81-662: Rodovia Jornalista Francisco Aguirre Proença (SP-101) is a state highway in the State of São Paulo which connects the cities of Campinas , Hortolândia , Monte Mor , Elias Fausto and Capivari . Its first 25 kilometers are double-laned, the rest is still single-laned. The road has a high traffic because along its way there are several large companies in the services and industry sectors, such as EMS Sigma Farma , Dow Chemical , Bosch , IBM and others. It's also known as Rodovia Campinas-Monte Mor . This article about transport in Brazil
162-407: A divided highway ( AmE ) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are designed to higher standards with controlled access are generally classed as motorways , freeways, etc., rather than dual carriageways. A road without a central reservation is known as
243-428: A single carriageway regardless of how many lanes there are. Dual carriageways have improved road traffic safety over the years and over single carriageways and typically have higher speed limits as a result. In some places, express lanes and local or collector lanes are used within a local-express-lane system to provide more capacity and to smooth out traffic flows for longer-distance travel. A very early (perhaps
324-646: A "highway" as only a way open for use by motor vehicles, but the California Supreme Court has held that "the definition of 'highway' in the Vehicle Code is used for special purposes of that act" and that canals of the Los Angeles neighborhood of Venice are "highways" that are entitled to be maintained with state highway funds. Large scale highway systems developed in the 20th century as automobile usage increased. The first United States limited-access road
405-414: A broken line indicating passing zones and a solid line indicating no passing zones and solid white baseline shoulder stripes. On undivided roads with more than one lane in each direction, the center is normally marked with a double solid line. The double solid stripe denotes that it is illegal to pass on the other side of the center line. Multilane one-way carriageways use broken white lines between lanes;
486-473: A built up area is indicated by the presence of street lights; on lit dual carriageways that are not considered to be in a built-up area, the speed limit will be clarified with intermittent signs. Although in Ireland the term dual carriageway technically applies to any road with physically separated lanes, it is usually used only to refer to those route sections that do not have a motorway designation. Most often it
567-567: A central median, usually fitted with guardrails. The most heavily used expressways in Croatia is the D10 road , connecting capital Zagreb to Vrbovec and Križevci . In the United States, this type of road may be called a divided highway, boulevard, parkway, expressway, freeway, or interstate, and has a grassy median or Jersey barrier separating the traffic directions. With few exceptions, all roads in
648-802: A five-year period." A 2021 study found that areas that obtained access to a new highway experienced a substantial increase in top-income taxpayers and a decline in low-income taxpayers. Highways also contributed to job and residential urban sprawl. Highways are extended linear sources of pollution . Roadway noise increases with operating speed so major highways generate more noise than arterial streets. Therefore, considerable noise health effects are expected from highway systems. Noise mitigation strategies exist to reduce sound levels at nearby sensitive receptors . The idea that highway design could be influenced by acoustical engineering considerations first arose about 1973. Air quality issues: Highways may contribute fewer emissions than arterials carrying
729-473: A freeway from the 1950s to 1970s. Opened to traffic in 1940, the 160-mile-long (260 km) Pennsylvania Turnpike was the first rural dual carriageway built in the United States. By 1955 several states had built dual carriageway freeways and turnpikes and in 1957 the Interstate Highway System began. Completed in 1994, the major highway system links all the major cities of the United States. In
810-403: A highway available to vehicles is also available to foot or horse traffic, a highway available to horse traffic is available to cyclists and pedestrians; but there are exceptional cases in which a highway is only available to vehicles, or is subdivided into dedicated parallel sections for different users. A highway can share ground with a private right of way for which full use is not available to
891-438: A highway. Recent examples include toll bridges and tunnels which have the definition of highway imposed upon them (in a legal order applying only to the individual structure) to allow application of most traffic laws to those using them but without causing all of the general obligations or rights of use otherwise applicable to a highway. Limited access highways for vehicles, with their own traffic rules, are called "motorways" in
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#1733093319838972-467: A lack of funding elsewhere, partial controlled-access "expressways" and limited-mobility divided arterial roads are more common in the western provinces where there are no specially numbered systems of freeways. On some portions of Ontario 's 400-series highway network, the median may be either steel guardrail or an Ontario tall-wall barrier rather than an unpaved strip, particularly in urban areas. Some partial limited-access divided highways such as
1053-498: A median barrier preventing left turns (motorists have to use a "turnabout" overpass to access exits on the opposing direction). Speed limits in Canada are usually 80 to 90 km/h on signalized divided highways and 100 to 120 km/h on freeways. In Australia, dual carriageways are referred to in some regions as divided roads, though there is no official terminology. Each state's road agency has its own definition of what constitutes
1134-490: A narrow strip of trees down the middle. In 1907 the Long Island Motor Parkway opened, and roughly 20% of it featured a semi-dual-carriageway design. The New York City Belt Parkway system, which was built between 1907 and 1934, also pioneered the same design. However the majority of it featured concrete or brick railings as lane dividers instead of grass medians. In the year of 1924 the first Italian autostrada
1215-593: A new standard was set to designate certain high-quality routes formally as "Expressways". Many roads such as the A1 , the A14 , the A19 and the A42 are built to a high quality, with grade-separated junctions, full barriers at roadside and central reservations and, in some cases, three lanes of traffic. They may still fall short of motorway standard in terms of hard shoulders, the height of overpasses or
1296-560: A number of similarly worded definitions such as "a way over which all members of the public have the right to pass and repass without hindrance" usually accompanied by "at all times"; ownership of the ground is for most purposes irrelevant, thus the term encompasses all such ways from the widest trunk roads in public ownership to the narrowest footpath providing unlimited pedestrian access over private land. A highway might be open to all forms of lawful land traffic (e.g. vehicular, horse, pedestrian) or limited to specific modes of traffic; usually
1377-494: A precedent for future highways. Although it, like the first autostrada , did not feature a dual-carriageway design, it inspired the mass construction of future high-speed roadways. During the 1930s, Germany, Italy, and the Soviet Union began construction of a network of dual carriageway expressways. By 1942, Germany had over 3,200 km (2,000 mi) of dual carriageway roads, Italy had nearly 1,300 km (810 mi), and
1458-409: A public highway is also known as " The King's Highway ". The core definition of a highway is modified in various legislation for a number of purposes but only for the specific matters dealt with in each such piece of legislation. This is typically in the case of bridges, tunnels and other structures whose ownership, mode of use or availability would otherwise exclude them from the general definition of
1539-565: A public road is not included in the relevant statistics. The United States has the world's largest network of highways, including both the Interstate Highway System and the United States Numbered Highway System . At least one of these networks is present in every state and they interconnect most major cities. It is also the world's most expensive mega-project, as the entirety of the Interstate Highway System
1620-416: A result of their misjudging the speed of approaching traffic on the other carriageway when doing so. The majority of dual carriageway roads now have barriers. Some are heavy concrete obstructions which can bounce a vehicle back into the path of other traffic; others are made from steel ropes mounted on moderately weak posts, where the rope cuts into the vehicle body to slow the vehicle while keeping it against
1701-510: Is autovía (literally autoway ). All of them are government-owned and not tolled. First-generation autovías, built in the 1980s and early 1990s, were just duplications in parallel of existing roads, as shown in the photograph. Modern autovías are two carriageways built from scratch, leaving the old road they replace as an alternative route for pedestrians, bicycles and other non-motorized vehicles. Private properties may have direct access to an autovía, as well as bus stops and gas stations in
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#17330933198381782-399: Is national roads (roads with a route number prefix of N ; e.g. N8 ) that are built as or upgraded to dual carriageway. A number of non-national roads (for example, regional roads ) are dual carriageway, for example in urban areas near or in cities, or where the road was part of a national route. Dual carriageways of this class differ from motorways in a number of ways. The hard shoulder
1863-437: Is a stub . You can help Misplaced Pages by expanding it . Highway A highway is any public or private road or other public way on land. It includes not just major roads, but also other public roads and rights of way . In the United States, it is also used as an equivalent term to controlled-access highway , or a translation for motorway , Autobahn , autostrada , autoroute , etc. According to Merriam-Webster ,
1944-401: Is a significant negative externality which is difficult to evaluate quantitatively, making it difficult (but not impossible) to include in transport economics-based research and analysis. Congestion is considered a negative externality by economists. A 2016 study found that for the United States, "a 10% increase in a region's stock of highways causes a 1.7% increase in regional patenting over
2025-413: Is being popular in many cities to combat most of the social problems caused from highways. In transport, demand can be measured in numbers of journeys made or in total distance travelled across all journeys (e.g. passenger-kilometres for public transport or vehicle-kilometres of travel (VKT) for private transport ). Supply is considered to be a measure of capacity. The price of the good (travel)
2106-450: Is demarcated with a dashed yellow line (as opposed to an unbroken yellow line on motorways). The standard speed limit of 100 km/h (62 mph) for national routes usually applies (by default the limit is 80 km/h (50 mph) for non-national roads, even if dual carriageway). Local authorities have the power to apply a limit of up to 120 km/h (75 mph) as used on most motorways (The High Quality Dual Carriageway section of
2187-504: Is measured using the generalised cost of travel, which includes both money and time expenditure. The effect of increases in supply (capacity) are of particular interest in transport economics (see induced demand ), as the potential environmental consequences are significant (see externalities below). In addition to providing benefits to their users, transport networks impose both positive and negative externalities on non-users. The consideration of these externalities—particularly
2268-759: Is the longest national highway in the world at over 14,500 kilometres (9,000 mi) and runs almost the entire way around the continent. China has the world's largest network of highways, followed closely by the United States. Some highways, like the Pan-American Highway or the European routes , span multiple countries. Some major highway routes include ferry services, such as US Route 10 , which crosses Lake Michigan . Traditionally highways were used by people on foot or on horses . Later they also accommodated carriages , bicycles and eventually motor cars , facilitated by advancements in road construction . In
2349-561: The Autobahn network programme but still have the blue signs (e. g. the B 59 , formerly A 540 near Grevenbroich ); and on the other hand some former non- Autobahn (yellow) motorways have been added to Autobahn budgeting but the signs have not been changed either (e. g. parts of the B 6 , now A 36 in the north of the Harz highland area in Saxony-Anhalt). Motorways that are neither in
2430-493: The Hanlon Parkway and Black Creek Drive have stop-controlled at-grade intersections and private entrances, but have sufficient right-of-way to convert them to full freeways with interchanges if traffic warrants. There are also RIRO expressways , such as Highway 11 and a portion of Highway 35 , which are not full freeways since they allow access to existing properties, but traffic speeds are faster than regular roads due to
2511-676: The Mediterranean world . This influx of road activity necessitated the construction of a dual thoroughfare as the road approached the Porta Portese , the corresponding gate in the Aurelian Walls of Rome for the Via Portuensis . One claim for the first divided highway in the United States was Savery Avenue in Carver, Massachusetts , first built in 1860, where the two roadways were separated by
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2592-686: The N1 between the end of the M1 and the border with Northern Ireland and the N25/N22 Ballincollig Bypass in Cork are the only route sections with such special limits). Traffic lights and junctions are permitted at grade on dual carriageways. For older sections of dual carriageway, this has resulted in fewer flyover junctions. Newer dual carriageway sections are usually near motorway standard, with grade-separated junctions, but may not be designated as motorways due to
2673-674: The autobahn network nor in the Bundesstraße network are given black on white signs, following the same sign code as high-speed dual carriageways—this is mostly seen on urban trunk roads. Italian Highway Code ( Codice della strada ) divides dual carriageways into three different classifications: Italian type-B and type-C roads do not follow a specific numbering criterion. They may be numbered as Strade Statali (SS; "state roads"), Strade Regionali (SR; "regional roads"), Strade Provinciali (SP; "provincial roads") or Strade Comunali (SC; "municipal roads"). The Spanish word for dual carriageway
2754-419: The 1920s and 1930s, many nations began investing heavily in highway systems in an effort to spur commerce and bolster national defence. Major highways that connect cities in populous developed and developing countries usually incorporate features intended to enhance the road's capacity, efficiency, and safety to various degrees. Such features include a reduction in the number of locations for user access ,
2835-466: The Local Government Act 2001. Accordingly, hard shoulders are included wherever feasible to provide for the resulting pedestrian and cyclist traffic, and are present on much of the national route network. These hard shoulders may also be used as running lanes by motorised traffic under certain conditions. Until 2005, many motorways and dual carriageways in Ireland did not have crash barriers in
2916-537: The Soviet Union had 400 km (250 mi). What may have been the world's first long-distance intercity dual carriageway/freeway was the Queen Elizabeth Way in Southern Ontario in Canada, initially linking the large cities of Toronto and Hamilton together by 1939, with construction on this stretch of the present-day Queen Elizabeth Way beginning in 1936 as "Middle Road". It was gradually upgraded to
2997-427: The U.S., many of these effects are from racist planning practices from before the advent of civil rights . This would result in the vast majority of displacement and social effects mostly going to people like African Americans. In recent times, the use of freeway removal or the public policy of urban planning to demolish freeways and create mixed-use urban areas, parks, residential, commercial, or other land uses
3078-656: The UK, although the term "dual carriageway" applies to any road with physically separated lanes, it is frequently used as a descriptive term for major routes built in this style. Such major dual carriageways usually have two lanes of traffic in each direction, with the lane nearest the centre being reserved for overtaking. Occasionally dual carriageways have only one lane in each direction, or more than two lanes each way (sometimes to permit easier overtaking of slower uphill traffic). Different speed limits apply on dual carriageway sections from those that apply on single carriageway sections of
3159-609: The UK. Scots law is similar to English law with regard to highways but with differing terminology and legislation. What is defined in England as a highway will often in Scotland be what is defined by s.151 Roads (Scotland) Act 1984 (but only "in this act" although other legislation could imitate) simply as a road , that is: The word highway is itself no longer a statutory expression in Scots law but remains in common law. In American law,
3240-428: The barrier until it has stopped. Often on urban dual carriageways where the road has been converted from a four-lane single carriageway the central reservation will not be substantial: often just a small steel divider to save space. Turning right (that is, across the line of traffic heading in the opposite direction) is usually permitted only at specific locations. Often the driver will be required to turn left (away from
3321-455: The basis of their structure these roads have, comparable to the German autobahn , the legal foundation that no default speed limit exists (design speed 130 km/h), although the standard advisory speed limit ( German : Richtgeschwindigkeit ) still exists. Nevertheless, expressways are often given speed limit signs. Exit signs. At the moment some (blue) motorways have been taken out of
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3402-682: The central reservation, the policy being to use a wider median instead. Crash barriers are now mandatory for such routes, and wire cabling or full crash barriers (depending on whether or not the route is a motorway, and median width) have been fitted to existing routes. Between 2000 and 2010, three major types of dual carriageway were built on national road schemes in Ireland: In Germany the term Autobahnähnliche Straße (motorway-like road) refers to roads that are similar to German autobahn in grade-separation and signage. Most of them are designated as Kraftfahrstraßen (expressways), which means that
3483-435: The dual carriageway) in order to loop around to an access road that permits crossing the major road. Roundabouts on dual carriageways are relatively common, especially in cities or where the cost of a grade-separated junction would be prohibitive. Where space is even more limited, intersections may be controlled by traffic lights. Smaller residential roads adjoining urban dual carriageways may be blocked off at one end to limit
3564-597: The entire length featured a dual-carriageway design. In the early 1930s, it was extended southward all the way to Naples and northward to Florence. Most of the original routing was destroyed by the Allies in World War II. By 1930 several US and European cities had built dual-carriageway highways, mostly to control traffic jams and/or to provide bypass routes for traffic. In 1932 the first German autobahn opened between Cologne and Bonn. It ran 21 km (13 mi) and became
3645-466: The federal government's Manual on Uniform Traffic Control Devices ). Italy was the first country in the world to build controlled-access highways reserved for fast traffic and for motor vehicles only. The Autostrada dei Laghi ("Lakes Highway"), the first built in the world, connecting Milan to Lake Como and Lake Maggiore , and now parts of the A8 and A9 highways, was devised by Piero Puricelli and
3726-663: The federally funded Interstate Highway System are fully controlled access divided highways known as freeways . A broader definition, expressways , includes both freeways and partial limited-access divided highways, and "expressway" is often used specifically to refer to the latter. United States Numbered Highways , state highways and other locally maintained highways may also be divided. Speed limits on rural divided highways range from 65 to 75 miles per hour (105 to 121 km/h), with some portions as high as 80 miles per hour (130 km/h). One privately run toll road in Texas, SH 130, has
3807-594: The first) example of a dual carriageway was the Via Portuensis , built in the first century by the Roman emperor Claudius between Rome and its harbor of Portus . The route between the city and the port experienced a great deal of commercial and pedestrian traffic, as Portus served as the primary avenue for the grain shipments of the Cura Annonae into Rome, as well as transporting the majority of goods imported from across
3888-431: The general public: for example farm roads which the owner may use for any purpose but for which the general public only has a right of use on foot or horseback. The status of highway on most older roads has been gained by established public use, while newer roads are typically dedicated as highways from the time they are adopted (taken into the care and control of a council or other public authority). In England and Wales,
3969-668: The generic speed limit is 120 km/h (75 mph), minimum speed is 60 km/h (37 mph), driving backwards is strictly prohibited, and they shall not have at-grade junctions. Dual carriageways or expressways in Croatia (Croatian: brza cesta ) are non- tolled roads with 2 or more lanes in each direction, but without emergency lanes . The main motorways in Croatia are also dual carriageways, but they have emergency lanes and tolls. Many bypasses and beltways of smaller cities in Croatia have been recently constructed or planned as dual carriageways. All dual carriageways in Croatia house
4050-533: The hard shoulders. A controlled-access highway (motorway) in Spain is referred to as autopista (literally autotrack ). They may be operated by private companies and be tolled. The two major accesses to Spain from France, AP-7 into Catalonia and AP-8 into the Basque Country , are autopistas. In comparison, the prime road between Spain and Portugal is the photographed autovía A-5 . In both autopistas and autovías,
4131-478: The highest speed limit in the United States at 85 miles per hour (137 km/h). Urban divided highways which are at grade and typically have much lower speed limits are sometimes called boulevards . In keeping with the U.S. Department of Transportation 's Manual on Uniform Traffic Control Devices (MUTCD), since the early 1970s all divided highways are striped by color to show the direction of traffic flow. Two-way undivided roads have an amber center line, with
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#17330933198384212-663: The introduction the Irish Planning system in 1964. Today Irish planning policy prohibits such development on National Primary or National Secondary roads where the speed limit exceeds 60 km/h (37 mph). This policy results from concerns expressed by the National Roads Authority. A local authority is not obliged to implement this policy and can disregard this policy at its own discretion. This would usually only occur in exceptional circumstances or where planners are overruled by elected councillors using section 140 of
4293-704: The lanes of an existing road (for example US Highway 33 between Elkhart and Goshen in northern Indiana). Like other countries, there are several types of divided highways; fully controlled-access divided routes with interchanges (commonly known as "freeways" in the United States, Australia, and regionally within Canada), expressways that often include a mix of interchanges and traffic signals, and divided arterial roads that are almost entirely stop-controlled. Unlike some other countries, divided dual carriageways in Canada are seldom equipped with traffic circles , roundabouts, or rotaries as alternatives to stoplights. In Canada,
4374-535: The median-side baseline is solid amber, and the right sideline is solid white. Frequently in the U.S. the two carriageways are separated by some distance (wide medians with small forests or even hills in them), but drivers can always tell whether the roadway is two-way or one-way—and, if one-way, the direction in which the traffic flows—by looking at the striping coloration. For an example, see inset showing U.S. Route 52 near Lafayette, Indiana . Some divided highways have been turned into undivided highways by widening
4455-678: The need to preserve access to adjoining property or to the absence of a non-motorway alternative route. Also, dual carriageways that are not motorway classified do not need to be equipped with emergency phones. Motorway restrictions only apply to motorway sections, rather than all dual carriageway sections of national roads (these are signposted with the N prefix on the route number, rather than M ). Some national secondary roads , and regional roads in particular often have houses, schools and other developments fronting on to them. Less important national primary roads , and older sections not yet upgraded may also feature such developments built before
4536-463: The negative ones—is a part of transport economics. Positive externalities of transport networks may include the ability to provide emergency services , increases in land value and agglomeration benefits . Negative externalities are wide-ranging and may include local air pollution , noise pollution , light pollution , safety hazards , community severance and congestion . The contribution of transport systems to potentially hazardous climate change
4617-508: The network. In South Korea , in February 1995 a bus lane (essentially an HOV -9) was established between the northern terminus and Sintanjin for important holidays and on 1 July 2008 bus lane enforcement between Seoul and Osan (Sintanjin on weekends) became daily between 6 a.m. and 10 p.m. On 1 October this was adjusted to 7 a.m. to 9 p.m. weekdays, and 9 a.m. to 9 p.m. weekends. In Hong Kong , some highways are set up with bus lanes to solve
4698-432: The number of intersections. They can also reduce the use of public transport , indirectly leading to greater pollution. High-occupancy vehicle lanes are being added to some newer/reconstructed highways in the United States and other countries around the world to encourage carpooling and mass transit. These lanes help reduce the number of cars on the highway and thus reduces pollution and traffic congestion by promoting
4779-467: The number of junctions on the dual carriageway; often other roads will pass over or under the dual carriageway without an intersection. A dual carriageway with grade-separated junctions and which meets other requirements may be upgraded to motorway standard, denoted by an (M) added after the road number (e.g. " A1(M) " or " A38(M) "). Unlike in Ireland, there was no official terminology for 'high-quality dual carriageways' until April 2015, when in England
4860-659: The planning stage, this extra traffic may lead to the new road becoming congested sooner than would otherwise be anticipated by considering increases in vehicle ownership. More roads allow drivers to use their cars when otherwise alternatives may have been sought, or the journey may not have been made, which can mean that a new road brings only short-term mitigation of traffic congestion. Where highways are created through existing communities, there can be reduced community cohesion and more difficult local access. Consequently, property values have decreased in many cutoff neighborhoods, leading to decreased housing quality over time. Mostly in
4941-453: The quality of intersecting junctions. The national speed limit applies on dual carriageways (unless it is in a ' built-up area ', or a lower limit is posted), which is as follows: A dual carriageway in a built up area will have a statutory speed limit of 30 mph (48 km/h) unless otherwise sign-posted. It is common for such urban dual carriageways to have an increased speed limit of 40 mph (64 km/h). A road deemed to be in
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#17330933198385022-503: The roads allow higher speed traffic than is common on other roads. This in turn requires them to have dual carriageways in most cases. An exception is the 2+1 road system in some rural areas; these roads are also referred to as expressways. Autobahnähnliche Straßen mostly are colloquially referred to as gelbe Autobahn (yellow motorway) because they have the same technical standard as the Autobahn but have black on yellow signs instead of
5103-426: The roads around the world each year and was the leading cause of death among children 10–19 years of age. The report also noted that the problem was most severe in developing countries and that simple prevention measures could halve the number of deaths. For reasons of clear data collection, only harm involving a road vehicle is included. A person tripping with fatal consequences or dying for some unrelated reason on
5184-473: The roadway. In British English , "highway" is primarily a legal term. Everyday use normally implies roads, while the legal use covers any route or path with a public right of access, including footpaths etc. The term has led to several related derived terms, including highway system , highway code , highway patrol and highwayman . Major highways are often named and numbered by the governments that typically develop and maintain them. Australia's Highway 1
5265-523: The safety performance of roads and streets, and methods used to reduce the harm (deaths, injuries, and property damage) on the highway system from traffic collisions . It includes the design, construction and regulation of the roads , the vehicles used on them and the training of drivers and other road-users. A report published by the World Health Organization in 2004 estimated that some 1.2 million people were killed and 50 million injured on
5346-403: The same class of road, except in cities and built-up areas where the dual carriageway is more of a safety measure. When first constructed, many dual carriageways—including the first motorways—had no crash- or other barriers in the central reservation. In the event of congestion, or if a driver missed their exit, some drivers made U-turns onto the opposite carriageway; many accidents were caused as
5427-634: The same vehicle volumes. This is because high, constant-speed operation creates an emissions reduction compared to vehicular flows with stops and starts. However, concentrations of air pollutants near highways may be higher due to increased traffic volumes. Therefore, the risk of exposure to elevated levels of air pollutants from a highway may be considerable, and further magnified when highways have traffic congestion . New highways can also cause habitat fragmentation , encourage urban sprawl and allow human intrusion into previously untouched areas, as well as (counterintuitively) increasing congestion, by increasing
5508-646: The term "divided highway" is used for this type of road, and the segment between the roadways is referred to as a "median". There may be gaps in the median strip of a partially controlled-access road to allow turning and crossing. More informally, a divided highway may be referred to as "twinned". This stems from the practice of "twinning" an existing two-lane highway and converting it into a divided highway. Such highways in southern Ontario, southern Quebec, and parts of Atlantic Canada usually feature full controlled-access with interchanges where robust federal and provincial funding has made such freeways possible. However, due to
5589-627: The traffic congestion. Traffic congestion was a principal problem in major roads and highways in the Philippines , especially in Metro Manila and other major cities. The government decided to set up some bus lanes in Metro Manila like in the Epifanio delos Santos Avenue . The following is a list of highways by country in alphabetical order. Dual carriageway A dual carriageway ( BrE ) or
5670-528: The use of dual carriageways with two or more lanes on each carriageway, and grade-separated junctions with other roads and modes of transport. These features are typically present on highways built as motorways ( freeways ). The general legal definition deals with right of use, not the form of construction; this is distinct from e.g. the popular use of the word in the US. A highway is defined in English common law by
5751-445: The use of carpooling in order to be able to use these lanes. However, they tend to require dedicated lanes on a highway, which makes them difficult to construct in dense urban areas where they are the most effective. To address habitat fragmentation, wildlife crossings have become increasingly popular in many countries. Wildlife crossings allow animals to safely cross human-made barriers like highways. Road traffic safety describes
5832-455: The use of the term predates the 12th century. According to Etymonline , "high" is in the sense of "main". In North American and Australian English , major roads such as controlled-access highways or arterial roads are often state highways (Canada: provincial highways ). Other roads may be designated " county highways " in the US and Ontario . These classifications refer to the level of government (state, provincial, county) that maintains
5913-831: The usual principle that a road available to vehicular traffic was also available to horse or pedestrian traffic as is usually the only practical change when non-motorways are reclassified as special roads . The first section of motorway in the UK opened in 1958 (part of the M6 motorway) and then in 1959 the first section of the M1 motorway . Often reducing travel times relative to city or town streets, highways with limited access and grade separation can create increased opportunities for people to travel for business, trade or pleasure and also provide trade routes for goods. Highways can reduce commute and other travel time but additional road capacity can also release latent traffic demand . If not accurately predicted at
5994-414: The white on blue signs used on the Autobahn motorway network. These are generally high-speed arterial roads in larger cities or important roads within a federal state that do not connect to major cities, so that they do not fall under the federal budget for the Autobahn network. The federal road Bundesstraße 27 is an example where about half of its length is upgraded to a high speed motorway standard. On
6075-456: The word "highway" is sometimes used to denote any public way used for travel, whether a "road, street, and parkway"; however, in practical and useful meaning, a "highway" is a major and significant, well-constructed road that is capable of carrying reasonably heavy to extremely heavy traffic. Highways generally have a route number designated by the state and federal departments of transportation. California Vehicle Code, Sections 360, 590, define
6156-488: Was constructed on Long Island, New York, and known as the Long Island Motor Parkway or the Vanderbilt Motor Parkway. It was completed in 1911. It included many modern features, including banked turns , guard rails and reinforced concrete tarmac . Traffic could turn left between the parkway and connectors, crossing oncoming traffic, so it was not a controlled-access highway (or "freeway" as later defined by
6237-483: Was estimated to cost $ 27 billion in 1955 (equivalent to $ 240 billion in 2023 ). China's highway network is the second most extensive in the world, with a total length of about 3,573,000 kilometres (2,220,000 mi). China's expressway network is the longest Expressway system in the world, and it is quickly expanding, stretching some 85,000 kilometres (53,000 mi) at the end of 2011. In 2008 alone, 6,433 kilometres (3,997 mi) expressways were added to
6318-547: Was inaugurated in 1924. This highway, called autostrada , contained only one lane in each direction and no interchanges. The Southern State Parkway opened in 1927, while the Long Island Motor Parkway was closed in 1937 and replaced by the Northern State Parkway (opened 1931) and the contiguous Grand Central Parkway (opened 1936). In Germany, construction of the Bonn-Cologne Autobahn began in 1929 and
6399-605: Was opened in 1932 by Konrad Adenauer , then the mayor of Cologne . Soon the Autobahn was the first limited-access, high-speed road network in the world, with the first section from Frankfurt am Main to Darmstadt opening in 1935. In the US, the Federal Aid Highway Act of 1921 (Phipps Act) enacted a fund to create an extensive highway system. In 1922, the first blueprint for a national highway system (the Pershing Map )
6480-517: Was opened running 55 km (34 mi) from Milan to Varese . It featured a broad road bed and did not feature lane dividers except near cities and through the mountains. The London end of the Great West Road became Britain's first dual carriageway when it was opened in 1925 by King George V . In 1927 the Rome bypass was opened. It ran 92 km (57 mi) bypassing Rome to the east. Almost
6561-568: Was published. The Federal Aid Highway Act of 1956 allocated $ 25 billion for the construction of the 66,000-kilometre-long (41,000 mi) Interstate Highway System over a 20-year period. In Great Britain , the Special Roads Act 1949 provided the legislative basis for roads for restricted classes of vehicles and non-standard or no speed limits applied (later mostly termed motorways but now with speed limits not exceeding 70 mph); in terms of general road law this legislation overturned
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