

Highway is a word used to describe roads made for travel by the public between important places, such as cities, towns and landmarks. The word highway can also be different between countries, and can mean a road, freeway, superhighway, autoroute, autobahn, parkway, expressway, autostrasse, autostrada, byway, or motorway.
Highways come in many different designs. They can include many lanes of traffic, a median (strip of lane or barrier) between lanes of opposing traffic, and access control (ramps and bridges). Highways can also be as simple as a two-lane road.
In many countries, these roads are numbered to easily tell them apart. These numbered highways are usually called routes. The United States includes a system called the Interstate Highway system, controlled by AASHTO, where major north/south routes are odd numbered and east/west are even numbered. In Canada, routes that are in the 400s are freeways. In China, types of routes are separated by the first letter of the route; "G" for national road, "S" for provincial road and "Y" for rural roads. Highways are sometimes criticised because of the pollution cars make when driving highways. When too many cars travel along a highway, traffic slows down; this is known as a traffic jam. Public transportation (such as buses) and special lanes for those who have a given number of people in a car are used to help stop these problems.
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Images for kids
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Ontario Highway 401, in Ontario, Canada.
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The Pan-American Highway in the Greater Buenos Aires, Argentina.
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Highway going on Bangalore in India
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Commonwealth Avenue, a major intercity highway in northeastern Manila metropolitan area, the Philippines.
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The Cross Bronx Expressway in New York, United States uses asphalt and concrete pavement, both of which are popular road surfaces on highways.
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Highway bus lane on Gyeongbu Expressway in South Korea.
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A Polish expressway in Bielsko-Biała
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Highway 401 with collector and express lanes in Mississauga, Ontario, Canada
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Highway 404 (southbound) with HOV lanes in Toronto, Ontario, Canada
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The Pan-American Highway where it serves as the main street in Máncora, Peru
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A typical expressway in China
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Tolo Highway in Hong Kong
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32-lane toll plaza at an Indian expressway
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A highway in Kuwait City
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North Luzon Expressway, the Philippines
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Namhae Expressway in Jinju, South Korea
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Ja-Ela Interchange in the Airport Expressway(E03) in Ja-Ela, Sri Lanka
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3/4 highway interchange in Dubai, United Arab Emirates
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National Route 1A near Từ Sơn, Vietnam
