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A freeway (also superhighway, expressway or motorway (Ireland, New Zealand, the United Kingdom and some Commonwealth nations) is a multi-lane highway (road) designed for high-speed travel by large numbers of vehicles, and having no traffic lights, stop signs, nor other regulations requiring vehicles to stop for cross-traffic. A typical stretch of Interstate 5 in the Central Valley of California. ...
A typical stretch of Interstate 5 in the Central Valley of California. ...
Interstate 5, or I-5, is an interstate highway along the west coast of the United States. ...
The California Central Valley The California Central Valley dominates the central portion of the state of California. ...
State nickname: The Golden State Other U.S. States Capital Sacramento Largest city Los Angeles Governor Arnold Schwarzenegger Official languages English Area 410,000 km² (3rd) - Land 404,298 km² - Water 20,047 km² (4. ...
An expressway is a divided highway, usually 4 lanes or wider in size, where direct access to adjacent properties has been eliminated. ...
A motorway (Ireland, New Zealand, the United Kingdom and some Commonwealth nations) is both a type of road and a classification. ...
The Republic of Ireland (Irish: Poblacht na hÉireann) is the official description of an independent state which covers approximately five-sixths of the island of Ireland, off the coast of north-west Europe. ...
New Zealand is an independent sovereign state in the south-western Pacific Ocean. ...
The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and member of the Commonwealth of Nations, the G8, the European Union, and NATO. Usually known simply as the United Kingdom, the UK, or (inaccurately) as Great Britain or Britain, the UK has four constituent...
Flag of the Commonwealth of Nations The Commonwealth of Nations is an association of independent sovereign states, most of which are former colonies once governed by the United Kingdom as part of the British Empire. ...
For people named Lane, please see Lane (people) The word lane has two meanings: A narrow road, usually lacking a shoulder or a median. ...
A highway is a major road within a city, or linking several cities together. ...
This page is related to transport; you may be looking for the 2002 Bollywood movie Road. ...
Vehicles are non-living means of transport. ...
Traffic lights will sometimes differ where there are several lanes of traffic. ...
Stop sign used in English-speaking countries A stop sign is a traffic sign found all over the world that informs drivers to make a brief and temporary, but complete, stop once approaching it, then proceed if the way is clear. ...
In general
Standard wrong-way sign package used on all freeway off-ramps in California (and since copied by Georgia and Virginia). Freeways have high speed limits, multiple lanes for travel in each direction, and a large separation (either through distance or high crash barriers) between the lanes travelling in opposite directions. Crossroads are bypassed by grade (height) separation using underpasses and overpasses. Freeway entrances and exits are limited in number, and are designed with special onramps and offramps, so as to ensure that vehicles do not disrupt the main flow of traffic as they enter or leave the freeway. In some countries, the exits are numbered. A speed limit is the maximum speed allowed by law by vehicles on a road. ...
An underground pedestrian tunnel between buildings at MIT. Note the utility pipes running along the ceiling. ...
Where freeways cross, engineers provide interchanges with elaborate ramp systems that allow for smooth transitions between all through routes (as funds permit). In the field of road transport, a road junction is a place where two or more roads either meet or cross. ...
The word ramp can mean one of several things: An inclined plane Wild leeks a type of road junction for a limited access major highway such as a freeway; off-ramp is an exit from the major highway to a secondary road or an access road and an on-ramp...
Because the high speeds reduce decision time, freeways usually have more traffic signs than the equivalent signs on most highways and roads; the signs are often also larger. In major cities, especially on freeways six lanes in width or wider, guide signs are mounted on overhead gantries so that drivers can see where each lane goes. A U.S. warning sign about children in the road, and a speed limit notice A U.S. warning sign indicating that drivers who do not wish to exit immediately should merge left, and a prohibitory No Stopping sign Most countries place signs, known as traffic signs or road signs...
Another consequence of the high speeds and decreased decision time is that it is nearly impossible to avoid wrong-way drivers on freeways, and the subsequent head-on collisions are often fatal. Therefore, special signage is often used to discourage drivers from going the wrong way. A Head-on Collision is one where the front end of the ship, train, plane or vehicle hit each other, as disinct from a side-collision or rear-end collision. ...
Freeways do not usually have traffic lights, but expressways may, in places where this distinction is made.
To minimize accidents, access to freeways is usually limited to vehicles capable of consistently maintaining a high speed, like automobiles, trucks, motorcycles, vans, and buses. Pedestrians, bicyclists, slow-moving vehicles, horses, horse-drawn vehicles, and anything else that might obstruct fast-moving vehicles are all prohibited. A car accident in Yate, near Bristol, England, in July 2004. ...
A small variety of cars, the most popular kind of automobile. ...
The driver of a car transporter truck prepares to offload Skoda Octavia cars in Cardiff, Wales For further uses of the word truck, see Truck (disambiguation). ...
A motorcycle (or motorbike) is a two-wheeled vehicle powered by an engine. ...
Van can mean: van (road vehicle) van (rail vehicle), also called a boxcar Turkish Van cat shortened form of vanguard the VAN method for earthquake prediction Van is also the name of several places: In Turkey: Van, town Van, province Lake Van In the United Kingdom: Van, Caerphilly In the...
The Bus, established by Mayor Frank Fasi, is Honolulus only public transit system. ...
A pedestrian at the intersection of Alinga Street and Northbourne Avenue, Canberra, Australia A pedestrian is a person travelling on foot, whether walking or running. ...
A cyclist is a person who engages in cycling whether as a sport or rides a bicycle for recreation or transportation. ...
Binomial name Equus caballus The Horse (Equus caballus) is a large ungulate mammal, one of the seven modern species of the genus Equus. ...
In most parts of the world, there are public rest areas on freeways and expressways as well as other types of highways. In some U.S. states, public rest areas are located only on freeways or expressways (because their high traffic is sufficient to justify the area's maintenance cost). In the United States, Canada and parts of Europe, a rest area, rest stop or service station is a public facility, located adjacent to a highway or interstate, at which drivers and passengers can eat and drink, take a stroll, let their children play in grassy park-like areas, walk...
Nomenclature
Stack interchanges often feature soaring ramps with stunning views of nearby scenery. The lovely Glendale Freeway (Highway 2), as photographed on July 7, 2004 from the transition ramp that connects the eastbound Ventura Freeway (Highway 134) to the northbound Glendale Freeway. ...
The lovely Glendale Freeway (Highway 2), as photographed on July 7, 2004 from the transition ramp that connects the eastbound Ventura Freeway (Highway 134) to the northbound Glendale Freeway. ...
Worldwide Freeway is the term used in most of the United States, and parts of Australia, notably Melbourne and Perth; the United Kingdom, the rest of Australia and other Commonwealth countries prefer motorway, most of Canada uses expressway, Mexico and other spanish-speaking countries use the term Autopista, the German-speaking world uses Autobahn the Dutch-speaking world uses autosnelweg, and the French-speaking world uses autoroute. Italy and Poland use autostrada, and China and Japan uses the term expressway, although they once used freeway. The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ...
Australia, officially the Commonwealth of Australia, is the sixth-largest country in the world, the only country to occupy an entire continent, and the largest in the region of Australasia/Oceania. ...
Melbourne - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...
Perth is the name of several towns and cities: Perth, Scotland is the original Perth, after which the others are named, and the administrative town of the region of Perth and Kinross in Scotland. ...
A motorway (Ireland, New Zealand, the United Kingdom and some Commonwealth nations) is both a type of road and a classification. ...
Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ...
An expressway is a divided highway, usually 4 lanes or wider in size, where direct access to adjacent properties has been eliminated. ...
The United Mexican States or Mexico (Spanish: Estados Unidos Mexicanos or México; regarding the use of the variant spelling Méjico, see section The name below) is a country located in North America, bordered to the north by the United States of America, to the southeast by Guatemala and Belize, to...
German (called Deutsch in German; in German the term germanisch is equivalent to English Germanic), is a member of the western group of Germanic languages and is one of the worlds major languages. ...
Autobahn (pronounced in IPA, plural Autobahnen) is the German word for a major high-speed road usually linking one or more cities and towns, similar to motorway or freeway in English-speaking countries. ...
Note: This page contains IPA phonetic symbols in Unicode. ...
French (français, langue française) is one of the most important Romance languages, outnumbered in speakers only by Spanish and Portuguese. ...
Autoroute is a French word meaning, literally, a motor road, and corresponding to the words motorway or freeway in English. ...
The Italian Republic or Italy (Italian: Repubblica Italiana or Italia) is a country in southern Europe. ...
The Republic of Poland, a democratic country with a population of 38,626,349 and area of 312,685 km², is located in Central Europe, between Germany to the west, the Czech Republic and Slovakia to the south, Ukraine and Belarus to the east, and the Baltic Sea, Lithuania and...
The Autostrada is the Italian National Highway system, similar to the US Interstate Highway System and the French autoroute. ...
The Great Wall of China, stretching over 6,700 km, was erected beginning in the 3rd century BC to guard the north from raids by men on horses. ...
Official language Japanese Capital Tokyo Largest City Tokyo Emperor Akihito Prime Minister Junichiro Koizumi Area - Total - % water Ranked 60th 377,835 km² 0. ...
An expressway is a divided highway, usually 4 lanes or wider in size, where direct access to adjacent properties has been eliminated. ...
The U.S. distinction between expressways and freeways The United States definition, as accepted by civil engineers, is that an expressway is any highway to which adjoining property owners do not have a legal right of access. A freeway is an expressway which is free-flowing; that is to say, there are no traffic conflicts on the main line of the highway which must be mediated by a traffic signal, stop signs, or related traffic controls. Another way to look at it is that an expressway is limited-access, and a freeway is controlled-access, but this distinction is not universally accepted. Many non-engineers misapprehend the "free" in "freeway" to mean that such a highway must be free of charge to use. In some states, like California, the vast majority of freeways are toll-free (except where they cross an occasional toll bridge), while other states like Illinois and Florida have toll plazas at every exit on certain expressways. The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ...
The term civil engineer refers to an individual who practices civil engineering. ...
In the U.S., the terms expressway and freeway are legally defined by federal regulation and under the laws of most states according to civil engineering usage described above. However, the distinction between these two terms is not universal, and in several states which built freeways very early on (including Connecticut, Illinois, Massachusetts, New Jersey, New York, and Pennsylvania), the terms expressway and freeway have the same meaning, and usually expressway or just highway, an older usage, is preferred. (In New Jersey and Pennsylvania, newer roads are often officially styled freeways, where older roads retain the title "expressway".) In the rest of the country, freeway is the usual term; however, the distinction between freeways and expressways is not always as clear or well-understood as it is in California, which has many of both kinds of highway. Florida is an exception to these conventions, and the terms "expressway" and "freeway" have two separate and distinct meanings. In Florida, an "expressway" is defined as a limited-access toll road, while a "freeway" is any other limited- or controlled-access road which costs no money to travel on. State nickname: The Constitution State Other U.S. States Capital Hartford Largest city Bridgeport Governor M. Jodi Rell Official languages English Area 14,371 km² (48th) - Land 12,559 km² - Water 1,809 km² (12. ...
State nickname: The Prairie State Other U.S. States Capital Springfield Largest city Chicago Governor Rod Blagojevich Official languages English Area 149,998 km² (25th) - Land 143,968 km² - Water 6,030 km² (4. ...
State nickname: Bay State Other U.S. States Capital Boston Largest city Boston Governor Mitt Romney Official languages English Area 27,360 km² (44th) - Land 20,317 km² - Water 7,043 km² (25. ...
State nickname: The Garden State Other U.S. States Capital Trenton Largest city Newark Governor Richard Codey (acting) Official languages None defined Area 22,608 km² (47th) - Land 19,231 km² - Water 3,378 km² (14. ...
State nickname: Empire State Other U.S. States Capital Albany Largest city New York Governor George Pataki Official languages None Area 141,205 km² (27th) - Land 122,409 km² - Water 18,795 km² (13. ...
State nickname: The Keystone State Other U.S. States Capital Harrisburg Largest city Philadelphia Governor Ed Rendell Official languages None Area 119,283 km² (33rd) - Land 116,074 km² - Water 3,208 km² (2. ...
State nickname: The Golden State Other U.S. States Capital Sacramento Largest city Los Angeles Governor Arnold Schwarzenegger Official languages English Area 410,000 km² (3rd) - Land 404,298 km² - Water 20,047 km² (4. ...
A toll road, turnpike or tollpike is a road on which a toll authority collects a fee for use. ...
Construction issues Freeways have been constructed both between urban centres and within them, making common the style of sprawling suburban development found near most modern cities. As well as reducing travel times, the ease of driving on them reduces accident rates, though the speeds involved also tend to increase the severity and death rate of the collisions (or crashes) that do still happen. 405 Freeway in Irvine, California Copyright notice: The Pics4Learning collection is intended to provide copyright friendly images for use by students and teachers in an educational setting. ...
405 Freeway in Irvine, California Copyright notice: The Pics4Learning collection is intended to provide copyright friendly images for use by students and teachers in an educational setting. ...
The San Diego Freeway, close to the interchange with the Ventura Freeway, on one of the rare days when it is not congested. ...
City tree Camphor City flower Lily of the Nile City insect Western Swallowtail Butterfly Mayor Beth Krom County Orange County Area - Total - Sphere of Influence 55. ...
In the field of road transport, a road junction is a place where two or more roads either meet or cross. ...
Illustration of the backyards of a surburban neighbourhood Suburban redirects here. ...
Physical collision Dynamics Deflection happens when an object hits a plane surface In physics, collision means the action of bodies striking or coming together (touching). ...
A crash or Crash may mean: A car or other vehicular crash is a collision with something, including another vehicle. ...
Frontage roads Because abutters do not have the right of access that they would have for an ordinary public road, the authority undertaking construction of a freeway is frequently required to provide alternate means of access to those landowners. This is frequently accomplished, in areas lacking a dense surface street network, by construction of two uncontrolled roads parallel to and on either side of the freeway, known as frontage roads. These often are designed with one-way traffic flow, but not always. In the USA, a frontage road is a non-limited access road running parallel to a freeway and feeding it at appropriate points of access. ...
In Texas, where this pattern is perhaps at its zenith, such roads are frequently constructed in anticipation of a future freeway corridor, as many as ten years in advance, in order to influence development patterns on the adjoining land. Frontage roads are also often constructed in more densely-developed areas as a means to provide convenient direct access to and from the parallel freeway while minimizing the need for interchanges at every major cross street. However, some traffic studies have indicated that this particular type of access and the development that ensues generally causes significant traffic congestion and disrupts flows along major freeways. These studies prompted concern for TxDOT, which formally adopted a major shift in frontage road policy (http://www.abilenetx.com/comp/www.abilenecompplan.com/abilene_comp/documentframeset3fcd.html?docname=http://www.abilenecompplan.com:80/abilene_comp/docs/FrontageRoad.pdf) (2002) by stating that no new frontage roads will be built along any proposed limited-access freeways, thus ending a long-standing pattern of freeway-induced development in Texas. Access issues will continue to be assessed on a local basis, and frontage roads could still be constructed if warranted by traffic studies. State nickname: Lone Star State Other U.S. States Capital Austin Largest city Houston Governor Rick Perry Official languages None Area 696,241 km² (2nd) - Land 678,907 km² - Water 17,333 km² (2. ...
History The concept of limited-access automobile highways dates back to the New York City area Parkway system, which began to be constructed in 1907–1908. Designers elsewhere also researched these ideas, especially in Germany, where the Autobahn became the first national freeway system. On December 30, 1940 California opened its first freeway, the Arroyo Seco Parkway, now called the Pasadena Freeway, which connected Pasadena with Los Angeles. Today, many freeways in the United States belong to the extensive Interstate highway system (most of which was completed between 1960 and 1990). Almost all interstates are freeways, but the earlier United States highway system and the highway systems of U.S. states also have many sections that are limited-access (though these systems are mostly composed of uncontrolled roads). Only a handful of sections of the Interstate system are not freeways, such as I-81 as it crosses the American span of the 2-lane Thousand Islands Bridge. Midtown Manhattan, looking north from the Empire State Building, 2005 New York City (officially named the City of New York) is the most populous city in the state of New York and the entire United States. ...
For other uses, see Parkway (disambiguation). ...
1907 was a common year starting on Tuesday (see link for calendar). ...
1908 is a leap year starting on Wednesday (link will take you to calendar). ...
The Federal Republic of Germany (German: Bundesrepublik Deutschland) is one of the worlds leading industrialised countries, located in the heart of Europe. ...
Autobahn (pronounced in IPA, plural Autobahnen) is the German word for a major high-speed road usually linking one or more cities and towns, similar to motorway or freeway in English-speaking countries. ...
December 30 is the 364th day of the year (365th in leap years) in the Gregorian Calendar, with 1 day remaining. ...
1940 was a leap year starting on Monday (link will take you to calendar). ...
State nickname: The Golden State Other U.S. States Capital Sacramento Largest city Los Angeles Governor Arnold Schwarzenegger Official languages English Area 410,000 km² (3rd) - Land 404,298 km² - Water 20,047 km² (4. ...
California State Route 110 extends from from California State Route 47 in USA. Most of Route 110 south of Interstate 10 is designated Interstate 110; the southernmost section is again signed as a state route. ...
The Colorado Street Bridge in Pasadena, CA Pasadena is a city located in Los Angeles County, California, United States. ...
Griffith Observatory and the Downtown Los Angeles skyline. ...
A typical rural stretch of Interstate Highway, with two lanes in each direction separated by a large grassy median, and with cross-traffic limited to overpasses and underpasses. ...
Current U.S. Highway shield The United States Highway System is an integrated system of roads in the United States numbered within a nationwide grid. ...
A U.S. state is any one of the 50 states which have membership of the federation known as the United States of America (USA or U.S.). The separate state governments and the U.S. federal government share sovereignty. ...
Interstate 81 is an interstate highway in the eastern part of the United States. ...
Controversy Freeways have been heavily criticized by environmentalists and preservationists for the noise, pollution, and economic shifts they bring. Additionally, they have also been criticized by the driving public about the inefficiency in which they handle peak hour traffic. Often, rural freeways open up vast areas to economic development, generally raising property values. However, mature freeways in urban areas are quite often a source of lowered property values, contributing to the deleterious effects of urban blight. For this reason, almost no new urban freeways have been built in the U.S. since 1970, and some have even been demolished and reclaimed as boulevards, notably in San Francisco (Embarcadero Freeway) and Milwaukee (Park East Freeway). Some argue that freeway expansion is self-defeating, in that expansion will just generate more traffic. This is the debated induced demand hypothesis. Harbor Freeway in downtown L.A. as seen from above, facing northbound, on July 1, 2004 The severe traffic congestion depicted is typical of the Harbor on weekdays, during all daylight hours (and occasionally late into the night). ...
Harbor Freeway in downtown L.A. as seen from above, facing northbound, on July 1, 2004 The severe traffic congestion depicted is typical of the Harbor on weekdays, during all daylight hours (and occasionally late into the night). ...
Other meanings: Movie starring Jackie Chan and Chris Tucker, expansion pack to SimCity 4, shuffling puzzle by ThinkFun, album. ...
This article is about the largest city in California. ...
Other meanings: Movie starring Jackie Chan and Chris Tucker, expansion pack to SimCity 4, shuffling puzzle by ThinkFun, album. ...
Interstate 45 is an intrastate interstate highway located entirely within the state of Texas, United States. ...
This article is about the city in California. ...
This article is about Milwaukee in Wisconsin. ...
Induced demand is the phenomenon that after supply increases, more of a good is consumed. ...
A hypothesis (= assumption in ancient Greek) is a proposed explanation for a phenomenon. ...
Pro-freeway advocates point out that properly designed and maintained freeways are aesthetically pleasing, convenient, and safe (in comparison to the uncontrolled roads they replace or supplement.) Freeways expand recreation, employment and education opportunities for individuals and open new markets to small businesses. And for many, uncongested freeways are fun to drive. A small business may be defined as a business with a small number of employees. ...
At present, freeway expansion has largely stalled in the United States, due to a multitude of factors that converged in the 1970s: higher due process requirements prior to taking of private property, increasing land values, increasing costs for construction materials, local opposition to new freeways in urban cores, the passage of the National Environmental Policy Act (which imposed the requirement that each new project must have an environmental impact statement or report), and falling gas tax revenues as a result of the nature of the flat-cent tax (it is not automatically adjusted for inflation) and the tax revolt movement. Dramatic improvements in vehicle gas mileage have also reduced gas tax revenues. The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ...
1970 was a common year starting on Thursday. ...
Due process of law is a legal concept that ensures the government will respect all of a persons legal rights instead of just some or most of those legal rights, when the government deprives a person of life, liberty, or property. ...
Use of the term The concept of property or ownership has no single or universally accepted definition. ...
The National Environmental Policy Act (or, NEPA) was signed into law on January 1, 1970 by US President Richard Nixon. ...
An environmental impact statement (EIS) is an examination of the effects on the environment that will occur if a particular action is taken. ...
A gasoline tax (also known as a gas tax, petrol tax, fuel tax or fuel duty) is a sales tax imposed on the sale of gasoline. ...
A tax revolt is a political struggle to repeal, limit, or roll back a government-imposed tax. ...
Recent developments Outside the U.S., many countries continue to rapidly expand their freeway networks. Examples include: Australia, Canada, Chile, China, France, India, Israel, Mexico, Malaysia and Taiwan. Australia and France in particular have been innovative in using the newest tunneling technologies to bring freeways into high-density downtowns (Sydney and Melbourne) and historic rural areas (Versailles). China already has the world's second largest freeway network in terms of total kilometers and will probably overtake the U.S. well before the end of the 21st century. Satellite image of Santiago Santiago (full form Santiago de Chile) is the capital of Chile. ...
Australia, officially the Commonwealth of Australia, is the sixth-largest country in the world, the only country to occupy an entire continent, and the largest in the region of Australasia/Oceania. ...
Canada is a sovereign state in northern North America, the northern-most country in the world, and the second largest in total area. ...
The Republic of Chile is a country in South America occupying a long coastal strip between the Andes mountains and the Pacific Ocean. ...
The Great Wall of China, stretching over 6,700 km, was erected beginning in the 3rd century BC to guard the north from raids by men on horses. ...
The French Republic or France (French: République française or France) is a country whose metropolitan territory is located in western Europe, and which is further made up of a collection of overseas islands and territories located in other continents. ...
The Republic of India is the second most populous country in the world, with a population of more than one billion, and is the seventh largest country by geographical area. ...
The State of Israel (Hebrew: מְדִינַת יִשְׂרָאֵל, transliteration: ; Arabic: دَوْلَةْ اِسْرَائِيل, transliteration: ) is a country in the Middle East on the eastern edge of the Mediterranean Sea. ...
The United Mexican States or Mexico (Spanish: Estados Unidos Mexicanos or México; regarding the use of the variant spelling Méjico, see section The name below) is a country located in North America, bordered to the north by the United States of America, to the southeast by Guatemala and Belize, to...
The Federation of Malaysia is a country in Southeast Asia. ...
Taiwan is mostly mountainous in the east, but gradually transitions to gently sloping plains in the west (satellite photo by NASA). ...
This is about the city of Sydney in Australia. ...
Versailles, formerly the capital city of the kingdom of France, is now a wealthy suburb of Paris and is still an important administrative and judicial center. ...
Meanwhile, major progress has been made in making existing U.S. freeways and expressways more efficient. Experiments include the addition of high-occupancy vehicle lanes (HOV lanes) to discourage driving solo, and building new roads with train tracks down the median (or overhead). California has been very innovative in squeezing HOVs into limited right-of-way (by elevating them), and in building special HOV-only ramps so that HOVs can switch freeways or exit the freeway without having to merge across regular traffic. Many states have added truck-only ramps or lanes on heavily congested routes, so that cars need not weave around slow-moving big rigs. A permanent, separated high-occupancy vehicle lane on I-91 in Connecticut A high occupancy vehicle (or HOV) is any vehicle with a driver and one or more (or sometimes two or more, or three or more) passengers. ...
This article is about trains in rail transport. ...
For central reservations (such as for hotels), see call center. ...
Intelligent transportation systems (ITS) are also increasingly used, with cameras to monitor and direct traffic, so that police, fire, ambulance, tow, or other assistance vehicles can be dispatched as soon as there is a problem, and to warn drivers via variable message signs, radio, television, and the web to avoid problem areas. Research has been underway for many years on how to partly automate cars by making smart roads with such things as buried magnets to guide sensor-equipped vehicles, with on-board GPS to determine location, direction, and destination. While these systems may eventually be used on surface streets as well, they are most practical in a freeway setting. The Intelligent Transportation System (ITS) program is an initiative of the United States Department of Transportation to add information technology to transport infrastructure and vehicles. ...
A camera is a device used to take pictures (usually photographs), either singly or in sequence, with or without sound, such as with video cameras. ...
MPD officers man a police-line in the District of Columbia A car of the Devon and Cornwall Constabulary, England Police forces are government organisations ostensibly charged with the responsibility of maintaining law and order. ...
Firefighter with an axe A firefighter, sometimes still called a fireman though women have increasingly joined firefighting units, is a person who is trained and equipped to put out fires, rescue people and in some areas provide emergency medical services. ...
Ambulance An ambulance is a vehicle designated for the transport of sick or injured people. ...
A tow truck, also sometimes called a wrecker, is an emergency service vehicle used to take disabled motor vehicles off the roadway to another location in case of breakdown or collision. ...
Vehicles are non-living means of transport. ...
A Dispatch can be: A report sent to a newspaper by a correspondent. ...
Driving is the controlled operation of a vehicle, which is usually a motor vehicle such as a truck, bus, motorcycle, or car. ...
A variable (also changeable, electronic, or dynamic) message sign, often abbreviated VMS or CMS, is an electronic traffic sign often used on roadways to give travelers information about special events. ...
Radio transmission diagram and electromagnetic waves Radio is a technology that allows the transmission of signals by modulation of electromagnetic waves with frequencies below those of light. ...
An American family watching television in the 1950s. ...
Graphic representation of the world wide web around Wikipedia The World Wide Web (WWW, or simply Web) is an information space in which the items of interest, referred to as resources, are identified by global identifiers called Uniform Resource Identifiers (URI). ...
Automation (ancient Greek: = self dictated) or Industrial Automation is the use of computers to control industrial machinery and processes, replacing human operators. ...
Magnetic lines of force of a bar magnet shown by iron filings on paper A magnet is an object that has a magnetic field. ...
A sensor is a technological device or biological organ that detects, or senses, a signal or physical condition. ...
Over fifty GPS satellites such as this NAVSTAR have been launched since 1978. ...
In the United States, a few short privatized toll freeways have also been built by private companies with mixed success. The word toll can mean more than one thing: In the context of roads, see toll road and toll bridge In the context of New Zealand transport, see Toll NZ In the context of Australian transport, see Toll Holdings In the context of genetics, see toll (gene) In the context...
See also A motorway (Ireland, New Zealand, the United Kingdom and some Commonwealth nations) is both a type of road and a classification. ...
Autobahn (pronounced in IPA, plural Autobahnen) is the German word for a major high-speed road usually linking one or more cities and towns, similar to motorway or freeway in English-speaking countries. ...
Autoroute is a French word meaning, literally, a motor road, and corresponding to the words motorway or freeway in English. ...
An expressway is a divided highway, usually 4 lanes or wider in size, where direct access to adjacent properties has been eliminated. ...
Divided Highway is the fourteenth studio album by American rock band The Doobie Brothers, released in 2003. ...
The hierarchy of roads. ...
A highway is a major road within a city, or linking several cities together. ...
List of famous and notable roads and highways. ...
For other uses, see Parkway (disambiguation). ...
The field of road safety is concerned with reducing the numbers or the consequences of vehicle crashes, by developing and implementing management systems based in a multidisciplinary and holistic approach, with interrelated activities in a number of fields. ...
External links - Georgia NaviGAtor (http://www.georgianavigator.com) - example of a freeway information system
- A new concept in motorway design - Rethink the highways (http://www.archenzo.it)
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