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95-486: BWI Rail Station (signed as BWI Thurgood Marshall Airport ) is an intermodal passenger station in Linthicum, Maryland near Baltimore/Washington International Airport (BWI). It is served by Amtrak Northeast Corridor intercity trains, MARC Penn Line regional rail trains, and several local bus lines. The station is located just over a mile from the airport's terminal. It was the first intercity rail station in

190-719: A subway was built through tunnels under the Hudson, now called the PATH , a station stop was added to Hoboken Terminal. More recently, the New Jersey Transit 's Hudson-Bergen Light Rail system has included a stop there. Ferry service has recently been revived, but passengers must exit the terminal and walk across the pier to the more modest ferry slip. With the opening of the Woodside and Birkenhead Dock Street Tramway in 1873, Birkenhead Dock railway station probably became

285-425: A body of water), which are potential congestion sites but also offer an opportunity for transfers between lines. Ring lines provide good coverage, connect between the radial lines and serve tangential trips that would otherwise need to cross the typically congested core of the network. A rough grid pattern can offer a wide variety of routes while still maintaining reasonable speed and frequency of service. A study of

380-464: A car can cut costs for fuel and parking, and some families no longer need to own and operate multiple cars. Environmental benefits can also increase (i.e. less pollution) and reduced traffic congestion can deliver significant cost savings to the city and local government. Many transit agencies have begun installing bike racks on the front of buses, as well as in the interior of buses, trains, and even on ferries. These transit bike racks allow cyclists

475-469: A certain degree of coordination, scheduling issues with mass transit can often be an issue. For example, a sometimes-late train can be an annoyance, and an often-late train can make a commute impractical. Weather can also be a factor. Even when the use of an automobile is involved, the transition from one mode of transportation to another often exposes commuters to the elements. As a result, multi-mode commuters often travel prepared for inclement weather. In

570-454: A code for its stations. Unlike that of Singapore's MRT, it is mostly numbers. Based on the line number, for example Sinyongsan station, is coded as station 429. Being on Line 4, the first number of the station code is 4. The last two numbers are the station number on that line. Interchange stations can have multiple codes. Like City Hall station in Seoul which is served by Line 1 and Line 2. It has

665-651: A code of 132 and 201 respectively. The Line 2 is a circle line and the first stop is City Hall, therefore, City Hall has the station code of 201. For lines without a number like Bundang line it will have an alphanumeric code. Lines without a number that are operated by KORAIL will start with the letter 'K'. With widespread use of the Internet and cell phones globally, transit operators now use these technologies to present information to their users. In addition to online maps and timetables, some transit operators now offer real-time information which allows passengers to know when

760-583: A conventional track is often provided in case of flat tires and for switching . There are also some rubber-tired systems that use a central guide rail , such as the Sapporo Municipal Subway and the NeoVal system in Rennes , France. Advocates of this system note that it is much quieter than conventional steel-wheeled trains, and allows for greater inclines given the increased traction of

855-405: A dedicated right-of-way are typically used only outside dense areas, since they create a physical barrier in the urban fabric that hinders the flow of people and vehicles across their path and have a larger physical footprint. This method of construction is the cheapest as long as land values are low. It is often used for new systems in areas that are planned to fill up with buildings after the line

950-418: A large number of factors, including geographical barriers, existing or expected travel patterns, construction costs, politics, and historical constraints. A transit system is expected to serve an area of land with a set of lines , which consist of shapes summarized as "I", "L", "U", "S", and "O" shapes or loops. Geographical barriers may cause chokepoints where transit lines must converge (for example, to cross

1045-652: A large part of the network, for example, in outer suburbs, runs at ground level. In most of Britain , a subway is a pedestrian underpass . The terms Underground and Tube are used for the London Underground . The North East England Tyne and Wear Metro , mostly overground, is known as the Metro . In Scotland , the Glasgow Subway underground rapid transit system is known as the Subway . In Ireland ,

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1140-403: A large role in mixed mode commuting. Rapid transit such as express bus or light rail may cover most of the distance, but sit too far out from commute endpoints. At 3 mph walking, 2 miles represents about 40 minutes of commute time; whereas a bicycle may pace 12 mph leisurely, cutting this time to 10 minutes. When the commuter finds the distance between the originating endpoint (e.g.

1235-452: A line is obtained by multiplying the car capacity, the train length, and the service frequency . Heavy rapid transit trains might have six to twelve cars, while lighter systems may use four or fewer. Cars have a capacity of 100 to 150 passengers, varying with the seated to standing ratio  – more standing gives higher capacity. The minimum time interval between trains is shorter for rapid transit than for mainline railways owing to

1330-553: A location further out than practical walking distance but not more than practical cycling distance to reduce housing costs. Similarly, a commuter can close an even further distance quickly with an ebike , motorcycle, or car, allowing for the selection of a more preferred living area somewhat further from the station than would be viable by walking or simple bicycle. Other cost advantages of mixed mode commuting include lower vehicle insurance via Pay As You Drive programs; lower fuel and maintenance costs; and increased automobile life. In

1425-411: A major role in providing door-to-door service between airports or train stations and other points of travel throughout urban , suburban , and rural communities. (Automobiles can also be used as the centerpiece of a multi-mode commute, with drivers resorting to walking or cycling to their final destination. Commuters to major cities take this route when driving is convenient, but parking options at

1520-615: A metro. In Spain, such systems are present in Madrid , Barcelona , Bilbao and Valencia . In Portugal, Lisbon has a metro. The Italian cities of Catania , Genoa , Milan , Naples , Rome and Turin also have metro lines. In Germany and Austria they rapid transit is known as U-Bahn , which are often supported by S-Bahn systems. In Germany, U-Bahn systems exist in Berlin , Hamburg , Munich and Nuremberg , while in Austria such

1615-795: A new facility, as at the William F. Walsh Regional Transportation Center in Syracuse, New York , or South Station in Boston, Massachusetts . In other cases new facilities, such as the Alewife Station In Cambridge, Massachusetts , were built from the start to emphasize intermodalism. Regional transit systems in the United States often include regional intermodal transit centers that incorporate multiple types of rail and bus services alongside park and ride amenities. Until

1710-791: A passenger ferry. Prior to the widespread use of automobiles, the San Francisco Bay Area featured a complex network of ferry services which connected numerous interurban and streetcar systems in the North and East Bay to the San Francisco Ferry Building , where several city streetcar lines began service. The opening of the rail-carrying San Francisco–Oakland Bay Bridge and automotive Golden Gate Bridge almost entirely supplanted these services. Sonoma–Marin Area Rail Transit commuter rail

1805-418: A single-mode form of transit, they also find use in a variety of mixed-mode scenarios. They can provide a short commute to train stations, airports, and piers, where all-day " park and ride " lots are often available. Used in this context, cars offer commuters the relative comfort of single-mode travel, while significantly reducing the financial and environmental costs. Taxicabs and rental cars also play

1900-565: A specialized transit police may be established. These security measures are normally integrated with measures to protect revenue by checking that passengers are not travelling without paying. Some subway systems, such as the Beijing Subway , which is ranked by Worldwide Rapid Transit Data as the "World's Safest Rapid Transit Network" in 2015, incorporates airport-style security checkpoints at every station. Rapid transit systems have been subject to terrorism with many casualties, such as

1995-464: A specific example of this; feeder buses service local neighbourhoods by taking travellers from their homes to nearby train stations which is important if the distances are too far to comfortably walk; at the end of the working day the buses take the travellers home again. Feeder buses work best when they are scheduled to arrive at the railway station shortly before the train arrives allowing enough time for commuters to comfortably walk to their train, and on

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2090-608: A system exists in Vienna . In addition, the small, car-free town of Serfaus in the Austrian state of Tyrol also features a short U-Bahn line. There are no U-Bahn systems in the German-speaking part of Switzerland, but the city of Lausanne has its own, small metro system. In Zurich, Switzerland's largest city, a project for a U-Bahn network was stopped by a referendum in the 1970s and instead its S-Bahn system

2185-505: A ticketing desk, waiting room, and a concessions area. The adjacent parking garage is used by commuters who ride the train to work in Baltimore or Washington, and also contains the bus stop for shuttles to the BWI terminal. The garage was built in the late 1990s to replace a smaller surface lot. It contains 3,200 parking spaces and typically does not fill to capacity. The Carolinian served

2280-801: Is a shortened reference to a metropolitan area . Rapid transit systems such as the Washington Metrorail , Los Angeles Metro Rail , the Miami Metrorail , and the Montreal Metro are generally called the Metro . In Philadelphia , the term "El" is used for the Market–Frankford Line which runs mostly on an elevated track, while the term "subway" applies to the Broad Street Line which is almost entirely underground. Chicago 's commuter rail system that serves

2375-608: Is a single corporate image for the entire transit authority, but the rapid transit uses its own logo that fits into the profile. A transit map is a topological map or schematic diagram used to show the routes and stations in a public transport system. The main components are color-coded lines to indicate each line or service, with named icons to indicate stations. Maps may show only rapid transit or also include other modes of public transport. Transit maps can be found in transit vehicles, on platforms , elsewhere in stations, and in printed timetables . Maps help users understand

2470-892: Is a type of high-capacity public transport that is generally built in urban areas . A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway , tube , metro or underground . They are sometimes grade-separated on elevated railways , in which case some are referred to as el trains – short for "elevated" – or skytrains . Rapid transit systems are railways , usually electric , that unlike buses or trams operate on an exclusive right-of-way , which cannot be accessed by pedestrians or other vehicles. Modern services on rapid transit systems are provided on designated lines between stations typically using electric multiple units on railway tracks . Some systems use guided rubber tires , magnetic levitation ( maglev ), or monorail . The stations typically have high platforms, without steps inside

2565-506: Is built. Most rapid transit trains are electric multiple units with lengths from three to over ten cars. Crew sizes have decreased throughout history, with some modern systems now running completely unstaffed trains. Other trains continue to have drivers, even if their only role in normal operation is to open and close the doors of the trains at stations. Power is commonly delivered by a third rail or by overhead wires . The whole London Underground network uses fourth rail and others use

2660-701: Is expected to feature a connection with the Golden Gate Ferry and service to San Francisco Ferry Building at Larkspur Landing . The Hercules station is to be the first direct Amtrak -to-ferry transit hub in the San Francisco Bay . The Staten Island Railway , while operated by the Metropolitan Transportation Authority , does not have a physical connection to the rest of New York City 's rail network. As such, transfers to Manhattan are facilitated by

2755-416: Is necessary, rolling stock with a smaller loading gauge from one sub network may be transported along other lines that use larger trains. On some networks such operations are part of normal services. Most rapid transit systems use conventional standard gauge railway track . Since tracks in subway tunnels are not exposed to rain , snow , or other forms of precipitation , they are often fixed directly to

2850-431: Is often called "bike and ride". To safeguard against theft or vandalism of parked bicycles at these train, bus, and ferry stations, "bike and ride" transport benefits greatly from secure bicycle parking facilities such as bicycle parking stations being available. Some train, bus, and ferry systems allow commuters to take their bicycles aboard, allowing cyclists to ride at both ends of the commute, though sometimes this

2945-472: Is particularly of use in areas where trains may travel but automobiles cannot, such as the Channel Tunnel . Another system called NIMPR is designed to transport electric vehicles on high speed trains. A train ferry is a ship designed to carry railway vehicles. While usually used to carry freight vehicles, passenger cars can also be carried. In other places passengers move between passenger cars to

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3040-555: Is referred to simply as "the subway", despite 40% of the system running above ground. The term "L" or "El" is not used for elevated lines in general as the lines in the system are already designated with letters and numbers. The "L" train or L (New York City Subway service) refers specifically to the 14th Street–Canarsie Local line, and not other elevated trains. Similarly, the Toronto Subway is referred to as "the subway", with some of its system also running above ground. These are

3135-415: Is restricted to off-peak travel periods: in such cases, folding bicycles may be permitted where regular bicycles are not. In some cities, bicycles are permitted aboard trains and buses. In some cities a public bicycle rental programme allows commuters to take a public bike between the public transport station and a docking station near their origin or destination. The use of "bike and ride" instead of

3230-412: Is serviced by at least one specific route with trains stopping at all or some of the line's stations. Most systems operate several routes, and distinguish them by colors, names, numbering, or a combination thereof. Some lines may share track with each other for a portion of their route or operate solely on their own right-of-way. Often a line running through the city center forks into two or more branches in

3325-490: Is that turnstiles are located on the platforms between rail services in addition to on a separate concourse to allow for direct transfers. Millbrae Intermodal Terminal is also planned to be incorporated into the California High-Speed Rail project as one of two stations between San Francisco and San Jose . Mixed mode commuting combines the benefits of walking , bicycle commuting , or driving with

3420-748: Is the most commonly used term for underground rapid transit systems used by non-native English speakers. Rapid transit systems may be named after the medium by which passengers travel in busy central business districts ; the use of tunnels inspires names such as subway , underground , Untergrundbahn ( U-Bahn ) in German, or the Tunnelbana (T-bana) in Swedish. The use of viaducts inspires names such as elevated ( L or el ), skytrain , overhead , overground or Hochbahn in German. One of these terms may apply to an entire system, even if

3515-645: Is what is often termed "kiss and ride". Rather than drive to the train or bus station and park the commuter is driven to the station by a friend or relative (parent, spouse etc.) The "kiss" refers to the peck on the cheek as the commuter exits the car. Kiss and ride is usually conducted when the train/bus/ferry station is close to home, so that the driver dropping the commuter off has a short journey to and from home. Many large cities link their railway network to their bus network. This enables commuters to get to places that are not serviced directly by rail as they are often considered to be too far for walking. Feeder buses are

3610-463: Is working with Amtrak to ensure that the footbridge gets needed repairs. BWI Rail Station is located on Amtrak's Northeast Corridor , a 457-mile-long (735 km) rail line connecting Washington, D.C. , Philadelphia , New York , and Boston . Amtrak's Northeast Regional , Acela Express , Vermonter , and Palmetto , as well as the MARC Penn Line commuter rail service, stop at

3705-627: The Dublin Area Rapid Transit is despite the name considered a commuter rail due to usage of mainline railways. In France, large cities, such as Paris , Marseille and Lyon , feature a Métro . Also the smaller cities of Lille Rennes have a light metro. Furthermore, Brussels in Belgium, and Amsterdam and Rotterdam in the Netherlands have metro systems in place. Several Southern European contries also have

3800-752: The Hudson and Manhattan Railroad K-series cars from 1958, the New York City Subway R38 and R42 cars from the late-1960s, and the Nagoya Municipal Subway 3000 series , Osaka Municipal Subway 10 series and MTR M-Train EMUs from the 1970s, were generally only made possible largely due to the relatively generous loading gauges of these systems and also adequate open-air sections to dissipate hot air from these air conditioning units. Especially in some rapid transit systems such as

3895-429: The London Underground . In 1868, New York opened the elevated West Side and Yonkers Patent Railway , initially a cable-hauled line using stationary steam engines . As of 2021 , China has the largest number of rapid transit systems in the world  – 40 in number, running on over 4,500 km (2,800 mi) of track – and was responsible for most of the world's rapid-transit expansion in

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3990-789: The MTA began a $ 4.7 million project to rebuild and enlarge the station. A temporary station building was used during construction. The new station opened in October 2019, with a ribbon-cutting ceremony held in December. The renovation did not modify the Amtrak-owned footbridge, which has water leakage and cleanliness issues, nor add WiFi service in the MTA-owned waiting area. In response, the MTA said that it does not offer WiFi at any of its stations, but

4085-740: The Metropolitan Railway opened publicly in London in 1863. High capacity monorails with larger and longer trains can be classified as rapid transit systems. Such monorail systems recently started operating in Chongqing and São Paulo . Light metro is a subclass of rapid transit that has the speed and grade separation of a "full metro" but is designed for smaller passenger numbers. It often has smaller loading gauges, lighter train cars and smaller consists of typically two to four cars. Light metros are typically used as feeder lines into

4180-578: The Montreal Metro (opened 1966) and Sapporo Municipal Subway (opened 1971), their entirely enclosed nature due to their use of rubber-tyred technology to cope with heavy snowfall experienced by both cities in winter precludes any air-conditioning retrofits of rolling stock due to the risk of heating the tunnels to temperatures that would be too hot for passengers and for train operations. In many cities, metro networks consist of lines operating different sizes and types of vehicles. Although these sub-networks may not often be connected by track, in cases when it

4275-589: The Prague Metro . The London Underground and Paris Métro are densely built systems with a matrix of crisscrossing lines throughout the cities. The Chicago 'L' has most of its lines converging on The Loop , the main business, financial, and cultural area. Some systems have a circular line around the city center connecting to radially arranged outward lines, such as the Moscow Metro 's Koltsevaya Line and Beijing Subway 's Line 10 . The capacity of

4370-685: The Singapore MRT , Changi Airport MRT station has the alphanumeric code CG2, indicating its position as the 2nd station on the Changi Airport branch of the East West Line. Interchange stations have at least two codes, for example, Raffles Place MRT station has two codes, NS26 and EW14, the 26th station on the North South Line and the 14th station on the East West Line. The Seoul Metro is another example that utilizes

4465-453: The Toronto streetcar system or with airport shuttle buses which transports to bus, subway and rail connections at Union Station . Several passenger rail systems offer services that allow travelers to bring their automobiles with them. These usually consist of automobile carrying wagons attached to normal passenger trains, but some special trains operate solely to transport automobiles. This

4560-450: The deep tube lines . Historically, rapid transit trains used ceiling fans and openable windows to provide fresh air and piston-effect wind cooling to riders. From the 1950s to the 1990s (and in most of Europe until the 2000s), many rapid transit trains from that era were also fitted with forced-air ventilation systems in carriage ceiling units for passenger comfort. Early rapid transit rolling stock fitted with air conditioning , such as

4655-408: The free Staten Island Ferry . In recent years, an increasing emphasis has been placed on designing facilities that make such transfers easier and more seamless. These are intended to help passengers move from one mode (or form) of transportation to another. An intermodal station may service air, rail, and highway transportation for example. In some cases, facilities were merged or transferred into

4750-409: The linear motor for propulsion. Some urban rail lines are built to a loading gauge as large as that of main-line railways ; others are built to a smaller one and have tunnels that restrict the size and sometimes the shape of the train compartments. One example is most of the London Underground , which has acquired the informal term "tube train" due to the cylindrical shape of the trains used on

4845-432: The 15 world largest subway systems suggested a universal shape composed of a dense core with branches radiating from it. Rapid transit operators have often built up strong brands , often focused on easy recognition – to allow quick identification even in the vast array of signage found in large cities – combined with the desire to communicate speed, safety, and authority. In many cities, there

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4940-488: The 1995 Tokyo subway sarin gas attack and the 2005 " 7/7 " terrorist bombings on the London Underground. Some rapid transport trains have extra features such as wall sockets, cellular reception, typically using a leaky feeder in tunnels and DAS antennas in stations, as well as Wi-Fi connectivity. The first metro system in the world to enable full mobile phone reception in underground stations and tunnels

5035-621: The 2010s. The world's longest single-operator rapid transit system by route length is the Shanghai Metro . The world's largest single rapid transit service provider by number of stations (472 stations in total) is the New York City Subway . The busiest rapid transit systems in the world by annual ridership are the Shanghai Metro, Tokyo subway system , Seoul Metro and the Moscow Metro . The term Metro

5130-532: The 21st century, most new expansions and systems are located in Asia, with China becoming the world's leader in metro expansion, operating some of the largest and busiest systems while possessing almost 60 cities that are operating, constructing or planning a rapid transit system . Rapid transit is used for local transport in cities , agglomerations , and metropolitan areas to transport large numbers of people often short distances at high frequency . The extent of

5225-502: The United States fare integration is often lacking, making passengers "pay extra for the 'privilege' of having a connection". This is largely a non-issue in European cities where all modes of local public transit follow the same ticketing scheme and a ticket for e.g. the metro will be valid on buses or commuter rail. Rapid transit Rapid transit or mass rapid transit ( MRT ) or heavy rail , commonly referred to as metro ,

5320-476: The United States built to service an airport . A free shuttle bus runs between the station and the airport terminal at all hours. Although Penn Station is the Baltimore area's main intercity station, BWI Airport is a major station in its own right. It is Amtrak's sixth-busiest station in the Mid-Atlantic region (behind New York Penn , Washington , Philadelphia , Baltimore Penn, and Albany-Rensselaer ),

5415-606: The ability to ride their bicycle to the bus/train/ferry, take the mode of transportation, then ride again to their final destination. These types of racks combined with increased bike infrastructure and bike parking have made bike commuting a frequent topic of discussion by cities and local government. Many cities have extended subway or rail service to major urban airports. This provides travellers with an inexpensive, frequent and reliable way to get to their flights as opposed to driving or being driven, and contending with full up parking, or taking taxis and getting caught in traffic jams on

5510-507: The airport, without passing through customs and immigration control, effectively like having a transit from one flight to another. The airport is well-connected with expressways and an Airport Express train service. A seaport and logistics facilities will be added in the near future. Kansai International Airport is also connected to Kobe Airport with ferries. The Toronto Island ferry connects Billy Bishop Toronto City Airport to mainland Toronto , where passengers can connect to

5605-478: The beginning of rapid transit. Initial experiences with steam engines, despite ventilation, were unpleasant. Experiments with pneumatic railways failed in their extended adoption by cities. In 1890, the City & South London Railway was the first electric-traction rapid transit railway, which was also fully underground. Prior to opening, the line was to be called the "City and South London Subway", thus introducing

5700-448: The beginning or end of the journey. Trains offer quick transit from a suburb into an urban area, where passengers can choose a way to complete the trip. Most transportation modes have always been used intermodally; for example, people have used road or urban railway to an airport or inter-regional railway station. Intermodal transport has existed for about as long as passenger transport itself. People switched from carriages to ferries at

5795-400: The benefits of rapid transit while offsetting some of the major disadvantages of each. The use of a bicycle can, for example, make an (inexpensive compared to a car) 20 mile light-rail or suburban rail journey attractive even if the endpoints of the journey each sit 1 mile out from the stations: the 30 minutes walking time becomes 8 minutes bicycling. As in the example above, location plays

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5890-455: The commuters' return journey buses are scheduled to arrive shortly after the train arrives so that the buses are waiting to take the commuters home. If train and bus services are very frequent then this scheduling is unimportant as the commuter will in any case have a very short wait to interchange. All around the world bicycles are used to get to and from train and other public transportation stations; this form of intermodal passenger transport

5985-769: The completion of San Francisco Salesforce Transit Center , the Millbrae Intermodal Terminal in California is the largest intermodal transit center west of the Mississippi which includes direct on-platform connections between BART , the Bay Area's regional rail system, Caltrain , the San Francisco Peninsula's commuter rail, and SamTrans , the regional bus service for San Mateo County . The uniqueness of this transfer facility

6080-425: The destination are not readily available.) Transport planners often try to encourage automobile commuters to make much of their journey by public transport . One way of doing this is to provide car parking places at train or bus stations where commuters can drive to the station, park their cars and then continue on with their journey on the train or bus: this is often called "park and ride". Similar to park and ride

6175-414: The display of the transit network. Often this has the effect of compressing the distance between stations in the outer area of the system, and expanding distances between those close to the center. Some systems assign unique alphanumeric codes to each of their stations to help commuters identify them, which briefly encodes information about the line it is on, and its position on the line. For example, on

6270-531: The edge of a river too deep to ford. In the 19th century, people who lived inland switched from train to ship for overseas voyages. Hoboken Terminal in Hoboken, New Jersey , was built to let commuters to New York City from New Jersey switch to ferries to cross the Hudson River in order to get to Manhattan . A massive ferry slip , now in ruins, was incorporated into the terminal building. Later, when

6365-537: The entire metropolitan area is called Metra (short for Met ropolitan Ra il), while its rapid transit system that serves the city is called the "L" . Boston's subway system is known locally as "The T". In Atlanta , the Metropolitan Atlanta Rapid Transit Authority goes by the acronym "MARTA." In the San Francisco Bay Area , residents refer to Bay Area Rapid Transit by its acronym "BART". The New York City Subway

6460-516: The floor rather than resting on ballast , such as normal railway tracks. An alternate technology, using rubber tires on narrow concrete or steel roll ways , was pioneered on certain lines of the Paris Métro and Mexico City Metro , and the first completely new system to use it was in Montreal , Canada. On most of these networks, additional horizontal wheels are required for guidance, and

6555-496: The home) and the destination (e.g. the place of employment) too far to be enjoyable or practical, commute by car or motorcycle to the station may remain practical, as long as the commute from the far end station to the destination is practical by walking, a carry-on cycle, or another rapid transit such as a local or shuttle bus. In general, locations close to major transit such as rail stations carry higher land value and thus higher costs to rent or purchase. A commuter may select

6650-439: The interconnections between different parts of the system; for example, they show the interchange stations where passengers can transfer between lines. Unlike conventional maps, transit maps are usually not geographically accurate, but emphasize the topological connections among the different stations. The graphic presentation may use straight lines and fixed angles, and often a fixed minimum distance between stations, to simplify

6745-602: The lines of the Lyon Metro includes a section of rack (cog) railway , while the Carmelit , in Haifa, is an underground funicular . For elevated lines, another alternative is the monorail , which can be built either as straddle-beam monorails or as a suspended monorail . While monorails have never gained wide acceptance outside Japan, there are some such as Chongqing Rail Transit 's monorail lines which are widely used in

6840-557: The main rapid transit system. For instance, the Wenhu Line of the Taipei Metro serves many relatively sparse neighbourhoods and feeds into and complements the high capacity metro lines. Some systems have been built from scratch, others are reclaimed from former commuter rail or suburban tramway systems that have been upgraded, and often supplemented with an underground or elevated downtown section. Ground-level alignments with

6935-521: The most extreme cases, a mixed-mode commuter may opt to car share and pay only a small portion of purchase, fuel, maintenance, and insurance, or to live car-free . These cost benefits are offset by costs of transit, which can vary. A Maryland MTA month pass valid for MTA Light Rail, Metro Subway, and City Bus costs $ 64, while a month pass for the Baltimore to DC MARC costs $ 175.00 and a DC MetroRail 7 day pass costs $ 47 totaling $ 182. In most of Europe de:Verkehrsverbund and mode neutral pricing eliminate

7030-474: The need to have several different tickets for public transit across different modes. Mobility as a service intends to take this a step further, offering one price per trip from door to door, no matter which mode is used for which part of the trip. The effectiveness of a mixed-mode commute can be measured in many ways: speed to destination, convenience, security, environmental impact, and proximity to mass transit are all factors. Because mixed-mode commutes rely on

7125-418: The network map "readable" by illiterate people, this system has since become an "icon" of the system. Compared to other modes of transport, rapid transit has a good safety record, with few accidents. Rail transport is subject to strict safety regulations , with requirements for procedure and maintenance to minimize risk. Head-on collisions are rare due to use of double track, and low operating speeds reduce

7220-402: The next vehicle will arrive, and expected travel times. The standardized GTFS data format for transit information allows many third-party software developers to produce web and smartphone app programs which give passengers customized updates regarding specific transit lines and stations of interest. Mexico City Metro uses a unique pictogram for each station. Originally intended to help make

7315-958: The occurrence and severity of rear-end collisions and derailments . Fire is more of a danger underground, such as the King's Cross fire in London in November 1987, which killed 31 people. Systems are generally built to allow evacuation of trains at many places throughout the system. High platforms , usually over 1 meter / 3 feet, are a safety risk, as people falling onto the tracks have trouble climbing back. Platform screen doors are used on some systems to eliminate this danger. Rapid transit facilities are public spaces and may suffer from security problems: petty crimes , such as pickpocketing and baggage theft, and more serious violent crimes , as well as sexual assaults on tightly packed trains and platforms. Security measures include video surveillance , security guards , and conductors . In some countries

7410-603: The only two North American systems that are primarily called "subways". In most of Southeast Asia and in Taiwan , rapid transit systems are primarily known by the acronym MRT . The meaning varies from one country to another. In Indonesia , the acronym stands for Moda Raya Terpadu or Integrated Mass [Transit] Mode in English. In the Philippines , it stands for Metro Rail Transit . Two underground lines use

7505-587: The outset. Budapest , Chicago , Glasgow , Boston and New York City all converted or purpose-designed and built electric rail services. Advancements in technology have allowed new automated services. Hybrid solutions have also evolved, such as tram-train and premetro , which incorporate some of the features of rapid transit systems. In response to cost, engineering considerations and topological challenges some cities have opted to construct tram systems, particularly those in Australia, where density in cities

7600-908: The rapid transit system varies greatly between cities, with several transport strategies. Some systems may extend only to the limits of the inner city, or to its inner ring of suburbs with trains making frequent station stops. The outer suburbs may then be reached by a separate commuter rail network where more widely spaced stations allow higher speeds. In some cases the differences between urban rapid transit and suburban systems are not clear. Rapid transit systems may be supplemented by other systems such as trolleybuses , regular buses , trams , or commuter rail. This combination of transit modes serves to offset certain limitations of rapid transit such as limited stops and long walking distances between outside access points. Bus or tram feeder systems transport people to rapid transit stops. Each rapid transit system consists of one or more lines , or circuits. Each line

7695-542: The rubber tires. However, they have higher maintenance costs and are less energy efficient. They also lose traction when weather conditions are wet or icy, preventing above-ground use of the Montréal Metro and limiting it on the Sapporo Municipal Subway, but not rubber-tired systems in other cities. Some cities with steep hills incorporate mountain railway technologies in their metros. One of

7790-409: The station between 1991 and 2004. The 1,050 feet (320 m) high-level platforms were rebuilt and lengthened between 2006 and 2010. The existing structures were replaced with new precast concrete segments , and new signs, lights, shelters, railing, canopies, and benches were installed. In 2010, $ 9.4 million was allocated for design and engineering of a new station building and fourth track, which

7885-713: The station. Amtrak long distance trains, as well as some Northeast Regional and Acela Express trains, bypass the station. The station appears in Amtrak timetables as BWI Thurgood Marshall Airport . Unlike most major stations along the Northeast Corridor, it is not possible to check bags to and from BWI; it is the busiest Amtrak station without checked baggage service. Intermodal passenger transport Mixed-mode commuting often centers on one type of rapid transit , such as regional rail , to which low-speed options (i.e. bus , tram , or bicycle ) are appended at

7980-663: The suburbs, allowing a higher service frequency in the center. This arrangement is used by many systems, such as the Copenhagen Metro , the Milan Metro , the Oslo Metro , the Istanbul Metro and the New York City Subway . Alternatively, there may be a single central terminal (often shared with the central railway station), or multiple interchange stations between lines in the city center, for instance in

8075-714: The term subway . In Thailand , it stands for Metropolitan Rapid Transit , previously using the Mass Rapid Transit name. Outside of Southeast Asia, Kaohsiung and Taoyuan, Taiwan , have their own MRT systems which stands for Mass Rapid Transit , as with Singapore and Malaysia . In general rapid transit is a synonym for "metro" type transit, though sometimes rapid transit is defined to include "metro", commuter trains and grade separated light rail . Also high-capacity bus-based transit systems can have features similar to "metro" systems. The opening of London's steam-hauled Metropolitan Railway in 1863 marked

8170-467: The term Subway into railway terminology. Both railways, alongside others, were eventually merged into London Underground . The 1893 Liverpool Overhead Railway was designed to use electric traction from the outset. The technology quickly spread to other cities in Europe , the United States, Argentina, and Canada, with some railways being converted from steam and others being designed to be electric from

8265-522: The third-busiest in the Baltimore-Washington corridor, and the 12th busiest nationwide. First proposed in 1964 by Charles Adler , a Baltimore-based inventor of traffic and aircraft safety devices, the station was dedicated on October 23, 1980 – coincidentally, mere hours after Adler's death – and opened for Amtrak intercity and Conrail (now MARC) commuter trains three days later. The station's building houses

8360-511: The trains, requiring custom-made trains in order to minimize gaps between train and platform. They are typically integrated with other public transport and often operated by the same public transport authorities . Some rapid transit systems have at-grade intersections between a rapid transit line and a road or between two rapid transit lines. The world's first rapid transit system was the partially underground Metropolitan Railway which opened in 1863 using steam locomotives , and now forms part of

8455-601: The use of communications-based train control : the minimum headway can reach 90 seconds, but many systems typically use 120 seconds to allow for recovery from delays. Typical capacity lines allow 1,200 people per train, giving 36,000 passengers per hour per direction . However, much higher capacities are attained in East Asia with ranges of 75,000 to 85,000 people per hour achieved by MTR Corporation 's urban lines in Hong Kong. Rapid transit topologies are determined by

8550-558: The way to the airport. Many airports now have some mass transit link, including London , Sydney , Munich , Hong Kong , Vancouver , Philadelphia , Cleveland , New York City (JFK) , Delhi , and Chennai . At the Hong Kong International Airport , ferry services to various piers in the Pearl River Delta are provided. Passengers from Guangdong can use these piers to take a flight at

8645-442: The world's first tram to train interchange station . Public transportation systems such as train or metro systems have the most efficient means and highest capacity to transport people around cities. Therefore, mixed-mode commuting in the urban environment is largely dedicated to first getting people onto the train network and once off the train network to their final destination. Although automobiles are conventionally used as

8740-559: Was Singapore's Mass Rapid Transit (MRT) system, which launched its first underground mobile phone network using AMPS in 1989. Many metro systems, such as the Hong Kong Mass Transit Railway (MTR) and the Berlin U-Bahn, provide mobile data connections in their tunnels for various network operators. The technology used for public, mass rapid transit has undergone significant changes in the years since

8835-899: Was developed further. Other Central European countries also have metro lines, for example in the cities of Budapest (Hungary), Prague (Czech Republic) and Warsaw (Poland). In Eastern Europe , metro systems are in operation in Minsk (Belarus), Kyiv (Ukraine), Riga (Latvia), Vilnius (Lithuania) and Moscow (Russia). In Southeastern European countries, there are metro systems in Athens and Thessaloniki (Greece), Belgrade (Serbia), Sofia (Bulgaria) and Istanbul (Turkey). In Northern Europe , rapid transit systems exist in Copenhagen (Denmark), Oslo (Norway), Stockholm (Sweden) and Helsinki (Finland). Various terms are used for rapid transit systems around North America . The term metro

8930-702: Was low and suburbs tended to spread out . Since the 1970s, the viability of underground train systems in Australian cities, particularly Sydney and Melbourne , has been reconsidered and proposed as a solution to over-capacity. Melbourne had tunnels and stations developed in the 1970s and opened in 1980. The first line of the Sydney Metro was opened in 2019. Since the 1960s, many new systems have been introduced in Europe , Asia and Latin America . In

9025-562: Was then expected to cost $ 80–100 million. MDOT requested $ 300 million in federal funds for the project in 2011, but the request was denied. The Federal Railroad Administration issued a Finding Of No Significant Impact —a major step in the environmental review process—in February 2016, clearing the way for final design and construction to begin after funding was obtained. The project was then expected to cost $ 600 million and include 9.4 miles (15.1 km) of fourth track. On August 27, 2018,

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