Transportation in the United States is facilitated by road, air, rail, and waterways. The vast majority of passenger travel occurs by automobile for shorter distances, and airplane for longer distances. In descending order, most cargoes travel by railroad, truck, pipeline, or boat; air shipping is typically used only for perishables and premium express shipments. Transportation is the largest source of greenhouse gas emissions by the United States.
A toll road, also known as a turnpike or tollway, is a public or private road for which a fee is assessed for passage. It is a form of road pricing typically implemented to help recoup the costs of road construction and maintenance.
The National Roads and Motorways in Greece constitute the main road network of the country. These two types of roads are distinct in terms of their construction specifications. Their main difference is that motorways adhere to higher quality construction standards than National Roads.
Electronic toll collection (ETC) is a wireless system to automatically collect the usage fee or toll charged to vehicles using toll roads, HOV lanes, toll bridges, and toll tunnels. It is a faster alternative which is replacing toll booths, where vehicles must stop and the driver manually pays the toll with cash or a card. In most systems, vehicles using the system are equipped with an automated radio transponder device. When the vehicle passes a roadside toll reader device, a radio signal from the reader triggers the transponder, which transmits back an identifying number which registers the vehicle's use of the road, and an electronic payment system charges the user the toll. A major advantage is the driver does not have to stop, reducing traffic delays. Electronic tolling is cheaper than a staffed toll booth, reducing transaction costs for government or private road owners. The ease of varying the amount of the toll makes it easy to implement road congestion pricing, including for high-occupancy lanes, toll lanes that bypass congestion, and city-wide congestion charges. The payment system usually requires users to sign up in advance and load money into a declining-balance account, which is debited each time they pass a toll point.
A rest area is a public facility located next to a large thoroughfare such as a motorway, expressway, or highway, at which drivers and passengers can rest, eat, or refuel without exiting onto secondary roads. Other names include: motorway service area (UK), services (UK), travel plaza, rest stop, oasis (US), service area, rest and service area (RSA), resto, service plaza, lay-by, and service centre (Canada). Facilities may include park-like areas, fuel stations, public toilets, water fountains, restaurants, and dump and fill stations for caravans / motorhomes.
A dual carriageway or divided highway 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.
The Autostrada A3 is a motorway in Southern Italy, which runs from Naples to Salerno, in the region Campania.
Until 2017 the route was much longer, going after Salerno further south until Reggio Calabria; on this year, this section became part of the new A2 motorway and of its two spur routes.
A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway, including limited or no access to adjacent property, some degree of separation of opposing traffic flow, use of grade separated interchanges to some extent, prohibition of some modes of transport such as bicycles or horses, and very few or no intersecting cross-streets or level crossings. The degree of isolation from local traffic allowed varies between countries and regions. The precise definition of these terms varies by jurisdiction.
The Autostrade are roads forming the Italian national system of motorways. The total length of the system is about 6,758 kilometres (4,199 mi). In North and Central Italy, the Autostrade mainly consists of tollways managed by Autostrade per l'Italia, a holding company controlled by Cassa Depositi e Prestiti. Other operators include ASTM, ATP, and Autostrade Lombarde in the north-west; Autostrada del Brennero, A4 Holding, Concessioni Autostradali Venete, and Autovie Venete in the north-east; Strada dei Parchi, SALT, SAT, and Autocisa in the center; and CAS in the south.
A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms include throughway and parkway. Some of these may be limited-access highways, although this term can also refer to a class of highway with somewhat less isolation from other traffic.
The United Kingdom has a network of roads, of varied quality and capacity, totalling about 262,300 miles (422,100 km). Road distances are shown in miles or yards and UK speed limits are indicated in miles per hour (mph) or by the use of the national speed limit (NSL) symbol. Some vehicle categories have various lower maximum limits enforced by speed limiters. A unified numbering system is in place for Great Britain, whilst in Northern Ireland, there is no available explanation for the allocation of road numbers.
The Metropolitan Washington Airports Authority (MWAA) is an independent airport authority, created with the consent of the United States Congress to oversee management, operations, and capital development of the two major airports serving the U.S. national capital: Ronald Reagan Washington National Airport and Dulles International Airport.
A toll road is a road over which users may travel over on payment of a toll, or fee. Tolls are a form of use tax that pays for the cost of road construction and maintenance, without raising taxes on non-users. Investor's bonds necessary for the construction of the roads are issued and sold with the expectation that the bonds will be paid back with user tolls. The toll roads may be run by government agencies that have bond issuing authority and/or private companies that sell bonds or have other sources of finance. Toll roads are usually a government guaranteed road monopoly that guarantees limited or no competing roads will be built by government agencies for the duration of the bonds. Private toll roads built with money raised from private investors in expectation of making money from the tolls probably dominated early toll roads. Government sponsored toll roads often guarantee a minimum payment to the bond holders if traffic volume and toll collections are less than predicted. If the toll authority is a private company there is often a maximum amount of fees that they may extract from users. Toll road operators are typically responsible for maintaining the roads. After the bonds are paid off the road typically reverts to the government agency that authorized the road and owns the land it was built on. Like most government taxes it is not unusual for tolls to continue to be charged after the bonds have been paid off.
There are relatively few private highways in the United States, compared to other parts of the world.
The A15 is an Italian autostrada (motorway) connecting Parma and La Spezia through the valleys of the Taro and Magra Rivers. The road is also known as Autocamionale della Cisa because it crosses the Northern Apennines at the Cisa pass. The main 101-km expanse of the motorway connects the A1 with the A12, thus directly linking the Po Valley with the Italian Riviera and the Versilia region.
The Autostrada A91, also called Autostrada Roma-Fiumicino, is an Italian motorway which connects Rome to the Fiumicino Airport.
A high-occupancy toll lane is a type of traffic lane or roadway that is available to high-occupancy vehicles and other exempt vehicles without charge; other vehicles are required to pay a variable fee that is adjusted in response to demand. Unlike toll roads, drivers have an option to use general purpose lanes, on which a fee is not charged. Express toll lanes, which are less common, operate along similar lines, but do not exempt high-occupancy vehicles.
This article describes the highway systems available in selected countries.
The Highways in Albania are the central state and main transport network in Albania. The motorways and expressways are both part of the national road network. The motorways are primary roads with a speed limit of 110 kilometres per hour (68 mph). They have white on green road signs such as in Italy and other countries nearby. The expressways are the secondary roads, also dual carriageways, but without an emergency lane. They have a speed limit of 90 kilometres per hour (56 mph). They have white on blue road signs.
