Misplaced Pages

#691308

117-1001: New Technology Train ( NTT ) is the collective term for the modern passenger fleet of the New York City Subway that has entered service since the turn of the 21st century. This includes the current R142 , R142A , R143 , R160 , R179 , R188 and R211 models, along with the planned R262 and R268 models. Two prototypes, the R110A and R110B , were used to test the features that would be found on all NTT trains today. Sometimes referred to as New Millennium Trains , they are known for improvements in technology, energy efficiency, reliability, and comfort along with advanced passenger information systems. All of these trains are capable of operating with communications-based train control (CBTC)—which can allow for automatic train controls and compatibility with updated signal systems—and either already have CBTC or are scheduled to be retrofitted with

234-532: A cross-platform interchange between local and express services. Some four-track lines with express service have two tracks each on two levels and use both island and side platforms. Since the majority of the system was built before 1990, the year the Americans with Disabilities Act (ADA) went into effect, many New York City Subway stations were not designed to be accessible to all. Since then, elevators have been built in newly constructed stations to comply with

351-413: A moving block system as shown in the second figure, the train position and its braking curve is continuously calculated by the trains, and then communicated via radio to the wayside equipment. Thus, the wayside equipment is able to establish protected areas, each one called Limit of Movement Authority (LMA), up to the nearest obstacle (in the figure the tail of the train in front). Movement Authority (MA)

468-409: A Frequency Spectrum for Critical Safety Applications dedicated to Urban Rail Systems) to reserve a frequency band specifically for radio-based urban rail systems. Such decision would help standardize CBTC systems across the market (a growing demand from most operators) and ensure availability for those critical systems. As a CBTC system is required to have high availability and particularly, allow for

585-497: A Vignelli-style interactive subway map, "The Weekender", an online map that provides information about any planned work, from late Friday night to early Monday morning. In October 2020, the MTA launched a digital version of the map showing real-time service patterns and service changes, designed by Work & Co . Several privately produced schematics are available online or in printed form, such as those by Hagstrom Map . Out of

702-488: A better adaptation of the transport offer to the actual demand, allows significant energy savings reducing the power consumption. The primary risk of an electronic train control system is that if the communications link between any of the trains is disrupted then all or part of the system might have to enter a failsafe state until the problem is remedied. Depending on the severity of the communication loss, this state can range from vehicles temporarily reducing speed, coming to

819-460: A black (blue on the R211) front fascia on the "A" (cab) cars, open lexan -glass windows on non-cab ends allowing passengers to see through to the next car, and electronic outer route signs, as opposed to the rollsigns used by previous models. Improvements to the conductors' interface include the addition of speedometers as well as electronic consoles that monitor mechanical problems that may occur on

936-507: A careful analysis of the benefits and risks of a given CBTC architecture (centralized vs. distributed) must be done during system design. When CBTC is applied to systems that previously ran under complete human control with operators working on sight it may actually result in a reduction in capacity (albeit with an increase in safety). This is because CBTC operates with less positional certainty than human sight and also with greater margins for error as worst-case train parameters are applied for

1053-544: A fully redundant architecture of the CBTC system may however achieve high availability values by itself. In principle, CBTC systems may be designed with centralized supervision systems in order to improve maintainability and reduce installation costs. If so, there is an increased risk of a single point of failure that could disrupt service over an entire system or line. Fixed block systems usually work with distributed logic that are normally more resistant to such outages. Therefore,

1170-418: A graceful degradation, a secondary method of signaling might be provided to ensure some level of non-degraded service upon partial or complete CBTC unavailability. This is particularly relevant for brownfield implementations (lines with an already existing signalling system) where the infrastructure design cannot be controlled and coexistence with legacy systems is required, at least, temporarily. For example,

1287-573: A halt or operating in a degraded mode until communications are re-established. If communication outage is permanent some sort of contingency operation must be implemented which may consist of manual operation using absolute block or, in the worst case, the substitution of an alternative form of transportation . As a result, high availability of CBTC systems is crucial for proper operation, especially if such systems are used to increase transport capacity and reduce headway. System redundancy and recovery mechanisms must then be thoroughly checked to achieve

SECTION 10

#1732776064692

1404-509: A high robustness in operation. With the increased availability of the CBTC system, there is also a need for extensive training and periodical refresh of system operators on the recovery procedures . In fact, one of the major system hazards in CBTC systems is the probability of human error and improper application of recovery procedures if the system becomes unavailable. Communications failures can result from equipment malfunction, electromagnetic interference , weak signal strength or saturation of

1521-769: A letter or a number and "lines" have names. Trains display their route designation. There are 28 train services in the subway system, including three short shuttles . Each route has a color and a local or express designation representing the Manhattan trunk line of the service. New York City residents seldom refer to services by color (e.g., "blue line" or "green line") but out-of-towners and tourists often do. The 1 , C , G , L , M , R , and W trains are fully local and make all stops. The 2 , 3 , 4 , 5 , A , B , D , E , F , N , and Q trains have portions of express and local service. J , Z , 6 , and 7 trains vary by direction, day, or time of day. The letter S

1638-514: A more comfortable ride, and employ regenerative braking which converts the energy from brake application into electricity that is fed back into the third rail . All NTT trains are capable of being equipped with communications-based train control (CBTC) technology, which is installed in the "A" cars behind the train operator's cab. Until the late 2010s, only the R143s and R188s, as well as sixty-eight R160As, had been upgraded for automated service on

1755-542: A public authority presided by New York City, was created in 1953 to take over subway, bus, and streetcar operations from the city, and placed under control of the state-level Metropolitan Transportation Authority in 1968. Organized in 1934 by transit workers of the BRT, IRT, and IND, the Transport Workers Union of America Local 100 remains the largest and most influential local of the labor unions. Since

1872-446: A single fare to enter the subway system and may transfer between trains at no extra cost until they exit via station turnstiles; the fare is a flat rate regardless of how far or how long the rider travels. Thus, riders must swipe their MetroCard or tap a contactless payment card or smartphone on an OMNY reader upon entering the subway system, but not a second time upon leaving. Communications-based train control A CBTC system

1989-482: A station, passengers may use station booths (formerly known as token booths) or vending machines to buy their fare, which is currently stored in a MetroCard or OMNY card. Each station has at least one booth, typically located at the busiest entrance. After swiping the card at a turnstile, customers enter the fare-controlled area of the station and continue to the platforms. Inside fare control are "Off-Hours Waiting Areas", which consist of benches and are identified by

2106-497: A stop is being approached, and while idle at that stop. Lights turned off to indicate a stop already reached, or a part of the route not serviced on that particular trip. LED arrows at either end of the map indicate the direction of service. Electronic strip maps were first tested on the R110A and R110B in the 1990s. While an upgrade from static route maps, most of the strip maps can only facilitate one service and must be turned off when

2223-479: A subsidiary of Kawasaki Heavy Industries , be awarded the $ 3.7 billion base order for the first 535 new R211 cars. The cars are anticipated to be delivered from 2020 to 2023, with the option orders to be delivered by 2025. The R211 base order includes 20 R211T cars with open gangways ; 75 R211S cars for the Staten Island Railway, to be delivered near the end of the base order; and 440 cars similar to

2340-431: A subway. The tunnel was never extended for political and financial reasons. Today, no part of this line remains as the tunnel was completely within the limits of the present-day City Hall station under Broadway. The Great Blizzard of 1888 helped demonstrate the benefits of an underground transportation system. A plan for the construction of the subway was approved in 1894, and construction began in 1900. Even though

2457-638: A train is used on another route. This problem is common on the 2 and 5 trains, which both use R142 cars based from the East 180th Street and 239th Street yards and have large amounts of route overlap on the IRT White Plains Road , Eastern Parkway , and Nostrand Avenue lines. The problem is also seen occasionally on the J/Z and L trains, which use R143 cars from the East New York yard that

SECTION 20

#1732776064692

2574-757: A variety of applications as shown in the figure below (mid 2011). They range from some implementations with short track, limited numbers of vehicles and few operating modes (such as the airport APMs in San Francisco or Washington ), to complex overlays on existing railway networks carrying more than a million passengers each day and with more than 100 trains (such as lines 1 and 6 in Madrid Metro , line 3 in Shenzhen Metro , some lines in Paris Metro , New York City Subway and Beijing Subway , or

2691-475: A wheel-rotation counter to make accurate stop announcements. The recordings began in the late 1990s and feature Bloomberg Radio on-air speakers, who volunteered at the request of their employer Michael Bloomberg , who would later become mayor of New York City. Voices include Dianne Thompson (for the 1, 2, and 3 (and the discontinued 9) trains), Melissa Kleiner (original voice of the 4 and 5 trains outside of Manhattan), Jessica Ettinger Gottesman (current voice for

2808-497: A yellow sign. A typical subway station has waiting platforms ranging from 480 to 600 feet (150 to 180 m) long. Some are longer. Platforms of former commuter rail stations—such as those on the IND Rockaway Line , are even longer. With the many different lines in the system, one platform often serves more than one service. Passengers need to look at the overhead signs to see which trains stop there and when, and at

2925-452: Is a "continuous, automatic train control system utilizing high-resolution train location determination, independent from track circuits ; continuous, high-capacity, bidirectional train-to-wayside data communications; and trainborne and wayside processors capable of implementing automatic train protection (ATP) functions, as well as optional automatic train operation (ATO) and automatic train supervision ( ATS ) functions," as defined in

3042-489: Is approximately 8 feet 9 inches (2.67 m) wide and 51 feet 4 inches (15.65 m) long, whereas B Division equipment is about 10 feet (3.05 m) wide and either 60 feet 6 inches (18.44 m) or 75 feet (22.86 m) long. The different lengths for the B Division fleet are necessary because 75-foot cars can not be used over the BMT Eastern Division . Cars purchased by

3159-473: Is considered as a basic enabler technology for this purpose. There are four grades of automation available: CBTC systems allow optimal use of the railway infrastructure as well as achieving maximum capacity and minimum headway between operating trains, while maintaining the safety requirements. These systems are suitable for the new highly demanding urban lines, but also to be overlaid on existing lines in order to improve their performance. Of course, in

3276-436: Is evolving, making use of the latest techniques and components to offer more compact systems and simpler architectures. For instance, with the advent of modern electronics it has been possible to build in redundancy so that single failures do not adversely impact operational availability. Moreover, these systems offer complete flexibility in terms of operational schedules or timetables, enabling urban rail operators to respond to

3393-406: Is no nightly system shutdown for maintenance, tracks and stations must be maintained while the system is operating. This work sometimes necessitates service changes during midday, overnight hours, and weekends. When parts of lines are temporarily shut down for construction purposes, the transit authority can substitute free shuttle buses (using MTA Regional Bus Operations bus fleet ) to replace

3510-449: Is shared by all three services. To solve this problem, the MTA began replacing the individual strip maps for cars assigned to these routes in 2016, with combined strip maps showing both services; the R143s would later be retrofitted with strip maps that also show all stops used by all three services beginning in late 2019. The R160s, R179s, and R211s employ digital display systems as an advanced alternative to strip maps. These systems update

3627-427: Is smaller than the peak of the system. In addition to the demolition of former elevated lines, which collectively have resulted in the demolition of over a hundred stations, other closed stations and unused portions of existing stations remain in parts of the system. Many stations in the subway system have mezzanines . Mezzanines allow for passengers to enter from multiple locations at an intersection and proceed to

New Technology Train - Misplaced Pages Continue

3744-419: Is the permission for a train to move to a specific location within the constraints of the infrastructure and with supervision of speed. End of Authority is the location to which the train is permitted to proceed and where target speed is equal to zero. End of Movement is the location to which the train is permitted to proceed according to an MA. When transmitting an MA, it is the end of the last section given in

3861-402: Is the use of leaky feeder cable that, while having higher initial costs (material + installation) achieves a more reliable radio link. With the emerging services over open ISM radio bands (i.e. 2.4 GHz and 5.8 GHz) and the potential disruption over critical CBTC services, there is an increasing pressure in the international community (ref. report 676 of UITP organization, Reservation of

3978-554: Is used for three shuttle services: Franklin Avenue Shuttle , Rockaway Park Shuttle , and 42nd Street Shuttle . Though the subway system operates on a 24-hour basis , during late night hours some of the designated routes do not run, run as a shorter route (often referred to as the "shuttle train" version of its full-length counterpart) or run with a different stopping pattern. These are usually indicated by smaller, secondary route signage on station platforms. Because there

4095-493: Is varying according to the continuous updates of the train location and speed, maintaining the safety requirements. This results in a reduced headway between consecutive trains and an increased transport capacity . Modern CBTC systems allow different levels of automation or grades of automation (GoA), as defined and classified in the IEC 62290–1. In fact, CBTC is not a synonym for " driverless " or "automated trains" although it

4212-577: The 142nd Street and Myrtle Avenue junctions, whose tracks intersect at the same level, as well as the same-direction pairs of tracks on the IRT Eastern Parkway Line at Rogers Junction . The 7,700 workers who built the original subway lines were mostly immigrants living in Manhattan. More recent projects use tunnel boring machines , which increase the cost. However, they minimize disruption at street level and avoid already existing utilities. Examples of such projects include

4329-672: The 472 stations , 470 are served 24 hours a day. Underground stations in the New York City Subway are typically accessed by staircases going down from street level. Many of these staircases are painted in a common shade of green, with slight or significant variations in design. Other stations have unique entrances reflective of their location or date of construction. Several station entrance stairs, for example, are built into adjacent buildings. Nearly all station entrances feature color-coded globe or square lamps signifying their status as an entrance. The current number of stations

4446-548: The 63rd Street Lines , opened in 1989. The new South Ferry station was built and connected to the existing Whitehall Street–South Ferry station in 2009. The one-stop 7 Subway Extension to the west side of Manhattan, consisting of the 34th Street–Hudson Yards station, was opened in 2015, and three stations on the Second Avenue Subway in the Upper East Side were opened as part of Phase 1 of

4563-573: The A for a 30-day in-service acceptance test. In January 2019, the MTA announced that the R262s would be replacing the R62 and R62A fleets, a new fleet that would be ordered as part of a future capital program. In June 2023, the MTA hinted towards the existence of the R268 subway car contract. More information is to be announced. The NTT models utilize a common car design; stainless-steel car bodies with

4680-599: The BMT Canarsie Line in New York City was outfitted with a backup automatic block signaling system capable of supporting 12 trains per hour (tph), compared with the 26 tph of the CBTC system. Although this is a rather common architecture for resignalling projects, it can negate some of the cost savings of CBTC if applied to new lines. This is still a key point in the CBTC development (and is still being discussed), since some providers and operators argue that

4797-706: The Chicago "L" plans all stations to be accessible in the 2030s, the Toronto subway will be fully accessible by 2025, and Montreal Metro plans all stations to be accessible by 2038. Both the Boston and Chicago systems are as old or older than the New York City Subway, though all of these systems have fewer stations than the New York City Subway. Newer systems like the Washington Metro and Bay Area Rapid Transit have been fully accessible from their opening in

New Technology Train - Misplaced Pages Continue

4914-478: The IEEE 1474 standard. CBTC is a signalling standard defined by the IEEE 1474 standard. The original version was introduced in 1999 and updated in 2004. The aim was to create consistency and standardisation between digital railway signalling systems that allow for an increase in train capacity through what the standard defines as high-resolution train location determination. The standard therefore does not require

5031-549: The IND Sixth Avenue Line was completed in 1940, the city went into great debt , and only 33 new stations have been added to the system since, nineteen of which were part of defunct railways that already existed. Five stations were on the abandoned New York, Westchester and Boston Railway , which was incorporated into the system in 1941 as the IRT Dyre Avenue Line . Fourteen more stations were on

5148-719: The IRT Broadway–Seventh Avenue Line , which ran directly underneath the World Trade Center . Sections of the tunnel, as well as the Cortlandt Street station, which was directly underneath the Twin Towers, were severely damaged. Rebuilding required the suspension of service on that line south of Chambers Street. Ten other nearby stations were closed for cleanup. By March 2002, seven of those stations had reopened. Except for Cortlandt Street,

5265-720: The IRT subway debuted in 1904, the typical tunnel construction method was cut-and-cover . The street was torn up to dig the tunnel below before being rebuilt from above. Traffic on the street above would be interrupted due to the digging up of the street. Temporary steel and wooden bridges carried surface traffic above the construction. Contractors in this type of construction faced many obstacles, both natural and human made. They had to deal with rock formations and groundwater, which required pumps. Twelve miles of sewers, as well as water and gas mains, electric conduits, and steam pipes had to be rerouted. Street railways had to be torn up to allow

5382-645: The L and 7 routes. During the late 2010s and early 2020s, most of the remaining R160s were also retrofitted with CBTC. All existing cars in the R142 and R142A fleets and future cars in the R211 and R262 fleets will also be equipped with CBTC in the future. The NTTs are the first rolling stock in the system to utilize pre-recorded train announcements, as opposed to live announcements from conductors. The recorded announcements are used for station information, closing doors, and other general messages. Station announcements rely on

5499-564: The Metropolitan Transportation Authority (MTA) beginning in 1982, when the subway "was on the verge of collapse" . The New Technology program officially began in 1988, the first effort at a technologically advanced subway car since the R44 in the early 1970s. In 1989, the MTA awarded contracts for two prototype test trains: the R110A (contract R130) for the A Division built by Kawasaki Heavy Industries , and

5616-578: The R110B (contract R131) for the B Division built by Bombardier Transportation . The two New Technology test trains (NTTTs) began service in June 1993, testing features that would be implemented on future mass-production orders. Both trains were taken out of service by 2000, due to multiple issues with the trains. In 1997, the first mass order of New Technology trains was placed for the R142 and R142A trains of

5733-562: The R142 , R142A , R143 , R160 , R179 and R188 were placed into service. These cars are collectively known as New Technology Trains (NTTs) due to modern innovations such as LED and LCD route signs and information screens, as well as recorded train announcements and the ability to facilitate Communication-Based Train Control (CBTC) . As part of the 2017–2020 MTA Financial Plan, 600 subway cars will have electronic display signs installed to improve customer experience. Riders pay

5850-742: The R179 contract for 300 new B Division cars, to replace the 50 R42s on the BMT Jamaica Line ( J and ​ Z trains). In December 2012, preliminary designs began on the R211 B Division contract, which entails 940 cars in order to expand the system fleet, and to replace the R46 fleet, and the R44 fleet of the Staten Island Railway ; both models were built in the 1970s. Both

5967-503: The Rockaway Park Shuttle . Large portions of the subway outside Manhattan are elevated, on embankments , or in open cuts , and a few stretches of track run at ground level; 40% of track is above ground. Many lines and stations have both express and local services. These lines have three or four tracks. Normally, the outer two are used by local trains, while the inner one or two are used by express trains. As of 2018 ,

SECTION 50

#1732776064692

6084-711: The Singapore North East Line . CBTC has its origins in the loop-based systems developed by Alcatel SEL (now Thales ) for the Bombardier Automated Rapid Transit (ART) systems in Canada during the mid-1980s. These systems, which were also referred to as transmission-based train control (TBTC), made use of inductive loop transmission techniques for track to train communication, introducing an alternative to track circuit based communication. This technology, operating in

6201-644: The extension of the IRT Flushing Line and the IND Second Avenue Line . Since the opening of the original New York City Subway line in 1904, multiple official and planning agencies have proposed numerous extensions to the subway system. One of the more expansive proposals was the " IND Second System", part of a plan to construct new subway lines in addition to taking over existing subway lines and railroad rights-of-way. The most grandiose IND Second Subway plan, conceived in 1929,

6318-416: The signalling system perspective, the first figure shows the total occupancy of the leading train by including the whole blocks which the train is located on. This is due to the fact that it is impossible for the system to know exactly where the train actually is within these blocks . Therefore, the fixed block system only allows the following train to move up to the last unoccupied block 's border. In

6435-410: The 1970s. In November 2016, the New York City Subway had 6712 cars on the roster. A typical New York City Subway train consists of 8 to 11 cars, although shuttles can have as few as two, and the train can range from 150 to 600 feet (46 to 183 m) in length. The system maintains two separate fleets of cars, one for the A Division routes and another for the B Division routes. A Division equipment

6552-450: The 1980s, make the current fleet of subway cars graffiti-free, as well as order 1,775 new subway cars. By the early 1990s, conditions had improved significantly, although maintenance backlogs accumulated during those 20 years are still being fixed today. Entering the 21st century, progress continued despite several disasters. The September 11 attacks resulted in service disruptions on lines running through Lower Manhattan, particularly

6669-415: The 2020–2024 Capital Program. This would allow one of every two to four stations on every line to be accessible, so that all non-accessible stops would be a maximum of two stops from an accessible station. In 2022, the MTA agreed in a settlement to make 95 percent of subway and Staten Island Railway stations accessible by 2055. By comparison, all but one of Boston's MBTA subway stations are accessible,

6786-544: The 30–60  kHz frequency range to communicate trains and wayside equipment, was widely adopted by the metro operators in spite of some electromagnetic compatibility (EMC) issues, as well as other installation and maintenance concerns (see SelTrac for further information regarding transmission-based train-control). As with new application of any technology, some problems arose at the beginning mainly due to compatibility and interoperability aspects. However, there have been relevant improvements since then, and currently

6903-706: The 4, 5, and 6 trains), Annie Bergen (for the 7 train and 42nd Street Shuttle), Catherine Cowdery (for the B, D, E, G, J, L, M, N, Q, R, (V discontinued), W, and Z trains), Kathleen Campion (for the A, C, and F trains, as well as the Franklin Avenue Shuttle and Rockaway Park Shuttle), and Charlie Pellett (for other announcements). Since 2018, Velina Mitchell has also done some of the announcements formerly performed by Pellett, particularly informational messages and station accessibility information. Female voices are typically used for station, route, and transfer/connection announcements, although Pellett announces

7020-683: The A Division (awarded to Bombardier and Kawasaki respectively), in order to replace the final 1,410 Redbird cars in operation. In 1998, a smaller contract of 212 cars, consisting of 100 in the base order and 112 in the optional order, was awarded to Kawasaki Heavy Industries, to build the R143 model for the B Division's BMT Eastern Division (primarily the BMT Canarsie Line 's L train). The first R142s and R142As entered service beginning in July 2000. The R143s began operation in February 2002. In July 2002,

7137-524: The ADA. (Most grade-level stations required little modification to meet ADA standards.) Many accessible stations have AutoGate access. In addition, the MTA identified "key stations", high-traffic and/or geographically important stations, which must conform to the ADA when they are extensively renovated. Under plans from the MTA in 2016, the number of ADA accessible stations would go up to 144 by 2020. As of May 2024 , there were 145 ADA-accessible stations. Over

SECTION 60

#1732776064692

7254-593: The City of New York since the inception of the IND and the other divisions beginning in 1948 are identified by the letter "R" followed by a number; e.g.: R32 . This number is the contract number under which the cars were purchased. Cars with nearby contract numbers (e.g.: R1 through R9 , or R26 through R29 , or R143 through R179 ) may be relatively identical, despite being purchased under different contracts and possibly built by different manufacturers. From 1999 to 2019,

7371-695: The FIND has gone blank, the R179 FIND displays "Route change: this map is not in use", as opposed to the R160 FIND, which displays "Listen to train crew for announcement." The R211 introduces a new digital display system, known as the Flexible Ceiling Strip Display (FCSD). There are eight of these in each car, located above each set of doors. An LCD strip map displays the next ten stations, plus consecutive "further stops". The screens of

7488-511: The MA. It is important to mention that the occupancy calculated in these systems must include a safety margin for location uncertainty (in yellow in the figure) added to the length of the train. Both of them form what is usually called 'Footprint'. This safety margin depends on the accuracy of the odometry system in the train. CBTC systems based on moving block allows the reduction of the safety distance between two consecutive trains. This distance

7605-484: The MTA and Comedy Central to promote actress Awkwafina 's TV show Nora From Queens , the default pre-recorded announcements for the 7 train on the R188s were replaced with those from Awkwafina for one week. The announcements from Awkwafina featured jokes in addition to the standard station announcements. The agreement was the first time that the MTA has replaced train announcements as a form of advertising. In April 2024,

7722-522: The MTA announced plans to add 31,000 digital advertising screens in 5,134 cars, which were installed by Outfront Media starting in 2019. In 2020, the MTA started displaying real-time service metrics on the screens, such as service changes and dynamic transfer information. In the R211s, twelve digital advertising displays may be installed in each car, six on either side. There are also provisions for eight Flexible Wall Displays, which are to be mounted next to

7839-469: The MTA awarded contracts to Kawasaki and Alstom for the R160 order for the B Division, with options for up to 1,700 cars to replace many 1960s- and 1970s-era cars. The first R160 train, built by Kawasaki under the contract R160B, began service on August 17, 2006, on the N . The initial 660-car base order was filled by October 2008, with a total of 1,662 cars delivered by May 6, 2010. On May 5, 2010, Kawasaki

7956-426: The MTA indicated that it would record public service announcements by celebrities, which would be played on New Technology Trains for one year as part of a pilot program. The R142s, R142As, R143s, and R188s feature electronic "strip maps." These maps utilize a total of 63 amber LED lights, numbered 001–063, to display stops, with a plastic card on top showing the route, stations, and transfers. A light will flash when

8073-524: The New York City Subway is the busiest rapid transit system in both the Western Hemisphere and the Western world , as well as the eleventh-busiest rapid transit rail system in the world. The subway carried 2,027,286,000 unlinked, non-unique riders in 2023. Daily ridership has been calculated since 1985; the record, over 6.2 million, was set on October 29, 2015. The system is also one of

8190-641: The New York City Subway's budgetary burden for expenditures was $ 8.7 billion, supported by collection of fares, bridge tolls, and earmarked regional taxes and fees, as well as direct funding from state and local governments. Alfred Ely Beach built the first demonstration for an underground transit system in New York City in 1869 and opened it in February 1870. His Beach Pneumatic Transit only extended 312 feet (95 m) under Broadway in Lower Manhattan operating from Warren Street to Murray Street and exhibited his idea for an atmospheric railway as

8307-635: The R143/R160 series, operating in five-car units. The cars will be assembled at Kawasaki's factories in Lincoln, Nebraska , and Yonkers, New York . After multiple delays, the first R211A test train was delivered in July 2021, with the production cars being delivered between 2021 and 2023. The first of the R211Ts were delivered on October 31, 2022. On March 10, 2023, the R211As were placed into revenue service on

8424-669: The R179 and R211 orders were supposed to replace the 222 remaining R32 cars, which were built in the 1960s and have run well past their expected lives, by the year 2022., however, in January 2020, it was decided that the R179 fleet was to replace all remaining R32s. The R179 order fell significantly behind schedule, with first test train delivered in September 2016. On January 19, 2018, the MTA Board suggested that Kawasaki Rail Car Corp.,

8541-591: The R211s have the ability to display additional information when arriving at a station, such as specific bus transfers, elevator locations, and which car the customer is located in. When the display is not being used for wayfinding purposes, the FCSD will show the text "Route Change: This Map is Not in Use", a media display, or an informational message. New Technology Trains built between the 1990s and mid-2010s did not originally have digital advertising displays. In September 2017,

8658-565: The Sub-Surface network in London Underground ). Despite the difficulty, the table below tries to summarize and reference the main radio-based CBTC systems deployed around the world as well as those ongoing projects being developed. Besides, the table distinguishes between the implementations performed over existing and operative systems ( brownfield ) and those undertaken on completely new lines ( Greenfield ). This list

8775-615: The abandoned LIRR Rockaway Beach Branch (now the IND Rockaway Line ), which opened in 1955. Two stations ( 57th Street and Grand Street ) were part of the Chrystie Street Connection , and opened in 1968; the Harlem–148th Street terminal opened that same year in an unrelated project. Six were built as part of a 1968 plan : three on the Archer Avenue Lines , opened in 1988, and three on

8892-526: The arriving train to identify it. There are several common platform configurations. On a double track line, a station may have one center island platform used for trains in both directions, or two side platforms , one for each direction. For lines with three or four tracks with express service, local stops will have side platforms and the middle one or two tracks will not stop at the station. On these lines, express stations typically have two island platforms, one for each direction. Each island platform provides

9009-645: The case of upgrading existing lines the design, installation, test and commissioning stages are much more critical. This is mainly due to the challenge of deploying the overlying system without disrupting the revenue service. The evolution of the technology and the experience gained in operation over the last 30 years means that modern CBTC systems are more reliable and less prone to failure than older train control systems. CBTC systems normally have less wayside equipment and their diagnostic and monitoring tools have been improved, which makes them easier to implement and, more importantly, easier to maintain. CBTC technology

9126-414: The communications medium. In this case, an interruption can result in a service brake or emergency brake application as real time situational awareness is a critical safety requirement for CBTC and if these interruptions are frequent enough it could seriously impact service. This is the reason why, historically, CBTC systems first implemented radio communication systems in 2003, when the required technology

9243-410: The complexity of the system (Manhattan being the smallest borough, but having the most services), but they do show major city streets as an aid to navigation. The newest edition took effect on June 27, 2010, and makes Manhattan bigger and Staten Island smaller, with minor tweaks happening to the map when more permanent changes occur. Earlier diagrams of the subway, the first being produced in 1958, had

9360-425: The correct platform without having to cross the street before entering. Inside mezzanines are fare control areas, where passengers physically pay their fare to enter the subway system. In many older stations, the fare control area is at platform level with no mezzanine crossovers. Many elevated stations also have platform-level fare control with no common station house between directions of service. Upon entering

9477-454: The design (e.g. guaranteed emergency brake rate vs. nominal brake rate). For instance, CBTC introduction in Philly's Center City trolley tunnel resulted initially in a marked increase in travel time and corresponding decrease in capacity when compared with the unprotected manual driving. This was the offset to finally eradicate vehicle collisions which on-sight driving cannot avoid and showcases

9594-660: The door leaves. New York City Subway July 3, 1868 ; 156 years ago  ( 1868-07-03 ) (first elevated, rapid transit operation) [REDACTED] The New York City Subway is a rapid transit system in New York City serving the boroughs of Manhattan , Brooklyn , Queens , and the Bronx . It is owned by the government of New York City and leased to the New York City Transit Authority , an affiliate agency of

9711-482: The five-cent fare of the time, or 10¢ ($ 3 in 2023 dollars ). In 1940, the city bought the two private systems. Some elevated lines ceased service immediately while others closed soon after. Integration was slow, but several connections were built between the IND and BMT. These now operate as one division, called the B Division . Since the former IRT tunnels are narrower, have sharper curves, and shorter station platforms, they cannot accommodate B Division cars, and

9828-400: The former IRT remains its own division, the A Division . Many passenger transfers between stations of all three former companies have been created, allowing the entire network to be treated as a single unit. During the late 1940s, the system recorded high ridership, and on December 23, 1946, the system-wide record of 8,872,249 fares was set. The New York City Transit Authority (NYCTA),

9945-559: The hurricane included the restoration of the new South Ferry station from 2012 to 2017; the full closure of the Montague Street Tunnel from 2013 to 2014; and the partial 14th Street Tunnel shutdown from 2019 to 2020. Annual ridership on the New York City Subway system, which totaled nearly 1.7 billion in 2019, declined dramatically during the COVID-19 pandemic and did not surpass one billion again until 2022. When

10062-463: The line at the beginning of 2017. Many rapid transit systems run relatively static routings, so that a train "line" is more or less synonymous with a train "route". In New York City, routings change often, for various reasons. Within the nomenclature of the subway , the "line" describes the physical railroad track or series of tracks that a train "route" uses on its way from one terminal to another. "Routes" (also called "services") are distinguished by

10179-403: The lines and leased them to the companies. The first line of the city-owned and operated Independent Subway System (IND) opened in 1932. This system was intended to compete with the private systems and allow some of the elevated railways to be torn down but stayed within the core of the city due to its small startup capital. This required it to be run 'at cost', necessitating fares up to double

10296-566: The majority of the transfers on the A Division instead of the female voices. Pellett's recordings are used for most of the remaining announcements, most notably "Stand clear of the closing doors, please" before train doors closing, but also for safety announcements such as " Please be careful of the gap between the platform and the train " before entering a station with curved platforms, and "If you see something, say something." With regard to why certain messages are voiced by males and others by females, MTA spokesperson Gene Sansone said in 2006, "Most of

10413-409: The modern CBTC systems the trains continuously calculate and communicate their status via radio to the wayside equipment distributed along the line. This status includes, among other parameters, the exact position, speed, travel direction and braking distance . This information allows calculation of the area potentially occupied by the train on the track. It also enables the wayside equipment to define

10530-416: The orders are given by a male voice, while informational messages come from females. Even though this happened by accident, it is a lucky thing because a lot of psychologists agree that people are more receptive to orders from men and information from women." Manual announcements can still be made over the public address system by train operators and conductors. In January 2020, as part of an agreement between

10647-404: The perception of being more geographically inaccurate than the diagrams today. The design of the subway map by Massimo Vignelli , published by the MTA between 1972 and 1979, has become a modern classic but the MTA deemed the map flawed due to its placement of geographical elements. A late night-only version of the map was introduced on January 30, 2012. On September 16, 2011, the MTA introduced

10764-418: The points on the line that must never be passed by the other trains on the same track. These points are communicated to make the trains automatically and continuously adjust their speed while maintaining the safety and comfort ( jerk ) requirements. So, the trains continuously receive information regarding the distance to the preceding train and are then able to adjust their safety distance accordingly. From

10881-449: The protected section for each train is a "block" that moves with and trails behind it, and provides continuous communication of the train's exact position via radio, inductive loop, etc. As a result, Bombardier opened the world's first radio-based CBTC system at San Francisco airport 's automated people mover (APM) in February 2003. A few months later, in June 2003, Alstom introduced the railway application of its radio technology on

10998-485: The reliability of the radio-based communication systems has grown significantly. Moreover, it is important to highlight that not all the systems using radio communication technology are considered to be CBTC systems. So, for clarity and to keep in line with the state-of-the-art solutions for operator's requirements, this article only covers the latest moving block principle based (either true moving block or virtual block , so not dependent on track-based detection of

11115-447: The rest reopened in September 2002, along with service south of Chambers Street. Cortlandt Street reopened in September 2018. In October 2012, Hurricane Sandy flooded several underwater tunnels and other facilities near New York Harbor , as well as trackage over Jamaica Bay . The immediate damage was fixed within six months, but long-term resiliency and rehabilitation projects continued for several years. The recovery projects after

11232-508: The route, route information, and advertisements, as well as a dynamic red, yellow, and green LED strip map that displays the next ten stations, plus five consecutive "further stops" to riders. Although they function the same on both models, the FIND systems used on the R179s have slight differences. The LCD displays where the route's emblem is displayed are slightly larger than those on the R160s. If

11349-477: The routes proposed over the decades have never seen construction, discussion remains strong to develop some of these lines, to alleviate existing subway capacity constraints and overcrowding, the most notable being the proposals for the Second Avenue Subway . Plans for new lines date back to the early 1910s, and expansion plans have been proposed during many years of the system's existence. After

11466-403: The routes that would normally run on these lines. The Transit Authority announces planned service changes through its website, via placards that are posted on station and interior subway-car walls, and through its Twitter page. Current official transit maps of the New York City Subway are based on a 1979 design by Michael Hertz Associates . The maps are not geographically accurate due to

11583-480: The specific traffic demand more swiftly and efficiently and to solve traffic congestion problems. In fact, automatic operation systems have the potential to significantly reduce the headway and improve the traffic capacity compared to manual driving systems. Finally, it is important to mention that the CBTC systems have proven to be more energy efficient than traditional manually driven systems. The use of new functionalities, such as automatic driving strategies or

11700-486: The state-run Metropolitan Transportation Authority (MTA). Opened on October 27, 1904, the New York City Subway is one of the world's oldest public transit systems, one of the most-used, and the one with the most stations, with 472 stations in operation (423, if stations connected by transfers are counted as single stations). The system has operated 24/7 service every day of the year throughout most of its history, barring emergencies and disasters. By annual ridership,

11817-574: The stations at every stop, also giving the number of stops to each station listed. As the displays can be used by multiple routes instead of one, this allows for instant route or line changes with the correct information, which includes, but is not limited to, omitting certain stops (displayed as "Will not stop" in red). The R160s and R179s employ a system called the Flexible Information and Notice Display, or FIND. There are three of these in every car. This includes an LCD screen displaying

11934-508: The subway system runs on surface or elevated tracks, including steel or cast-iron elevated structures , concrete viaducts , embankments , open cuts and surface routes. As of 2019 , there are 168 miles (270 km) of elevated tracks. All of these construction methods are completely grade-separated from road and pedestrian crossings, and most crossings of two subway tracks are grade-separated with flying junctions . The sole exceptions of at-grade junctions of two lines in regular service are

12051-423: The system. Much of the engineering and construction efforts for the fleet have been done by Kawasaki Heavy Industries and Bombardier Transportation , with Alstom also participating in the construction of the R160 fleet. This is a list of all NTT trains operated by the New York City Subway, as well as future trains and retired trains of the MTA. The New Technology program emerged from modernization efforts by

12168-494: The train. The cars feature a white fiberglass interior with blue-gray plastic bench seats both to combat vandalism, along with bright fluorescent lighting and LED interior passenger information signs. The bench-style seats, designed with lumbar supports, also replaced the bucket-style seats used on rolling stock built in the 1970s and '80s, which were uncomfortable for some passengers and harder to clean. The trains utilize an airbag suspension (replacing conventional springs) for

12285-520: The trains) CBTC solutions that make use of the radio communications . CBTC systems are modern railway signaling systems that can mainly be used in urban railway lines (either light or heavy ) and APMs , although it could also be deployed on commuter lines . For main lines , a similar system might be the European Railway Traffic Management System ERTMS Level 3 (not yet fully defined ). In

12402-615: The underground portions of the subway had yet to be built, several above-ground segments of the modern-day New York City Subway system were already in service by then. The oldest structure still in use opened in 1885 as part of the BMT Lexington Avenue Line in Brooklyn and is now part of the BMT Jamaica Line . The oldest right-of-way, which is part of the BMT West End Line near Coney Island Creek ,

12519-542: The union's founding, there have been three union strikes over contract disputes with the MTA: 12 days in 1966 , 11 days in 1980 , and three days in 2005 . By the 1970s and 1980s, the New York City Subway was at an all-time low. Ridership had dropped to 1910s levels, and graffiti and crime were rampant. Maintenance was poor, and delays and track problems were common. Still, the NYCTA managed to open six new subway stations in

12636-414: The use of moving block railway signalling, but in practice this is the most common arrangement. Traditional signalling systems detect trains in discrete sections of the track called ' blocks ', each protected by signals that prevent a train entering an occupied block. Since every block is a fixed section of track, these systems are referred to as fixed block systems. In a moving block CBTC system

12753-401: The usual conflicts between operation and safety. The typical architecture of a modern CBTC system comprises the following main subsystems: Thus, although a CBTC architecture is always depending on the supplier and its technical approach, the following logical components may be found generally in a typical CBTC architecture: CBTC technology has been (and is being) successfully implemented for

12870-721: The work. The foundations of tall buildings often ran near the subway construction, and in some cases needed underpinning to ensure stability. This method worked well for digging soft dirt and gravel near the street surface. Tunnelling shields were required for deeper sections, such as the Harlem and East River tunnels, which used cast-iron tubes. Rock or concrete-lined tunnels were used on segments from 33rd to 42nd streets under Park Avenue ; 116th to 120th Streets under Broadway ; 145th to Dyckman Streets (Fort George) under Broadway and St. Nicholas Avenue ; and 96th Street and Broadway to Central Park North and Lenox Avenue . About 40% of

12987-495: The world's longest. Overall, the system contains 248 miles (399 km) of routes, translating into 665 miles (1,070 km) of revenue track and a total of 850 miles (1,370 km) including non-revenue trackage . Of the system's 28 routes or "services" (which usually share track or "lines" with other services), 25 pass through Manhattan, the exceptions being the G train, the Franklin Avenue Shuttle , and

13104-538: The years, the MTA has been involved in a number of lawsuits over the lack of accessibility in its stations. The Eastern Paralyzed Veterans Association filed what may have been the first of these suits in 1979, based on state law. The lawsuits have relied on a number of different legal bases, but most have centered around the MTA's failure to include accessibility as a part of its plans for remodeling various stations. As of January 2022 , ADA-accessibility projects are expected to be started or completed at 51 stations as part of

13221-574: Was awarded the contract for the R188 A Division order, to provide 46 CBTC -ready 11-car trains for the IRT Flushing Line ( 7 and <7> ​ trains). Unlike the other orders, the R188 constructed only 126 new subway cars, with the remaining 380 cars consisting of converted R142As. The first R188s entered service on November 9, 2013. On June 4, 2012, Bombardier was awarded

13338-930: Was in use in 1864 as a steam railroad called the Brooklyn, Bath and Coney Island Rail Road . The first underground line of the subway opened on October 27, 1904, almost 36 years after the opening of the first elevated line in New York City (which became the IRT Ninth Avenue Line ). The 9.1-mile (14.6 km) subway line, then called the "Manhattan Main Line", ran from City Hall station northward under Lafayette Street (then named Elm Street) and Park Avenue (then named Fourth Avenue) before turning westward at 42nd Street . It then curved northward again at Times Square , continuing under Broadway before terminating at 145th Street station in Harlem . Its operation

13455-635: Was leased to the Interborough Rapid Transit Company (IRT), and over 150,000 passengers paid the 5-cent fare ($ 2 in 2023 dollars ) to ride it on the first day of operation. By the late 1900s and early 1910s, the lines had been consolidated into two privately owned systems, the IRT and the Brooklyn Rapid Transit Company (BRT, later Brooklyn–Manhattan Transit Corporation , BMT). The city built most of

13572-413: Was mature enough for critical applications. In systems with poor line of sight or spectrum/bandwidth limitations a larger than anticipated number of transponders may be required to enhance the service. This is usually more of an issue with applying CBTC to existing transit systems in tunnels that were not designed from the outset to support it. An alternate method to improve system availability in tunnels

13689-410: Was to be part of the city-operated IND, and was to comprise almost 1 ⁄ 3 of the current subway system. By 1939, with unification planned, all three systems were included within the plan, which was ultimately never carried out. Many different plans were proposed over the years of the subway's existence, but expansion of the subway system mostly stopped during World War II . Though most of

#691308