Automotive

Deep learning helps to predict traffic crashes before they happen

Today's world is one big maze, connected by layers of concrete and asphalt that afford us the luxury of navigation by vehicle. For many of our road-related advancements—GPS lets us fire fewer neurons thanks to map apps, ...

Engineering

Getting flying taxis off the ground

Engineers still have some kinks to work out before flying taxis become reality. But when they do hit the market, what will demand look like at different times and places? That's one question Suchithra Rajendran and Sharan ...

Business

Instacart CEO says online grocery shopping has room to grow

When the pandemic hit the U.S. last year, grocery delivery company Instacart suddenly became a lifeline for millions of consumers. Sales volumes skyrocketed; in one month, the company added 300,000 drivers to keep up with ...

Energy & Green Tech

How to make full use of wind energy in a compact city

Wind can be used as a renewable energy source that is clean, uncontaminated, and inexhaustible. Such characteristics have helped wind energy technologies to a key contributor to sustainable development in society, which is ...

Engineering

Tool for predicting pedestrian flow expands its reach

When urban development takes place, a traffic impact assessment is often needed before a project is approved: What will happen to auto traffic if a new apartment building or business complex is constructed, or if a road is ...

Automotive

Bumpy road as ageing Japan bets on self-driving cars

With an ageing population in need of transport, Japan is betting on autonomous cars, but an accident involving a self-driving showcase at the Paralympics illustrates the challenges ahead.

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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