Mitchell Freeway in Perth, Western Australia
:''For other uses, see
Highway (disambiguation).''
A
highway is a major
road within a
city, or linking several cities together. It includes roads known as
interstate highway,
freeway,
motorway and
autobahn, where a full description varies by country. Generally, a highway is a road which has multiple
lanes of
traffic in each direction, often with a physical division (median) between opposing traffic, and separate access ramps to and from the highway which are more widely separated than connections on a standard road and are often grade-separated. A highway may prohibit access by pedestrians and limit what vehicles may travel on it.
Historically, a highway was any major road travelling a long distance outside of a city. Early roads between cities would sometimes suffer from
highwaymen who would rob people travelling the route.
In the
20th century, however, the word generally came to be used only for high-speed, often specially-designed
automobile routes. On 10 September, 1913 the first paved coast-to-coast highway opened in the US.
Highways usually have a higher
speed limit than other roads because they have additional lanes and are designed for driving at a higher speed. In remote areas, a highway may have
rest areas where motorists may stop and relax before resuming a long drive.
By convention, the lane nearest the median on a multi-lane highway is called the
passing lane.
The
United States has a vast network of national highways (
Interstate highways) linking the different
U.S. states together, as does
Australia albeit on a much smaller scale and mostly concentrated on the southeast coastline. Some highways, like the
Pan-American Highway or the European routes, bridge multiple countries. With the latter a single road may have several national designations in addition to the European one.
Probably the most famous highway in the United States is Route 66, as immortalised in the song "(Get Your Kicks On) Route 66", while if one follows
Australia's Highway 1 the driver can travel from state capital to state capital, almost the entire way around the whole country.
The longest single national highway in the world is the
Trans Canada Highway, which runs from
Victoria, British Columbia, on the
Pacific Coast, through ten provinces to the
Atlantic Coast, at St. John's, Newfoundland.
Nomenclature
The terms used for various types of highways such as
freeway,
expressway,
motorway and
autobahn, vary between countries or even regions within a country. In some places a
highway is a specific type of major road that is distinct from
freeway or
expressway; in other places the terms may overlap. In law
highway may mean any public road or canal. However, in some countries, the term
highway is not generally used at all.
Australia
In
Australia, a
highway is a distinct type of road from freeways and motorways. The word
highway is generally used to mean major roads connecting large cities, towns and different parts of
metropolitan areas. Metropolitan highways often have traffic lights at intersections, and rural highways usually have only one lane in each direction. The words
freeway or
motorway are generally reserved for the most arterial routes, almost always with no traffic light intersections and usually significantly straightened and widened. The term
motorway is used in some Australian cities to refer to freeways that have been allocated a metropolitan route number, and in Sydney, a
motorway has a toll, whereas a
freeway is free of charge. It is now possible to travel from Melbourne to Sydney without having to stop at a traffic light. Roads may be part-highway and part-freeway until they are fully upgraded.
New Zealand
In
New Zealand, a
motorway runs through urban areas and an
expressway runs through rural areas. Both motorways and expressways generally have no access to adjacent properties and no facility for pedestrians or cyclists. New Zealand's main routes are designated
state highways. State Highway 1 is the only route to run through both the North and South Islands, and runs (in order north-south) from
Cape Reinga to
Wellington in the
North Island, and from
Picton to
Bluff in the
South Island. State Highways 2-5 are main routes in the North Island, State Highways 6-9 in the South Island, and state highways numbered from 10 onwards are generally found in numerical order from north to south. State highways usually incorporate different types of roads, for example, State Highway 1 from
Auckland to
Hamilton incorporates the Northern and Southern Motorways in the Auckland area, the Waikato Expressway, and a rural road before passing through the streets of Hamilton. The term
freeway is rarely used relating to New Zealand roads, and can only be considered an
Americanism.
Brazil
In
Brazil, highways (or expressway/freeway) are named "rodovia", and Brazilian highways are divided in two types: regional highways (generally of less importance and entirely inside of one state) and national highways (of major importance to the country). In Brazil, rodovia is the name given exclusively to roads connecting two or more cities with a sizable distance separating the extremes of the highway. Urban highways for commuting are uncommon in Brazil, and when they are present, they are receives different names, depending of the region (Avenida, Marginal, Linha, etc). Very rarely names other than "rodovia" are used.
Regional highways are named YY-XXX, where YY is the abbreviation of the state where the highway is running in and XXX is a number (e.g. SP-280; where SP means that the highway is running entirely in the state of São Paulo).
National highways are named BR-XXX. National highways connects multiples states altogether, are of major importance to the national
economy and/or connects Brazil to another country. The meaning of the numbers are:
- 001-100 - it means that the highway runs radially from Brasília. It is an exception to the cases below.
- 101-200 - it means that the highway runs in a south-north way.
- 201-300 - it means that the highway runs in a west-east way
- 301-400 - it means that the highway runs in a diagonal way (northwest-southeast, for example)
- 400-499 - another exception, they are less important highways and its function is to connect a city to an arterial highway nearby
Often Brazilian highways receives names (famous people, etc), but even though, they continue to have a YY/BR-XXX name (example: Rodovia Castelo Branco is also SP-280).
See List of Brazilian Highways
Canada
- In Canada, there is no national standard for nomenclature, although highway appears more popular in all areas except Ontario, where expressway or 400-Series is used, and Quebec where highways are called autoroutes (borrowing the term from French). Nova Scotia numbers its freeways by the routes they parallel, for example, highway 101 parallels highway 1.
- The Trans Canada Highway, the highway (mostly four lane, sometimes less, sometime more) that crosses the entire country (and entering all ten provinces), holds the record as the longest national highway in the world. The only portions of this road not considered to be of freeway status are in the British Columbia Rocky Mountains, Northern Ontario, and in Newfoundland.
China
"Highways" in China, more often than not, refer to China National Highways. The multi-lane, central-separation routes are instead called
expressways.
In
Mainland China, private companies reimbursed through
tolls are the primary means of creating and financing the
National Trunk Highway System.
There is actually no separate classification for
expressway (which is the term more often used in the PRC). Most likely, they are lumped with first-grade
guodaos (meaning
National roads). Beneath
guodaos in rank level are
shengdaos (provincial roads) and
xiandaos (pronounced
hsien-daos or
shien-daos, which equate to county-level roads). Some expressways are numbered with a leading zero (e.g. G030).
Freeway was used on a few expressways (such as the
Jingshi Freeway) before
expressway was chosen as a standarised term.
The Chinese name for expressways (or freeways, as they used to be called) is uniform; in pinyin, it is
gao su gong lu, which literally means "high speed
public road".
In the mainland of the PRC,
highway does not refer to a freeway or expressway, but instead to a normal road equivalent to an "A"-level road in Britain, or a class-one non-expressway. This can cause some confusion, though.
Hong Kong
In
Hong Kong, the high speed roads are referred to as
expressways, but some are named as
highways ('Yuen Long Highway',
Tolo Highway etc.).
India
Main article Indian highways
In India,
Highway refers to one of the many
National Highways that run up to a total length of about 58000 kilometers. An expressway refers to any elevated road with grade-separated intersections.
Malaysia
The highest level of major roads in
Malaysia,
expressway (lebuhraya), has full access control, grade separated junctions, and mostly
tolled. The expressways link the major state capitals in
Peninsular Malaysia and major cities in
Klang Valley.
Highway is lower level with limited access control, some at-grade junctions or roundabouts, and generally with 2 lanes in each separated direction. These are generally untolled and funded by the federal government, hence the first one is called Federal Highway linking
Klang and
Kuala Lumpur.
The trunk roads linking major cities and towns in the country are called
federal trunk roads, and are generally 2 lanes single carriageway roads, in places with a third climbing lane for slow lorries.
South Africa
Colloquially, the terms "freeway," "highway," and "motorway" are used synonymously. There are very few references to the term "expressway" in South Africa. A freeway, highway or motorway refers to a divided dual carriageway with limited access/egress, with at least two lanes in either direction. A central island, usually either with drainage, foliage or high-impact barriers, provides a visible separation between carriageways in opposite directions. As with the UK and Australia, South Africans drive on the left-hand side of the road and all steering wheels are on the right-hand side of vehicles.
Freeways are designated with one of three labels: N (in reference to national roads), R (short for "route," in reference to provincial roads), and M (in reference to metropolitan roads). This has more to do with the location of a road and its function than anything else. In addition, "N" roads usually run the length of the country over long distances, "R" roads usually inter-connect cities and towns within a province, and "M" roads carry heavy traffic in metropolitan areas. Route markings also determine who paid for the road: "N" was paid for by national government, "R" by provincial government and "M" by local government. In recent years, some "R" roads have been re-designated as "N" roads, so that control and funding comes from the South African National Roads Agency.
Switzerland
The term
Autobahn is used for normal expressways where there is a central physical structure separating two different directional carriageways. This is often translated into English as
motorway.
In express routes where there is no central physical structure separating two different directional carriageways, but crossings are still motorway-like otherwise, and traffic lights are not present, the road is instead called an
Autostrasse, translated into English as a
motorroad.
Autostrassen often have a lower speed limit than
Autobahnen.
Great Britain and Ireland
In
Great Britain and
Ireland, unless a route is classified as a
motorway, the term used may be
main road,
trunk road,
A road/'B' road, or, where appropriate,
dual carriageway. In the law of
England and Wales the term
highway covers everything from a
footpath (for foot passage only), to a
bridleway (for foot, bicycle and equestrian use), to a byway open for all traffic (for all the aforementioned users, plus any motorised user), to unclassified county roads, classified roads, trunk roads, motorways and special roads. In British law, there is no definition of "road", and generally the most common usage refers to:
right
In England and Wales the public are traditionally given a "right of way" by the
Crown to use a particular highway or
byway. This is somewhat different than the system in many republics, where the territory of the nation is regarded as belonging to the public at large and there is a presumption that an individual may travel anywhere that they are not lawfully prohibited from doing so.
United States
In the U.S., the terms
expressway and
freeway are legally defined by federal regulation and under the laws of most
U.S. states according to
civil engineering usage. However, the distinction between these two terms is not universal, and in several states which built freeways very early on (including
Connecticut,
Illinois,
New Jersey,
New York, and
Pennsylvania), the terms
expressway and
freeway have the same meaning. In those states,
expressway, the older usage, is often preferred.
In New Jersey and Pennsylvania, newer roads are often officially styled
freeways, where older roads retain the title "expressway". In
New England and
New York, the term
freeway is rarely if ever used;
highway is the generic term for high-speed limited-access roads, though
Expressway and
Freeway are both used as part of the proper name of some roads. In the rest of the country,
freeway is the usual term; however, the distinction between freeways and highways is not always as clear or well-understood as it is in
California, which has many of both kinds of highway. In California, freeways are divided, grade-separated, controlled-access highways where private driveways, pedestrians, and bicyclists are forbidden, where speed limits range from 55 to 70 miles per hour, and are usually elevated within major cities. Highways are divided, but may have at-grade or grade-separated intersections as demand requires, private driveways are minimized (but not completely forbidden), bicyclists and pedestrians are sometimes allowed, and the speed limits range from 45 to 55 miles per hour. Within a major city a highway can have commercial buildings along it. All
interstate highway routes in California are freeways, most important intracity state routes are freeways, and most important intercity state routes are highways (with sections being upgraded to freeways as necessary).
In the U.S., particularly in
statutes, the term
highway technically has the broader meaning than that given at the beginning of this article (encompassing all state government-maintained roads or canals for cross-city or inter-city traffic), but in colloquial usage is often used to refer only the subset of that category that includes roads less important than a freeway. That subset generally includes roads with 2, 4, or 6 lanes, with or without a center divider, that have at-grade intersections and driveways connecting to adjacent properties. However, even then, such highways are usually built to higher standards (wider lanes and more durable pavement) than the connecting arterial routes, streets, alleys, and driveways.
The highest continuous road in the United States is the
Trail Ridge Road that runs through the
Rocky Mountain National Park in
Colorado.
The term
highway is also often used in colloquial speech where the correct term would be "State Route," or "U.S. Route." For example, California residents frequently refer to Highway 101 rather than U.S. 101.
For information on the history and local styles of highways around the world refer to
See also
External link
Category:Road transport
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pt:Auto-estrada
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