A milestone is a numbered marker placed on a route such as a
road,
railway line,
canal or
boundary. They can indicate the distance to towns, cities, and other places or landmarks; or they can give their position on the route relative to some datum location. On roads they are typically located at the side or in a
median or central reservation. They are alternatively known as mile markers, mileposts or mile posts (sometimes abbreviated MPs). A "kilometric point" is a term used in
metricated areas, where distances are commonly measured in
kilometre
The kilometre ( SI symbol: km; or ), spelt kilometer in American English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo- being the SI prefix for ). It is now the measurement unit used for ex ...
s instead of
mile
The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 English ...
s. "Distance marker" is a generic unit-agnostic term.
Milestones are installed to provide
linear referencing points along the road. This can be used to reassure
travellers that the proper path is being followed, and to indicate either
distance travelled or the remaining distance to a destination. Such references are also used by maintenance engineers and emergency services to direct them to specific points where their presence is required. This term is sometimes used to denote a location on a road even if no physical sign is present. This is useful for
accident reporting and other record keeping (e.g., "an accident occurred at the 13-mile mark" even if the road is only marked with a stone once every 10 miles).
History
Roman Empire
Milestones (
Latin: ''Miliarium'') were originally
stone obelisks – made from
granite,
marble, or whatever local stone was available – and later
concrete posts. They were widely used by
Roman Empire road builders and were an important part of any
Roman road
Roman roads ( la, viae Romanae ; singular: ; meaning "Roman way") were physical infrastructure vital to the maintenance and development of the Roman state, and were built from about 300 BC through the expansion and consolidation of the Roman Re ...
network: the distance travelled per day was only a few miles in some cases. Many Roman milestones only record the name of the reigning emperor without giving any placenames or distances. The first Roman milestones appeared on the
Appian way. At the centre of Rome, the "
Golden Milestone" was erected to mark the presumed centre of the empire: this milestone has since been lost. The Golden Milestone inspired the
Zero Milestone in Washington, D.C., intended as the point from which all road distances in the United States should be reckoned.
Odometer
An odometer or odograph is an instrument used for measuring the distance traveled by a vehicle, such as a bicycle or car. The device may be electronic, mechanical, or a combination of the two (electromechanical). The noun derives from ancient Gr ...
s were used to measure the Roman milestone spacing, most likely based on
Ancient Greek technology.
Byzantine Empire
A mile-marker monument, the
Milion, was erected in the early 4th century AD in
Constantinople. It served as the starting point for measurement of distances for all the roads leading to the cities of the
Byzantine Empire, and had the same function as the
Milliarium Aureum of
Ancient Rome. The Milion survived intact until at least the late 15th century. Its fragments were discovered again in the late 1960s. A fragment is re-erected as a pillar.
Islamic civilization
In Islamic civilisation, use of milestone began in the first Islamic century. The Umayyad caliph Abd al-Malik bin Marwan laid the milestones along the paths that travelers used, and some were found in the city of Faiq in the Syrian Golan, which is, Faiq, one of the main road stations throughout the Islamic ages. The function of these stones was to guide travelers and introduce them to long distances, as the separation between one and the other was one mile. Many of these stones were found in more than one location, one in the Islamic Archeology Museum in Istanbul and another in the Jerusalem Museum. A translation of the text written on the stone currently found in the Kasserine Museum in the Golan reads as follows:
Post-Medieval Europe
In
Europe, the distance measured typically starts at specified point within a
city
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
or
town, as many roads were named for the towns at either end. For example, in
London,
United Kingdom, a plaque near the
Eleanor cross
The Eleanor crosses were a series of twelve tall and lavishly decorated stone monuments topped with crosses erected in a line down part of the east of England. King Edward I had them built between 1291 and about 1295 in memory of his beloved wi ...
at
Charing Cross
Charing Cross ( ) is a junction in Westminster, London, England, where six routes meet. Clockwise from north these are: the east side of Trafalgar Square leading to St Martin's Place and then Charing Cross Road; the Strand leading to the City; ...
is the reference point from which distances from London to other towns and cities are measured. In the UK, milestones are especially associated with
former turnpike roads.
The British built many milestones on the
island of Malta. They consisted of large slabs of local hard rock and they were engraved with the distance to or from a particular location. Many of these were defaced in
World War II to disorientate forces in a
potential invasion. Despite this, a very small number of milestones still exist undefaced, and one of these is now in the
Malta at War Museum.
India
The Kos Minars or ''Mile Pillars'' are medieval milestones that were made by the 16th-century
Afghan Ruler
Sher Shah Suri and later on by
Mughal
Mughal or Moghul may refer to:
Related to the Mughal Empire
* Mughal Empire of South Asia between the 16th and 19th centuries
* Mughal dynasty
* Mughal emperors
* Mughal people, a social group of Central and South Asia
* Mughal architecture
* Mug ...
emperors. These Minars were erected by the Mughal Emperors on the main highways across the empire to mark the distance.
The Kos Minar is a solid round pillar, around in height that stands on a masonry platform built with bricks and plastered over with lime. Though not architecturally very impressive, being milestones, they were an important part of communication and travel in a large empire.
Kos is an ancient
Indian unit of distance. It can represent either a distance of approximately or .
Minar is a Persian word for tower.
Abul Fazl recorded in ''
Akbar Nama'' that in the year 1575 AD,
Akbar
Abu'l-Fath Jalal-ud-din Muhammad Akbar (25 October 1542 – 27 October 1605), popularly known as Akbar the Great ( fa, ), and also as Akbar I (), was the third Mughal emperor, who reigned from 1556 to 1605. Akbar succeeded his father, Hum ...
issued an order that at every Kos on the way from Agra to Ajmer, a pillar or a minar should be erected for the comfort of the travelers.
Modern highways
The historical term ''milestone'' is still used today, even though the "stones" are typically metal
highway location markers and in most countries use kilometres and metres rather miles and yards. Also found today are more closely spaced signs containing fractional numbers, and signs along railways, beaches and canals.
Australia
Metrication in Australia caused the former mile markers to be gradually replaced with 10 km markers on highways and country roads, which are referred to as "kilometre plates".
Kilometre plates have white text on a trapezoidal green background, and are generally located about a metre above the ground. They have a letter which indicates the town or city they are referring to, and a number, which is the distance in kilometres to that town or city.
Kilometre plates are now generally 5 km apart on major highways and 10 or 20 km apart on less popular or rural highways, though there are many exceptions. Kilometre plates are supplemented by signboards, which display distances to several towns ahead.
Some mile markers are retained as curiosities (see gallery). These include stone markers on Victoria's Glenelg Highway at Delacombe,
Canada
Usage varies by province, as highways are under provincial jurisdiction. In Alberta, for example, kilometre markers are green metal signs with white lettering, and are generally placed every 4 km starting at the last major intersection to the south or west, depending on whether the route runs north–south or east–west.
India
Milestones on
National highways of India typically have white backgrounds with yellow tops (on national highways) or green tops (on state highways). The names of cities and distances are painted in black. The names of the nearest towns and cities are written along with distance in kilometres. On undivided highways, both sides of the milestones are used, telling the distance to the nearest cities in each direction. The highway number is written on the head of the milestone. The sum of the distances of two nearest cities in each direction from the milestone is listed on the side.
Philippines
Milestones in the Philippines are found in
highways, one kilometer apart, and are found in pairs, one on each side of the road. These are short yellow concrete posts, with two labels on a white background, written in black. On top is a large "K" (or "KM"), and a number, referencing the distance from the
Kilometer Zero. While the national Kilometer Zero is in
Rizal Park, each major island has its own Kilometer Zero. The milestones on the
Luzon mainland reference Rizal Park's Kilometer Zero.
The second label is a letter, standing for the first letter of the next town if you're traveling on that direction, then the distance in kilometers, from the town. In the example to the left, a milestone in
Ortigas Avenue in
Pasig says it is from Rizal Park, and from
Cainta. On the other side, the milestone there says it's
from
San Juan San Juan, Spanish for Saint John, may refer to:
Places Argentina
* San Juan Province, Argentina
* San Juan, Argentina, the capital of that province
* San Juan, Salta, a village in Iruya, Salta Province
* San Juan (Buenos Aires Underground), ...
.
Most milestones only have labels on one side, facing the driver. Others have labels on all four sides.
United Kingdom
In the UK,
driver location signs are placed every along each side of
motorways, and along some other major roads. They were first introduced in 2003, and they complement distance marker posts, small roadside posts at intervals, used for road maintenance and administrative purposes. Both types of sign display a unique location number. The number is given without units but is the distance in kilometres from a designated datum location for the road.
United States
In the U.S.
Interstate Highway System, the numbers usually measure the distance to the southern or western
state line, or the route's terminus, if the national southern or western terminus lies in that state. The numbering system for other
highways varies by state; most use a system mirroring that of the Interstate System, other states, such as
Illinois,
California, and
Kentucky, use the
county line as the
zero mile marker, while others, including
Missouri, do not sign mile-markers at all (except on Interstates).
Arizona has a rather unique system, where a route's mileposts continue those from its original host. Often, the
exits are numbered according to the nearest milepost, known as the
mile-log system. From the beginning of the Interstate system until the mid-2000s, most Interstate highways had markers every mile. Since that time, many states have installed more markers every 0.25 mile, every 0.2 mile, or in some metro areas, every 0.1 mile. Some historic and
scenic routes – such as along the
Blue Ridge Parkway in
North Carolina and
Virginia and the
Overseas Highway of the
Florida Keys
The Florida Keys are a coral cay archipelago located off the southern coast of Florida, forming the southernmost part of the continental United States. They begin at the southeastern coast of the Florida peninsula, about south of Miami, and e ...
– use mileposts to mark points of interest or (in the cases of many businesses along the Overseas Highway) as a portion of their address.
Myanmar
In
Myanmar
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...
,
furlongs have been used at least until 2010 in conjunction with miles to indicate distances on highway signs, for example on the
Yangon-Mandalay Expressway.
Zimbabwe
Zimbabwean milestones are constructed of cast concrete painted white with the kilometre distance indented and painted black.
There is no distinction between state and national road-sign markings. They were originally sited every 500 metres by the
Rhodesian Ministry of Roads and Road Traffic, starting at zero from the largest town or city. In 1980 the Zimbabwean government began placing new markers 1 km apart and damaged or missing half kilometre markers were no longer replaced.
Railway mileposts
The
Railways Clauses Consolidation Act 1845 compels UK railway companies to provide their passengers with a means of determining the distance travelled (fares were set by distance at this time). Section 94 states:
Similar laws were passed in other countries. On the modern railway, these historical markers are still used as infrastructure reference points. At many points, the distances shown on the markers are based upon points no longer on the network – for example, distances measured via a closed line or from a junction which has subsequently been moved. Whole mileposts are usually supplemented by half and quarter posts. Structure signs often include the mileage to a fair degree of precision; in the UK, the
chain
A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A c ...
(equal to ) is the usual accuracy. In the U.S. and Canada, miles are "decimalized", so that, for example, there may be a "milepost 4.83" to mark a junction, crossing, bridge or tunnel.
In
metricated areas, the equivalent is the
kilometric point.
Boundaries
Surveyors
Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is ca ...
place milestones to mark the boundaries between the jurisdictions separated by borders. A series of such boundary markers exists at one mile (1.6 km) intervals along the
borders of the District of Columbia in the
United States.
Gallery
File:Milestone in the hedge near Corpusty, on B1149 Holt Road.jpg, Milestone near Corpusty
Corpusty is a village and former civil parish, now in the parish of Corpusty and Saxthorpe, in the North Norfolk district, in the county of Norfolk, England, situated on the River Bure. Corpusty is about sixteen miles from Norwich and six miles ...
on the B1149 in Norfolk
File:AD 1836 milestone.JPG, A milestone marked " A.D. 1836", on the B3306
The B3306, also known as the West Cornwall Coast Road, is a major road of southwestern Cornwall. It connects St Ives in the east to St Just in the west, and eventually joins the A30 road to the northeast of Sennen in the southwest of the Penwi ...
near Land's End Airport
Land's End Airport , situated near St Just in Penwith, west of Penzance, in Cornwall, is the most south westerly airport of mainland Britain. The airport is owned by the Isles of Scilly Steamship Company (ISSC). ISSC's subsidiary Land's End ...
File:Chellaston milestone.jpg, Milestone on the A514 in Chellaston, Derby
File:Broughton milestone.JPG, Milestone on the A5130 in Broughton, Milton Keynes
File:Trewellard milestone penwith cornwall.jpg, Milestone on the B3318 in Penwith, Cornwall
File:Potterne Milestone.JPG, Milestone on A360 near Potterne
Potterne is a village and civil parish in the county of Wiltshire, England. The village is south of Devizes and lies on the A360 which links Devizes to Salisbury. The civil parish includes the hamlet of Potterne Wick.
History
There is evide ...
, Wiltshire
File:A350 milestone.jpg, Milestone on A350
The Airbus A350 is a long-range, wide-body twin-engine jet airliner developed and produced by Airbus.
The first A350 design proposed by Airbus in 2004, in response to the Boeing 787 Dreamliner, would have been a development of the A330 w ...
in Longbridge Deverill, Wiltshire
File:Milestone, Township of Balterley, Staffordshire.JPG, Milestone on B5500, in the township of Balterley, Staffordshire
Staffordshire (; postal abbreviation Staffs.) is a landlocked county in the West Midlands region of England. It borders Cheshire to the northwest, Derbyshire and Leicestershire to the east, Warwickshire to the southeast, the West Midlands Cou ...
File:Fife milestone (B940) near Lathones.JPG, Milestone on the B940 near Lathones in Fife
Fife (, ; gd, Fìobha, ; sco, Fife) is a council area, historic county, registration county and lieutenancy area of Scotland. It is situated between the Firth of Tay and the Firth of Forth, with inland boundaries with Perth and Kinross (i ...
, Scotland
File:Milestone on Sutton High Street.jpg, Milestone on Sutton High Street, Sutton, London
Sutton is the principal town in the London Borough of Sutton in South London, England. It lies on the lower slopes of the North Downs, and is the administrative headquarters of the Outer London borough. It is south-south west of Charing Cross ...
File:Milestone, Rod Moor Road.jpg, Milestone on Rod Moor Road, Dronfield, Derbyshire, UK
File:Milestone Batemans Bay NSW 18.JPG, Milepost 18 from Batemans Bay, New South Wales, now preserved in the town.
File:Skanderborg milestone.JPG, A milestone with royal cypher of Frederick VII in Skanderborg Dyrehave
File:Haridwar Holy Ganges En Route Milestone.jpg, A milestone near Haridwar on an Indian highway
File:Milestone on NH 309 A, India.jpg, A Milestone on NH309A in Uttarakhand, India.
File:C Milestone023.jpg, A milestone at Milestone in County Tipperary
File:MilestoneDublin1Howth8.jpg, A milestone in North Strand Dublin, marking one mile along the roads to Howth and Malahide
File:Milestone on N71 Cork-Skibbereen - main.jpg, Cast iron milestone on N71 in County Cork
File:Milestone, Mountbellow (geograph 5365674).jpg, A milestone in Mountbellew
Mountbellew or Mountbellew Bridge (historically ''Creggaun'', from ) is a town in County Galway, Ireland. It lies mostly within the townland of Treanrevagh (''Trian Riabhach'') on the N63 national primary road.
The town has a population of ap ...
, County Galway
"Righteousness and Justice"
, anthem = ()
, image_map = Island of Ireland location map Galway.svg
, map_caption = Location in Ireland
, area_footnotes =
, area_total_km2 = ...
File:Malta - Mellieha - Triq Selmun 04 ies.jpg, A defaced milestone in Mellieħa
File:Malta - Swieqi - Triq il-Madliena 02 ies.jpg, A defaced milestone in Swieqi
File:North Smithfield milestone.JPG, 1774 Caleb Aldrich milestone on Great Road in Rhode Island, United States
File:Union village milestone.JPG, Peleg Arnold's 1774 milestone on Great Road in Rhode Island, United States
File:Upper Post Road MP 8.jpg, Milestone 8 on the Upper Boston Post Road
The Boston Post Road was a system of mail-delivery routes between New York City and Boston, Massachusetts that evolved into one of the first major highways in the United States.
The three major alignments were the Lower Post Road (now U.S. Ro ...
in Harvard Square
Harvard Square is a triangular plaza at the intersection of Massachusetts Avenue, Brattle Street and John F. Kennedy Street near the center of Cambridge, Massachusetts, United States. The term "Harvard Square" is also used to delineate the busin ...
, Massachusetts, United States
File:Boundary Stone (District of Columbia) NE 2.jpg, Milestone along the boundary of the original District of Columbia set in 1792 and now marking the boundary between Washington, D.C., and Maryland in the United States.
File:KingstonMA GraniteMileMarker 20170521 (35563329673).jpg, Historic granite milestone in Kingston, Massachusetts marking the 42nd parallel.
See also
*
Boundary marker
*
Exit number
*
Ichirizuka
are historic Japanese distance markers akin to milestones. Comprising a pair of earthen mounds (''tsuka'' or ''zuka'') covered in trees and flanking the road, they denoted the distance in '' ri'' () to Nihonbashi, the "Bridge of Japan", erected ...
*
Highway location marker
*
Kilometre zero
In many countries, kilometre zero (also written ''km 0'') or similar terms in other languages (also known as zero mile marker, zero milepost, control stations or control points) denote a particular location (usually in the nation's capital cit ...
*
Milepost equation
*
Parting stone
A parting stone is a monument, usually of stone, to either:
# Provide direction at a fork in the road—a ''parting'' of the way, or
# Commemorate a final parting, as from a loved one.
Directions
alt=Roxbury Parting Stone of 1744, upright=.7, T ...
*
Reassurance marker – a road sign with a route number, but no distance
*
Survey marker
Survey markers, also called survey marks, survey monuments, or geodetic marks, are objects placed to mark key survey points on the Earth's surface. They are used in geodetic and land surveying. A ''benchmark'' is a type of survey marker that i ...
*
Waymarking
References
External links
*
Milestone in Ayrshire, ScotlandThe Milestone Society UKmilestones on the Thames & Severn Canal and more than 41 other canals)
map of milestones mid Gloucestershire UK(including old fingerposts)
*
ttp://archeolyon.araire.org/Bornemil/Milrepertoire.html Inventory of Roman milestones in France (in French)Section 2D.46of the U.S.
Manual on Uniform Traffic Control Devices
MileStonesGurus a weblog pictures project with only milestones with an equal KM point
{{Authority control
*