Urban density is a concept used in urban planning , urban studies , and related fields to describe the intensity of people, jobs, housing units, total floor area of buildings, or some other measure of human occupation, activity, and development across a defined unit of area. In general terms, urban density describes the degree of concentration or compactness of people or development in a city. As such it is to be distinguished from other measures of population density . Urban density is considered an important factor in understanding how cities function. Research related to urban density occurs across diverse areas, including economics, health, innovation, psychology and geography as well as sustainability .
42-646: Woodley Park station (also known as Woodley Park–Zoo/Adams Morgan ) is an underground station on the Red Line of the Washington Metro . Located at 24th Street and Connecticut Avenue Northwest , it serves the neighborhoods of Woodley Park and Adams Morgan in Northwest Washington. Woodley Park was the first in the system to deviate from the waffle -like coffers found at most underground stations in downtown Washington, instead using
84-525: A pylon station . The first deep column station in the world is Mayakovskaya , opened in 1938 in Moscow. One variety of column station is the "column-wall station". In such stations, some of the spaces between the columns are replaced with walls. In this way, the resistance to earth pressure is improved in difficult ground environments. Examples of such stations in Moscow are Krestyanskaya Zastava and Dubrovka . In Saint Petersburg , Komendantsky Prospekt
126-428: A direct correlation between urban density and air pollution. Others, such as Randal O'Toole of the libertarian Cato Institute , point to how raising densities results in more expensive real estate, greater road congestion, and more localized air pollution. At a broader level, there is evidence to indicate a strong negative correlation between the total energy consumption of a city and its overall urban density, i.e.
168-564: A disabled or troubled train. A subway station may provide additional facilities, such as toilets , kiosks and amenities for staff and security services, such as Transit police . Some metro stations are interchanges , serving to transfer passengers between lines or transport systems. The platforms may be multi-level. Transfer stations handle more passengers than regular stations, with additional connecting tunnels and larger concourses to reduce walking times and manage crowd flows. In some stations, especially where trains are fully automated ,
210-499: A simpler four- coffer arch. The advantage of the four-coffer arch was that it was pre-cast in Winchester, Virginia , and then hauled underground and installed on-site, while the waffle-style arches used in other stations had to be cast in place. This was done as a cost-saving measure. Access to the station's mezzanine is provided by two sets of three escalators, connected by a short walkway just underneath street level. The entrance
252-416: A subtitle. On November 3, 2004, an out-of-service train rolled backwards into the station and collided with an in-service train. The non-fatal collision injured about 20 people and caused $ 3.5 million in damages. An investigation determined that the operator of the runaway train was likely asleep. The original escalators were replaced in 2015–18. Metro station A metro station or subway station
294-537: A vast number of economic outcomes of urban density concluded that urban density had net positive effects. However, there may be some regressive distributional effects. It is commonly asserted that higher-density cities are more sustainable than low-density cities. This is because they reduce urban sprawl, minimize land use, and make services and infrastructure more efficient and accessible to residents. Much urban planning theory - particularly in North America,
336-703: A vertical rise of 102 feet (31 m); they are the longest in the District of Columbia and the third longest on the Metrorail system (behind Wheaton and Bethesda ). The station opened on December 5, 1981. Its opening coincided with the completion of 2.1 miles (3.4 km) of rail northwest of the Dupont Circle station and the opening of the Cleveland Park and Van Ness–UDC stations. Originally known as simply "Zoological Park", in 1979 its name
378-534: Is a train station for a rapid transit system, which as a whole is usually called a "metro" or "subway". A station provides a means for passengers to purchase tickets , board trains, and evacuate the system in the case of an emergency. In the United Kingdom, they are known as underground stations , most commonly used in reference to the London Underground . The location of a metro station
420-416: Is a type of subway station consisting of a central hall with two side halls connected by ring-like passages between a row of columns. Depending on the type of station, the rings transmit load to the columns either by "wedged arches" or through Purlins , forming a "column-purlin complex". The fundamental advantage of the column station is the significantly greater connection between the halls, compared with
462-410: Is an example. The pylon station is a type of deep underground subway station. The basic distinguishing characteristic of the pylon station is the manner of division of the central hall from the station tunnels The pylon station consists of three separate halls, separated from each other by a row of pylons with passages between them. The independence of the halls allows the architectural form of
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#1732794006027504-493: Is at the expense of character. Metro stations usually feature prominent poster and video advertising, especially at locations where people are waiting, producing an alternative revenue stream for the operator . The shallow column station is a type of construction of subway stations, with the distinguishing feature being an abundance of supplementary supports for the underground cavity. Most designs employ metal columns or concrete and steel columns arranged in lines parallel to
546-400: Is carefully planned to provide easy access to important urban facilities such as roads, commercial centres, major buildings and other transport nodes . Most stations are located underground, with entrances/exits leading up to ground or street level. The bulk of the station is typically positioned under land reserved for public thoroughfares or parks . Placing the station underground reduces
588-787: Is decorated with tiles spelling the Déclaration des Droits de l'Homme et du Citoyen . Every metro station in Valencia , Spain has a different sculpture on the ticket-hall level. Alameda station is decorated with fragments of white tile, like the dominant style of the Ciutat de les Arts i les Ciències . Each of the original four stations in the Olympic Green on Line 8 of the Beijing Subway are decorated in Olympic styles, while
630-422: Is divided into an unpaid zone connected to the street, and a paid zone connected to the train platforms. The ticket barrier allows passengers with valid tickets to pass between these zones. The barrier may be operated by staff or more typically with automated turnstiles or gates that open when a transit pass is scanned or detected. Some metro systems dispense with paid zones and validate tickets with staff in
672-550: Is famous for its Art Nouveau station entrances; while the Athens Metro is known for its display of archeological relics found during construction. However, it is not always the case that metro designers strive to make all stations artistically unique. Sir Norman Foster 's new system in Bilbao , Spain uses the same modern architecture at every station to make navigation easier for the passenger, though some may argue that this
714-475: Is located at the southwest corner of Connecticut Avenue and Woodley Road. An elevator connects to the street with the mezzanine, which contains fare control and access to the island platform . Like other stations on the Red Line constructed with rock-tunneling methods, it is rather deep, at 150 feet (46 m) below ground. After Forest Glen , it is the second deepest station in the system. The escalators have
756-658: Is only one vault (hence the name). The first single-vault stations were built in Leningrad in 1975: Politekhnicheskaya and Ploshchad Muzhestva . Not long after, the first two-level single-vault transfer stations were opened in Washington DC in 1976: L'Enfant Plaza , Metro Center and Gallery Place . In the Moscow Metro there is only one deep underground single-vault station, Timiryazevskaya , in addition to several single-vault stations at shallow depth. In
798-477: The Mexico City Metro is prominently identified by a unique icon in addition to its name, because the city had high illiteracy rates at the time the system was designed. Some metro systems, such as those of Naples , Stockholm , Moscow , St. Petersburg , Tashkent , Kyiv , Montreal , Lisbon , Kaohsiung and Prague are famous for their beautiful architecture and public art . The Paris Métro
840-684: The Montreal Metro . In Prague Metro , there are two underground stations built as single-vault, Kobylisy and Petřiny . In the Bucharest Metro , Titan station is built in this method. The cavern station is a metro station built directly inside a cavern . Many stations of the Stockholm Metro , especially on the Blue line, were built in man-made caverns; instead of being enclosed in a tunnel, these stations are built to expose
882-570: The Moscow Metro , typical pylon station are Kievskaya-Koltsevaya , Smolenskaya of the Arbatsko-Pokrovskaya line, Oktyabrskaya-Koltsevaya , and others. In the Saint Petersburg Metro , pylon stations include Ploshchad Lenina , Pushkinskaya , Narvskaya , Gorkovskaya , Moskovskie Vorota , and others. The construction of a single-vault station consists of a single wide and high underground hall, in which there
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#1732794006027924-561: The Nizhny Novgorod Metro there are four such stations: Park Kultury , Leninskaya , Chkalovskaya and Kanavinskaya . In the Saint Petersburg Metro all single-vault stations are deep underground, for example Ozerki , Chornaya Rechka , Obukhovo , Chkalovskaya , and others. Most of the underground stations of the Washington, D.C.'s Metro system are single-vault designs, as are all the single-line vaulted stations in
966-539: The 1960s and 1970s, but in Saint Petersburg , because of the difficult soil conditions and dense building in the centre of the city this was impossible. The Saint Petersburg Metro has only five shallow-depth stations altogether, with three of them having the column design: Avtovo , Leninsky Prospekt , and Prospekt Veteranov . The first of these is less typical, as it is buried at a significant depth, and has only one surface vestibule. A deep column station
1008-599: The UK, Australia, and New Zealand - has been developed premised on raising urban densities, such as New Urbanism , transit-oriented development , and smart growth . This assertion, however, remains a contested or challenged one. The link between urban density and aspects of sustainability remains a contested area of planning theory. Jan Gehl , prominent Urban Designer and expert on sustainable urbanism , argues that low-density, dispersed cities are unsustainable as they are automobile dependent . NASA, for example, has established
1050-466: The bedrock in which they are excavated. The Stockholm Metro also has a depot facility built in a cavern system. In the Hong Kong MTR , examples of stations built into caverns include Tai Koo station on Hong Kong Island , Other examples in the city include Sai Wan Ho, Sai Ying Pun, Hong Kong University and Lei Tung stations. Urban density A 2019 meta-analysis of 180 studies on
1092-444: The central and side halls to be differentiated. This is especially characteristic in the non-metro Jerusalem–Yitzhak Navon railway station , constructed as a pylon station due to its 80-meter depth, where the platform halls are built to superficially resemble an outdoor train station. Building stations of the pylon type is preferable in difficult geological situations, as such a station is better able to oppose earth pressure. However,
1134-519: The density of urban areas: A 2019 meta-analysis of 180 studies on a vast number of economic outcomes of urban density concluded that urban density had net positive effects. However, there may be some regressive distributional effects. A 2020 study concluded that urban density "boosts productivity and innovation, improves access to goods and services, reduces typical travel distances, encourages energy efficient construction and transport, and allows broader sharing of scarce urban amenities. However, density
1176-541: The downtown stations are decorated traditionally with elements of Chinese culture. On the Tyne and Wear Metro , the station at Newcastle United 's home ground St James' Park is decorated in the clubs famous black and white stripes. Each station of the Red Line and Purple Line subway in Los Angeles was built with different artwork and decorating schemes, such as murals, tile artwork and sculptural benches. Every station of
1218-452: The entire platform is screened from the track by a wall, typically of glass, with automatic platform-edge doors (PEDs). These open, like elevator doors, only when a train is stopped, and thus eliminate the hazard that a passenger will accidentally fall (or deliberately jump ) onto the tracks and be run over or electrocuted . Control over ventilation of the platform is also improved, allowing it to be heated or cooled without having to do
1260-453: The former USSR there is currently only one such station: Arsenalna in Kyiv . In Jerusalem, two planned underground heavy rail stations, Jerusalem–Central and Jerusalem–Khan , will be built this way. In Moscow, there were such stations, but they have since been rebuilt: Lubyanka and Chistiye Prudy are now ordinary pylon stations, and Paveletskaya-Radialnaya is now a column station. In
1302-447: The level of the train tracks. The physical, visual and economic impact of the station and its operations will be greater. Planners will often take metro lines or parts of lines at or above ground where urban density decreases, extending the system further for less cost. Metros are most commonly used in urban cities, with great populations. Alternatively, a preexisting railway land corridor is re-purposed for rapid transit. At street level
Woodley Park station - Misplaced Pages Continue
1344-409: The limited number of narrow passages limits the throughput between the halls. The pylon station was the earliest type of deep underground station. One variation is the so-called London-style station. In such stations the central hall is reduced to the size of an anteroom, leading to the inclined walkway or elevators. In some cases the anteroom is also the base of the escalators. In the countries of
1386-408: The logo of the metro company marks the entrances/exits of the station. Usually, signage shows the name of the station and describes the facilities of the station and the system it serves. Often there are several entrances for one station, saving pedestrians from needing to cross a street and reducing crowding. A metro station typically provides ticket vending and ticket validating systems. The station
1428-461: The long axis of the station. Stations can be double-span with a single row of columns, triple-span with two rows of columns, or multi-span. The typical shallow column station in Russia is triple-span, assembled from concrete and steel, and is from 102 to 164 metres in length with a column spacing of 4–6 m. Along with the typical stations, there are also specially built stations. For example, one of
1470-423: The lower the density, the more energy consumed. The location and urban setting where densification processes occur therefore need to be considered for sustainable densification. Urban density is a very specific measurement of the population of an urbanized area, excluding non-urban land-uses. Non-urban uses include regional open space, agriculture and water-bodies. There are a variety of other ways of measuring
1512-409: The outside area occupied by the station, allowing vehicles and pedestrians to continue using the ground-level area in a similar way as before the station's construction. This is especially important where the station is serving high-density urban precincts, where ground-level spaces are already heavily utilised. In other cases, a station may be elevated above a road, or at ground level depending on
1554-481: The same for the tunnels. The doors add cost and complexity to the system, and trains may have to approach the station more slowly so they can stop in accurate alignment with them. Metro stations, more so than railway and bus stations, often have a characteristic artistic design that can identify each stop. Some have sculptures or frescoes. For example, London's Baker Street station is adorned with tiles depicting Sherlock Holmes . The tunnel for Paris' Concorde station
1596-792: The spans may be replaced with a monolithic vault (as in the Moskovskaya station of the Samara Metro or Sibirskaya of the Novosibirsk Metro ). In some cases, one of the rows of columns may be replaced with a load-bearing wall. Such a dual hall, one-span station, Kashirskaya , was constructed to provide a convenient cross-platform transfer. Recently, stations have appeared with monolithic concrete and steel instead of assembled pieces, as Ploshchad Tukaya in Kazan . The typical shallow column station has two vestibules at both ends of
1638-538: The station, most often combined with below-street crossings. For many metro systems outside Russia, the typical column station is a two-span station with metal columns, as in New York City, Berlin, and others. In Chicago, underground stations of the Chicago 'L' are three-span stations if constructed with a centre platform. In the Moscow Metro , approximately half of the stations are of shallow depth, built in
1680-401: The station. This is resolved with elevators, taking a number of people from street level to the unpaid ticketing area, and then from the paid area to the platform. In addition, there will be stringent requirements for emergencies, with backup lighting , emergency exits and alarm systems installed and maintained. Stations are a critical part of the evacuation route for passengers escaping from
1722-529: The train carriages. Access from the street to ticketing and the train platform is provided by stairs , concourses , escalators , elevators and tunnels. The station will be designed to minimise overcrowding and improve flow, sometimes by designating tunnels as one way. Permanent or temporary barriers may be used to manage crowds. Some metro stations have direct connections to important nearby buildings (see underground city ). Most jurisdictions mandate that people with disabilities must have unassisted use of
Woodley Park station - Misplaced Pages Continue
1764-512: Was changed to "Woodley Park–Zoo" because neighbors believed that the name was misleading, as the National Zoological Park is located 0.5 miles (0.8 km) from the station. The Adams Morgan neighborhood lies at the other end of the nearby Duke Ellington Bridge , and "Adams Morgan" was added to the station name in 1999 to reflect this. On November 3, 2011, the station was renamed to "Woodley Park", with "Zoo/Adams Morgan" as
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