Sidewalk
Encyclopedia
A sidewalk, or pavement, footpath, footway, and sometimes platform, is a path along the side of a road
. A sidewalk may accommodate moderate changes in grade (height) and is normally separated from the vehicular section by a curb
(British English: kerb). There may also be a road verge (a strip of vegetation, grass or bushes or trees or a combination of these) either between sidewalk and the roadway
(British English: carriageway) or between the sidewalk and the boundary.
In some places, the same term may also be used for a paved path, trail
or footpath
that is not next to a road, for example, a path through a park.
and multi-use path is reserved for use for ones available for use by both pedestrians and bicyclists.
Walkway
is a more comprehensive term that includes stairs, ramps, passageways, and related structures that facilitate the use of a path as well as the sidewalk. The term pathway is used for pedestrian paths that are not next to a road.
is only used for paths that are not associated with a highway.
In professional and common usage, the term shared-use path is used where cyclists are also able to use the same section of path as pedestrians. The term Segregated footway can be used for a shared-use path where separate parts of the path are allocated to cyclists and pedestrians. Cycle Track is the legal term for both of these.
According to the Shorter Oxford English Dictionary
(third edition 1933) the term sidewalk was still in occasional use in the UK and pavement was also used for: 'a piece of paved work'; 'the superficial covering of a floor, yard, street etc' as well as for 'the paved part of a public thoroughfare
, but now only the paved footway by the side of the street
'.
, Sri Lanka
, South Africa
, Platform in India
and Footpath in Australia
, India
, Ireland
, New Zealand
and Pakistan
.
urban towns was a matter of considerable concern in the 17th-18th centuries and a number of 'Paving Acts' (Acts of parliament) were passed although they were not always effective as was the case of the 1623 Act for Colchester
.
s, markets by busking
musicians. or for parking
for a variety of vehicles including cars, motorbikes and bicycles.
in 1924, concrete pavements from the 1860s onwards can be found in good repair all over the older districts of San Francisco, having survived the 1906 quake
, and stamped with the name of the contractor and date of installation. When quantities of Portland cement
were first imported to the United States in the 1880s, its principal use was in the construction of sidewalks. In the 19th century and early 20th century, sidewalks of wood
were common in some locations. They may still be found at historic beach locations and in conservation areas to protect the land beneath and around, called boardwalk
s. Contemporary sidewalks are most often made of concrete
(particularly in the United States
and Canada
), tarmac
, asphalt
, brick
(particularly in Europe
), stone, slab
or (increasingly) rubber
. Multi-use paths alongside roads are sometimes made of materials that are softer than concrete, such as asphalt.
In the United States
, the most common type of sidewalk consists of a poured concrete ribbon with cross-lying strain relief grooves at intervals of 5 feet (1.5 m). This is intended to minimize visible damage from tectonic and temperature fluctuations, both of which can crack longer segments. However, freeze-thaw cycles (in cold-weather regions) and tree root growth can eventually result in damage which requires repair. Brick sidewalks are found in some urban areas, usually for aesthetic purposes. Brick sidewalk construction usually involves the usage of a mechanical vibrator to lock the bricks in place after they have been laid (and/or to prepare the soil before laying). Although this might also be done by other tools (as regular hammers and heavy rolls), a vibrator is often used to speed up the process.
In other countries, suburban pavements
are most commonly used. This kind of approach (using pavements) is more economical and sometimes more environmentally-friendly, depending on what material is used (e.g. trass instead of energy intensive Portland cement concrete or petroleum-based materials as asphalt or tar-penetration macadam). In the United Kingdom
the suburban pavements are most commonly constructed of tarmac
, which is however not more environmentally-friendly. In urban
or inner-city areas pavements are most commonly constructed of slabs, stone, or brick depending upon the surrounding street architecture
and furniture
.
Stone
slabs called flagstone
s or flags are sometimes used where an attractive appearance is required, as in historic town centres. In other places, pre-cast concrete slabs (called paving slabs or, less correctly, paving stones) are used. These may be coloured or textured to resemble stone.
Research at the University of North Carolina for the U.S. Department of Transportation found that the presence or absence of a sidewalk and the speed limit
are significant factors in the likelihood of a vehicle/pedestrian crash. Sidewalk presence had a risk ratio of 0.118, which means that the likelihood of a crash on a road with a paved sidewalk was 88.2 percent lower than one without a sidewalk. “This should not be interpreted to mean that installing sidewalks would necessarily reduce the likelihood of pedestrian/motor vehicle crashes by 88.2 percent in all situations. However, the presence of a sidewalk clearly has a strong beneficial effect of reducing the risk of a ‘walking along roadway’ pedestrian/motor vehicle crash.” The study does not count crashes that happen when walking across a roadway. The speed limit risk ratio was 1.116, which means that a 16.1-km/h (10-mi/h) increase in the limit yields a factor of (1.116)10 or 3.
On the other hand, the implementation of schemes which involve the removal of sidewalks, such as shared space
schemes, are reported to deliver a dramatic drop in crashes and congestion too, which indicates that a number of other factors, such as the local speed environment, also play an important role in whether sidewalks are necessarily the best local solution for pedestrian safety.
In cold weather, black ice
is a common problem with unsalted sidewalks. The ice forms a thin transparent surface film which is almost impossible to see, and so results in many slips by pedestrians.
Riding bicycles on sidewalks is discouraged since it is more dangerous than riding in the street. Some jurisdictions prohibit sidewalk riding except for children. In addition to the risk of cyclist/pedestrian collisions, cyclists face increase risks from collisions with motor vehicles at street crossings and driveways. Riding in the direction opposite to traffic in the adjacent lane is especially risky.
Road
A road is a thoroughfare, route, or way on land between two places, which typically has been paved or otherwise improved to allow travel by some conveyance, including a horse, cart, or motor vehicle. Roads consist of one, or sometimes two, roadways each with one or more lanes and also any...
. A sidewalk may accommodate moderate changes in grade (height) and is normally separated from the vehicular section by a curb
Curb (road)
A curb, or kerb , is the edge where a raised pavement/sidewalk/footpath, road median, or road shoulder meets an unraised street or other roadway.-Function:...
(British English: kerb). There may also be a road verge (a strip of vegetation, grass or bushes or trees or a combination of these) either between sidewalk and the roadway
Carriageway
A carriageway consists of a width of road on which a vehicle is not restricted by any physical barriers or separation to move laterally...
(British English: carriageway) or between the sidewalk and the boundary.
In some places, the same term may also be used for a paved path, trail
Trail
A trail is a path with a rough beaten or dirt/stone surface used for travel. Trails may be for use only by walkers and in some places are the main access route to remote settlements...
or footpath
Footpath
A Footpath is a thoroughfare intended for by pedestrians but not by motorized vehicles. The term is often for paths within an urban area that offer shorter quieter routes for pedestrians, they may also provide access to the surrounding countryside or parks...
that is not next to a road, for example, a path through a park.
United States
The term Sidewalk is used for the pedestrian path beside a road. Shared-use pathSegregated cycle facilities
Segregated cycle facilities are marked lanes, tracks, shoulders and paths designated for use by cyclists from which motorised traffic is generally excluded...
and multi-use path is reserved for use for ones available for use by both pedestrians and bicyclists.
Walkway
Walkway
In US English, a walkway is a composite or umbrella term for all engineered surfaces or structures which support the use of trails. These include sidewalks, footbridges, stiles, stairs, ramps, paseos or tunnels...
is a more comprehensive term that includes stairs, ramps, passageways, and related structures that facilitate the use of a path as well as the sidewalk. The term pathway is used for pedestrian paths that are not next to a road.
United Kingdom
The most common term in everyday usage is pavement. The professional, civil engineering and legal term for this is footway. Legally the term footpathFootpath
A Footpath is a thoroughfare intended for by pedestrians but not by motorized vehicles. The term is often for paths within an urban area that offer shorter quieter routes for pedestrians, they may also provide access to the surrounding countryside or parks...
is only used for paths that are not associated with a highway.
In professional and common usage, the term shared-use path is used where cyclists are also able to use the same section of path as pedestrians. The term Segregated footway can be used for a shared-use path where separate parts of the path are allocated to cyclists and pedestrians. Cycle Track is the legal term for both of these.
According to the Shorter Oxford English Dictionary
Shorter Oxford English Dictionary
The Shorter Oxford English Dictionary, often abbreviated to SOED, is a scaled-down version of the Oxford English Dictionary . It comprises two volumes rather than the twenty needed for the full second edition of the OED...
(third edition 1933) the term sidewalk was still in occasional use in the UK and pavement was also used for: 'a piece of paved work'; 'the superficial covering of a floor, yard, street etc' as well as for 'the paved part of a public thoroughfare
Thoroughfare
A thoroughfare is a place of transportation intended to connect one location to another. Highways, roads, and trails are examples of thoroughfares used by a variety of general traffic. On land a thoroughfare may refer to anything from a rough trail to multi-lane highway with grade separated...
, but now only the paved footway by the side of the street
Street
A street is a paved public thoroughfare in a built environment. It is a public parcel of land adjoining buildings in an urban context, on which people may freely assemble, interact, and move about. A street can be as simple as a level patch of dirt, but is more often paved with a hard, durable...
'.
Other countries
The term Pavement is used in MaltaMalta
Malta , officially known as the Republic of Malta , is a Southern European country consisting of an archipelago situated in the centre of the Mediterranean, south of Sicily, east of Tunisia and north of Libya, with Gibraltar to the west and Alexandria to the east.Malta covers just over in...
, Sri Lanka
Sri Lanka
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...
, South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...
, Platform in India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
and Footpath in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
, Ireland
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...
, New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...
and Pakistan
Pakistan
Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...
.
History
The state of the roads in BritishUnited Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
urban towns was a matter of considerable concern in the 17th-18th centuries and a number of 'Paving Acts' (Acts of parliament) were passed although they were not always effective as was the case of the 1623 Act for Colchester
Colchester
Colchester is an historic town and the largest settlement within the borough of Colchester in Essex, England.At the time of the census in 2001, it had a population of 104,390. However, the population is rapidly increasing, and has been named as one of Britain's fastest growing towns. As the...
.
Social uses
Sidewalks may be used as rich social spaces with sidewalk cafeSidewalk cafe
A sidewalk cafe is an outdoor part of a coffeehouse or cafe. This is an area where customers go to relax, dine, and socialize...
s, markets by busking
Busking
Street performance or busking is the practice of performing in public places, for gratuities, which are generally in the form of money and edibles...
musicians. or for parking
Parking
Parking is the act of stopping a vehicle and leaving it unoccupied for more than a brief time. Parking on one or both sides of a road is commonly permitted, though often with restrictions...
for a variety of vehicles including cars, motorbikes and bicycles.
Construction
While some assert that Arthur Wesley Hall and William Alexander McVay invented concrete sidewalks and partitions in St. Stephen, New BrunswickSt. Stephen, New Brunswick
St. Stephen is a Canadian town in Charlotte County, New Brunswick, situated on the east bank of the St. Croix River at .-Climate:...
in 1924, concrete pavements from the 1860s onwards can be found in good repair all over the older districts of San Francisco, having survived the 1906 quake
1906 San Francisco earthquake
The San Francisco earthquake of 1906 was a major earthquake that struck San Francisco, California, and the coast of Northern California at 5:12 a.m. on Wednesday, April 18, 1906. The most widely accepted estimate for the magnitude of the earthquake is a moment magnitude of 7.9; however, other...
, and stamped with the name of the contractor and date of installation. When quantities of Portland cement
Portland cement
Portland cement is the most common type of cement in general use around the world because it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout...
were first imported to the United States in the 1880s, its principal use was in the construction of sidewalks. In the 19th century and early 20th century, sidewalks of wood
Boardwalk
A boardwalk, in the conventional sense, is a wooden walkway for pedestrians and sometimes vehicles, often found along beaches, but they are also common as paths through wetlands, coastal dunes, and other sensitive environments....
were common in some locations. They may still be found at historic beach locations and in conservation areas to protect the land beneath and around, called boardwalk
Boardwalk
A boardwalk, in the conventional sense, is a wooden walkway for pedestrians and sometimes vehicles, often found along beaches, but they are also common as paths through wetlands, coastal dunes, and other sensitive environments....
s. Contemporary sidewalks are most often made of concrete
Concrete
Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...
(particularly in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
and Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
), tarmac
Tarmac
Tarmac is a type of road surface. Tarmac refers to a material patented by Edgar Purnell Hooley in 1901...
, asphalt
Asphalt
Asphalt or , also known as bitumen, is a sticky, black and highly viscous liquid or semi-solid that is present in most crude petroleums and in some natural deposits, it is a substance classed as a pitch...
, brick
Brick
A brick is a block of ceramic material used in masonry construction, usually laid using various kinds of mortar. It has been regarded as one of the longest lasting and strongest building materials used throughout history.-History:...
(particularly in Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
), stone, slab
Slab
-Physical materials:* Slab , a length of metal* Concrete slab, a flat plate used in construction* A piece of stone or concrete used to pave sidewalks or road surfaces* Slab : That portion of a tectonic plate that is subducting...
or (increasingly) rubber
Rubber
Natural rubber, also called India rubber or caoutchouc, is an elastomer that was originally derived from latex, a milky colloid produced by some plants. The plants would be ‘tapped’, that is, an incision made into the bark of the tree and the sticky, milk colored latex sap collected and refined...
. Multi-use paths alongside roads are sometimes made of materials that are softer than concrete, such as asphalt.
In the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
, the most common type of sidewalk consists of a poured concrete ribbon with cross-lying strain relief grooves at intervals of 5 feet (1.5 m). This is intended to minimize visible damage from tectonic and temperature fluctuations, both of which can crack longer segments. However, freeze-thaw cycles (in cold-weather regions) and tree root growth can eventually result in damage which requires repair. Brick sidewalks are found in some urban areas, usually for aesthetic purposes. Brick sidewalk construction usually involves the usage of a mechanical vibrator to lock the bricks in place after they have been laid (and/or to prepare the soil before laying). Although this might also be done by other tools (as regular hammers and heavy rolls), a vibrator is often used to speed up the process.
In other countries, suburban pavements
Pavement (material)
Road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past cobblestones and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete. Such...
are most commonly used. This kind of approach (using pavements) is more economical and sometimes more environmentally-friendly, depending on what material is used (e.g. trass instead of energy intensive Portland cement concrete or petroleum-based materials as asphalt or tar-penetration macadam). In the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
the suburban pavements are most commonly constructed of tarmac
Tarmac
Tarmac is a type of road surface. Tarmac refers to a material patented by Edgar Purnell Hooley in 1901...
, which is however not more environmentally-friendly. In urban
Urban area
An urban area is characterized by higher population density and vast human features in comparison to areas surrounding it. Urban areas may be cities, towns or conurbations, but the term is not commonly extended to rural settlements such as villages and hamlets.Urban areas are created and further...
or inner-city areas pavements are most commonly constructed of slabs, stone, or brick depending upon the surrounding street architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...
and furniture
Street furniture
Street furniture is a collective term for objects and pieces of equipment installed on streets and roads for various purposes, including traffic barriers,...
.
Stone
Rock (geology)
In geology, rock or stone is a naturally occurring solid aggregate of minerals and/or mineraloids.The Earth's outer solid layer, the lithosphere, is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic...
slabs called flagstone
Flagstone
Flagstone, is a generic flat stone, usually used for paving slabs or walkways, patios, fences and roofing. It may be used for memorials, headstones, facades and other constructions. The name derives from Middle English flagge meaning turf, perhaps from Old Norse flaga meaning slab.Flagstone is a...
s or flags are sometimes used where an attractive appearance is required, as in historic town centres. In other places, pre-cast concrete slabs (called paving slabs or, less correctly, paving stones) are used. These may be coloured or textured to resemble stone.
Road traffic safety
Research commissioned for the Florida Department of Transportation, published in 2005, found that, in Florida, the Crash Reduction Factor (used to estimate the expected reduction of crashes during a given period) resulting from the installation of sidewalks averaged 74%.Research at the University of North Carolina for the U.S. Department of Transportation found that the presence or absence of a sidewalk and the speed limit
Speed limit
Road speed limits are used in most countries to regulate the speed of road vehicles. Speed limits may define maximum , minimum or no speed limit and are normally indicated using a traffic sign...
are significant factors in the likelihood of a vehicle/pedestrian crash. Sidewalk presence had a risk ratio of 0.118, which means that the likelihood of a crash on a road with a paved sidewalk was 88.2 percent lower than one without a sidewalk. “This should not be interpreted to mean that installing sidewalks would necessarily reduce the likelihood of pedestrian/motor vehicle crashes by 88.2 percent in all situations. However, the presence of a sidewalk clearly has a strong beneficial effect of reducing the risk of a ‘walking along roadway’ pedestrian/motor vehicle crash.” The study does not count crashes that happen when walking across a roadway. The speed limit risk ratio was 1.116, which means that a 16.1-km/h (10-mi/h) increase in the limit yields a factor of (1.116)10 or 3.
On the other hand, the implementation of schemes which involve the removal of sidewalks, such as shared space
Shared space
Shared space is an urban design concept aimed at integrated use of public spaces. It encourages traffic engineers, urban planners and experts from other fields to consult with users of public space when planning and designing streets and squares in both built and non-built environments...
schemes, are reported to deliver a dramatic drop in crashes and congestion too, which indicates that a number of other factors, such as the local speed environment, also play an important role in whether sidewalks are necessarily the best local solution for pedestrian safety.
In cold weather, black ice
Black ice
Black ice, sometimes called glare ice or clear ice, refers to a thin coating of glazed ice on a surface.While not truly black, it is virtually transparent, allowing black asphalt/macadam roadways to be seen through it, hence the term "black ice"...
is a common problem with unsalted sidewalks. The ice forms a thin transparent surface film which is almost impossible to see, and so results in many slips by pedestrians.
Riding bicycles on sidewalks is discouraged since it is more dangerous than riding in the street. Some jurisdictions prohibit sidewalk riding except for children. In addition to the risk of cyclist/pedestrian collisions, cyclists face increase risks from collisions with motor vehicles at street crossings and driveways. Riding in the direction opposite to traffic in the adjacent lane is especially risky.
See also
- PavementPavement (material)Road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past cobblestones and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete. Such...
- CaféCaféA café , also spelled cafe, in most countries refers to an establishment which focuses on serving coffee, like an American coffeehouse. In the United States, it may refer to an informal restaurant, offering a range of hot meals and made-to-order sandwiches...
- Crosswalk
- CurbCurb (road)A curb, or kerb , is the edge where a raised pavement/sidewalk/footpath, road median, or road shoulder meets an unraised street or other roadway.-Function:...
, Curb ramp - Desire linesDesire linesA desire path is a path developed by erosion caused by footfall. The path usually represents the shortest or most easily navigated route between an origin and destination...
- Portuguese pavementPortuguese pavementPortuguese pavement , is a traditional style pavement used for many pedestrian areas in Portugal, it can also be found in Olivenza , and throughout the old Portuguese colonies such as Brazil and Macau...
- Public spacePublic spaceA public space is a social space such as a town square that is open and accessible to all, regardless of gender, race, ethnicity, age or socio-economic level. One of the earliest examples of public spaces are commons. For example, no fees or paid tickets are required for entry, nor are the entrants...
- Sidewalk chalkSidewalk chalkSidewalk chalk are typically large colored sticks of calcium sulfate mostly used for drawing on pavement or cement sidewalk. It is sometimes used to draw a four square court or a hopscotch board.-Use:...
- CobblestoneCobblestoneCobblestones are stones that were frequently used in the pavement of early streets. "Cobblestone" is derived from the very old English word "cob", which had a wide range of meanings, one of which was "rounded lump" with overtones of large size...
- AmsterdammertjeAmsterdammertjeAn Amsterdammertje is the typical red-brown steel bollard that is used to separate the sidewalk from the street in Amsterdam. Amsterdammertje means literally 'little one from Amsterdam' in Dutch...
- Big Apple Pothole and Sidewalk Protection CommitteeBig Apple Pothole and Sidewalk Protection CommitteeThe Big Apple Pothole and Sidewalk Protection Committee is an organization created by the New York State Trial Lawyers Association to map the sidewalks of New York City for defects capable of causing personal injury...
External links
- Los Alamos Walkability Advocacy Group
- PEDS a member-based advocacy group dedicated to making metro Atlanta safe and accessible for all pedestrians.
- Pedestrian and Bicycle Information Center (PBIC), a U.S.A.-based clearinghouse for information for pedestrians (including transit users) and bicyclists.