Types of road

Types of road

Various types of road are in use around the world. Roads range in size from private driveways, to the stereotypical two-lane highway, to high capacity dual carriageway routes, such as freeways and motorways. The names associated with a particular type of road vary around the world, and many names are partially equivalent but not exactly equivalent to each other. As a result, the name given to a road in one country could apply to a different type of road in another country. Details for each road type are covered in the specific articles about each type of road.

Road materials

Roads are constructed from many materials. The material used depends on local conditions and other factors such as the amount of traffic the road is designed for and the weight of the vehicles allowed to use the road. Some of the materials used to build roads includes:

*Asphalt concrete
*Gravel road
*Ice road

Descriptive road terms

Some terms used to describe roads cover characteristics of the road and can be used on many types of roads. These terms include:
*Dual carriageway (also known as a divided highway)
*Toll road

Low capacity

Low capacity roads are generally low speed local roads serving a particular village, town, neighborhood, or city. They provide access to and from roads designed with higher capacities and for higher speeds. They often also serve the broadest variety of road users such as pedestrians, automobiles, motorcycles, trucks, animals, wagons, and carriages. This category includes:

*Arterial road
*Frontage road

High speed roads

Most countries have major roads of medium capacity that connect cities, places, other routes, or other significant points of interest. They may have multiple lanes of traffic, a median or central reservation between lanes of opposing traffic, and partial access control (ramps and grade separation). Often they are restricted to motorized vehicles that can maintain high speeds. However, they can also be as simple as a two-lane shoulderless road.

These roads go by names like:

*2+1 road
*Farm to Market Road
*Super two

High speed restricted access roads

Most high capacity roads are built to a higher standard than general purpose roads. In order to provide for higher traffic volumes, access is restricted to certain categories of motorized vehicles and limited to a certain number of access points where grade separations and ramps enable through traffic to proceed without interruption. These high capacity routes are almost always divided.

Multi Modal

Multi-modal roads are a newer concept in which a dedicated HOV or carpool lane is also set with light rail tracks. This single lane serves dual purpose of providing priority to Buses, Lightrail, as well as carpools.Fact|date=August 2007
Denver, Colorado is one of the first implementations of Multi-modal lanes in North America. In Denver, Lightrail is run manually to prevent any accidents. The second iteration of light rail, called the T-REX Project successfully implemented 17 miles of dual-track light rail, bike path, and also widened conventional roadways along most major arteries in the Denver Metro Area.Fact|date=August 2007

Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Road racing — can be a term involving road running, road bicycle races, or automobile races. As contemplated in this article, the term will be treated as it relates to motorsport, specifically, automobile racing and motorcycle racing. Types of road coursesRoad …   Wikipedia

  • Road surface marking — is any kind of device or material that is used on a road surface in order to convey official information. Road surface markings are used on paved roadways to provide guidance and information to drivers and pedestrians. Uniformity of the markings… …   Wikipedia

  • Road traffic safety — Sidewalks, curbs and traffic signals in Maryland, United States …   Wikipedia

  • Road — This article is about a route, thoroughfare or way that supports travel by a means of conveyance. For a place outside a harbor where a ship can lie at anchor, see Roadstead. For public roads, see Highway. For other routes, see thoroughfare. For… …   Wikipedia

  • Road accident types — Road traffic accidents generally fall into one of four common types:* Head on Collisions * Accidents at junctions * Run offs * Accidents involving pedestrians/cyclistsAlthough other types of accident do occur.Head on CollisionsSee also Head on… …   Wikipedia

  • Road signs in the Republic of Ireland — mostly differ from the traffic signs used elsewhere in Europe. Directional signage is similar to that of the United Kingdom, but is bilingual. Distances are in kilometres, unlike in the UK where Imperial measurements are still used. Apart from… …   Wikipedia

  • Road signs in the United Kingdom — conform broadly to European norms, though a number of signs are unique to Britain and direction signs omit European route numbers. The system currently in use was developed in the late 1950s and the early 1960s by the Anderson Committee, which… …   Wikipedia

  • Road transport — (British English) or road transportation (American English) is transport on roads of passengers or goods.A hybrid of road transport and ship transport is the historic horse drawn boat.HistoryThe first forms of road transport were horses, oxen or… …   Wikipedia

  • Road rage — is the behavior by a driver of an automobile or other motor vehicle, which thus causes collisions or incidents on roadways. It can be thought of as an extreme case of aggressive driving. The origins of the phrase can be traced back at least as… …   Wikipedia

  • Road Fighter — European arcade flyer of Road Fighter. Developer(s) Konami …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”