The road hierarchy categorizes roads according to their functions and capacities. While sources differ on the exact nomenclature, the basic hierarchy comprises...

A hierarchy (from Greek: ἱεραρχία, hierarkhia, 'rule of a high priest', from hierarkhes, 'president of sacred rites') is an arrangement of items (objects...

An arterial road or arterial thoroughfare is a high-capacity urban road that sits below freeways/motorways on the road hierarchy in terms of traffic flow...

The street hierarchy is an urban planning technique for laying out road networks that exclude automobile through-traffic from developed areas. It is conceived...

transport hierarchy (Canada), street user hierarchy (US), sustainable transport hierarchy (Wales), urban transport hierarchy or road user hierarchy (Australia...

A road is a thoroughfare for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians...

Tarmacadam is a road surfacing material made by combining tar and macadam (crushed stone and sand), patented by Welsh inventor Edgar Purnell Hooley in...

lane Historic roads and trails Ice road Roman roads Sunken lane Higher capacity roads, sometimes with medians 2+1 road 2+2 road Arterial road Autostrasse...

A road train, also known as a land train or long combination vehicle (LCV) is a semi-truck used to move road freight more efficiently than single-trailer...

A toll road, also known as a turnpike or tollway, is a public or private road (almost always a freeway in the present day) for which a fee (or toll) is...

breakdown lane is an emergency stopping lane by the verge on the outer side of a road or motorway. Many wider freeways, or expressways elsewhere have shoulders...

ring road (also known as circular road, beltline, beltway, circumferential (high)way, loop or orbital) is a road or a series of connected roads encircling...

A settlement hierarchy is a way of arranging settlements into a hierarchy based upon their size. The term is used by landscape historians and in the National...

Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam around 1820, in which crushed stone is placed in shallow, convex...

transverse ripples in the surface of gravel and dirt roads. Washboarding occurs in dry, granular road material with repeated traffic, traveling at speeds...

is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In the...

v t e Road hierarchy Types of road Road junctions Surfaces Asphalt concrete Bioasphalt Brick Chipseal Cobblestone Concrete Reinforced concrete Corduroy...

A road surface (British English) or pavement (North American English) is the durable surface material laid down on an area intended to sustain vehicular...

more roads converge, diverge, meet or cross at the same height, as opposed to an interchange, which uses bridges or tunnels to separate different roads. Major...

Roads in Italy are an important mode of transport in Italy. The classification of the roads of Italy is regulated by the Italian traffic code, both from...

Roads in India are an important mode of transport in India. India has a network of over 6,331,791 kilometres (3,934,393 mi) of roads (as of 31 December 2022[update])...

land in the subdivision, a dendrite or hierarchical pattern. Since the 1960s, the pattern has been the dominant road network structure of suburbs and exurbs...

A road verge is a strip of groundcover consisting of grass or garden plants, and sometimes also shrubs and trees, located between a roadway and a sidewalk...

Canada; see spelling differences), is the edge where a raised sidewalk or road median/central reservation meets a street or other roadway. Although curbs...

the Australian experience has some unique features with road kill. The development of roads affects wildlife by altering and isolating habitat and populations...

A cat's eye or road stud is a retroreflective safety device used in road marking and was the first of a range of raised pavement markers. The cat's eye...

Road surface marking is any kind of device or material that is used on a road surface in order to convey official information; they are commonly placed...

A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access...

In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations...

Waste hierarchy is a tool used in the evaluation of processes that protect the environment alongside resource and energy consumption from most favourable...