatively large and permanent settlement, particularly a large urban settlement. Although there are no agreed on technical definitions distinguishing a city from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law — for example an article of incorporation approved by the local cognizant (state) legislature separates towns from city government forms, rights, duties and privileges in Massachusetts — similar distinctions are made across the world, particularly in former colonies of the United Kingdom. Historically, in Europe, a city was understood to be an urban settlement with a cathedral; in later usages, especially in the United Kingdom and parts of Commonwealth of Nations, a city was a settlement with a royal charter.

Cities generally have advanced systems for sanitation, utilities, land usage, housing, and transportation and more. This proximity greatly facilitates interaction between people and businesses, benefiting both parties in the process.

A big city, or metropolis, may have suburbs and regions. Such cities are usually associated with metropolitan areas and urban sprawl, creating large numbers of business commuters. Once a city sprawls far enough to reach another city, this region can be deemed a conurbation or megalopolis.

This text uses material from Wikipedia, licensed under CC BY-SA