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Conceptual platform diagrams
for Queensboro Plaza station
A cross-platform interchange is a type of interchange between different lines in a metro system. The term originates with the London Underground; such layouts exist in other networks but are not commonly so named. In the United States, it is often referred to as a "cross-platform transfer".
This station configuration occurs in a system with island platforms, with a single platform in between the two directions of travel, or two side platforms between the tracks, connected by level corridors. The benefit of this design is that passengers do not need to use stairs to another platform level for transfer, thus increasing the efficiency of commuting. Building a cross-platform interchange may be costly due to the complexity of railtrack alignment, especially so if the railway designers also arrange the track with flyovers (which is typically done to increase efficiency). A common two-directions cross-platform interchange configuration consists of two selected directions of two different lines sharing an island platform, and the respective return directions of both lines sharing a different island platform in the same station complex.
- 1 Types of cross-platform interchanges
- 2 Levels of cross-platform interchange connection
- 3 Cross-platform interchanges in suburban and metro networks
- 3.1 Amsterdam
- 3.2 Auckland
- 3.3 Barcelona
- 3.4 Beijing
- 3.5 Berlin
- 3.6 Bochum
- 3.7 Boston
- 3.8 Brussels
- 3.9 Bucharest
- 3.10 Buenos Aires
- 3.11 Charleroi
- 3.12 Chengdu
- 3.13 Chicago
- 3.14 Cologne
- 3.15 Copenhagen
- 3.16 Duisburg
- 3.17 Düsseldorf
- 3.18 Essen
- 3.19 Frankfurt (Main)
- 3.20 Guangzhou
- 3.21 Hamburg
- 3.22 Hanover
- 3.23 Hangzhou
- 3.24 Hong Kong
- 3.25 London
- 3.26 Lisbon
- 3.27 Madrid
- 3.28 Melbourne
- 3.29 Montreal
- 3.30 Moscow
- 3.31 Mülheim (Ruhr)
- 3.32 Munich
- 3.33 Nanjing
- 3.34 New York City
- 3.35 Nizhny Novgorod
- 3.36 Newark
- 3.37 Nuremberg
- 3.38 Osaka
- 3.39 Paris
- 3.40 Philadelphia
- 3.41 Rhine-Ruhr Area
- 3.42 San Francisco Bay Area
- 3.43 Santiago de Chile
- 3.44 Seoul
- 3.45 Shanghai
- 3.46 Shenzhen
- 3.47 Singapore
- 3.48 St. Petersburg
- 3.49 Stockholm
- 3.50 Sydney
- 3.51 Taipei
- 3.52 Tehran
- 3.53 Tokyo
- 3.54 Vienna
- 3.55 Wuhan
- 4 See also
- 5 References
Types of cross-platform interchanges
Types of cross-platform interchanges describe which trains shall be interconnected cross-platform.
Cross-platform interchanges between different lines
Common cross-platform interchanges allow passengers to switch directions without changing to another platform between trains. This applies nearly everywhere, where trains of different directions meet in minor and major hubs, but is only found at selected interchange stations in the metro networks worldwide.
Cross-platform interchanges between different train categories
Some railway lines usually in more congested areas offer cross-platform interchanges also between different train categories, for example between express and stopping ("local") trains. Generally, this kind of interchange is used in many European railway minor hubs to connect fast trains to local feeder services as well as on surface sections of suburban lines like RER E in Paris or Metro North Hudson Line in New York State; but it is rarely found in metro networks except in Chicago, Chengdu, London, New York City and Philadelphia.
As express and stopping trains usually head for different directions, cross-platform interchange between different train categories is commonly combined with the one between different lines.
Levels of cross-platform interchange connection
Levels of cross-platform interchanges describe how the trains are coordinated by timetable, or not.
Uncoordinated cross-platform interchange
Basically, cross-platform infrastructure only offers the possibility of easy changing of trains independently from the waiting time for the second train. This is the basic infrastructure approach without taking timetables into account. While in metro systems with short headways, waiting time is small, an uncoordinated approach could waste the advantages of stairless cross-platform interchanges in railway networks with less dense train traffic.
Coordinated cross-platform interchange
More advanced is coordination of the lines' timetables at cross-platform interchanges to shorten scheduled changing time at least from one to the other train, or still better, bidirectionally between both trains at the same time. This concept is widely used in Dutch, German and Swiss railway networks, where trains of different lines meet at same platforms in numerous hubs all over the country.
Optimised cross-platform interchange with connection guarantee
Most advanced are coordinated cross-platform interchanges wherein interconnected trains also wait for each other to 'guarantee' scheduled interchanges, even in the event of modest delays. In order to still ensure on-time running across the network, additional waiting time for trains is usually limited to a certain period of time depending on general network performance, further connections to be guaranteed, train category, train line, and a balanced consideration of other factors.
In practice, most railways coordinating cross-platform interchanges define a certain waiting time window for each 'guaranteed' interchange. Some railway operators will briefly delay train departure signals to allow imminently arriving passengers time to interchange. For example, the Vienna U-Bahn metro signals train drivers to wait briefly, by operating a special white light signal triggered by the approach of an interchange train on another track.
Cross-platform interchanges in suburban and metro networks
Amsterdam metro network includes cross-platform interchanges at Van der Madeweg station between metro lines 50 and 53 and eventually in the future also at Amsterdam South station between metro lines 50 and 52. Further, cross-platform connections are offered at Amstel station between metro lines 51, 53, 54 and suburban services of Netherlands Railways.
At Newmarket Station, there are three lines serving two island platforms. Western Line services use the centre line (which can serve both platforms) allowing cross-platform interchange with Southern Line services which use the outer lines.
By 2011, Barcelona metro only offers one cross-platform interchange between metro lines L4 and L11 at Trinitat Nova station where both lines terminate on one track each side of the shared island platform.
Guogongzhuang station offers cross-platform interchange between Line 9 and Fangshan Line. National Library Station offers cross-platform interchange between Lines 9 and 4. In addition Nanluoguxiang station (Lines 8 and 6), Zhuxinzhuang Station (Changping and Line 8) and Beijing West Railway Station (Lines 9 and 7) offer cross-platform interchange.
Berlin suburban rail network includes cross-platform transfers at Berlin East Railway Station, at Baumschulenweg / Schöneweide, Bornholmer Straße, Gesundbrunnen, Treptower Park and Wannsee suburban railway stations.
Berlin metro services offer cross-platform connections at Mehringdamm (metro lines U6/U7), Nollendorfplatz (metro line U4 with outbound lines U1/U3) and Wittenbergplatz (metro lines U2/U3, outbound also U1) metro stations.
Jungfernheide metro station was built for cross-platform interchanges between line U7 and an extended line U5 towards Tegel Airport; the extension plan was abandoned following the decision to replace Tegel Airport with Berlin Brandenburg Airport. A part of one of the U5 tunnels is used by Berlin firefighters for fire and rescue training in a metro tunnel with an original train taken out-of-service. Similar provisions were also made at Schloßstraße metro station for cross-platform interchanges between line U9 and a never realised line U10.
In Bochum premetro network, the only cross-platform transfer is offered at Bochum Main Railway Station between premetro line U35 and sub-surface tram lines 302/310 on the lower level of the underground light rail station complex.
At the MBTA North Station underground level, the inbound platforms of the Orange Line and Green Line are arranged to allow easy cross-platform interchange. Other transfers at this station require passengers to change platform levels.
Brussels South railway station offers an interesting example of double-level cross-platform interchange, where the goal is to make it easier for passengers to "double back". The metro and premetro lines interweave so that, for example, one can arrive on the metro 2 or 6 from the north-east, walk across the island platform, and catch a tram 3 or 4 going south-east. Passengers making this journey in the opposite direction use the level below. Similar cross-platform interchanges offers Beekkant station between metro lines 1/5 and 2/6; in this area, lines 1/5 run on the right while lines 2/6 run on the left due to historical layout when formerly line 1B between Herrmann Debroux and Roi Baudoin stations branched off line 1B (running between Stockel and Erasme stations) and line 1A needed to change driving direction at Beekkant station.
Plaza Miserere provides cross transfer interchange between subway line A and suburban railroad line Sarmiento. There is a never used cross-platform interchange between lines A and D at Plaza de Mayo station and three abandoned cross-platform interchanges: at Primera Junta station between line A and the former tram service towards Lacarra avenue and at San José station on line E between the branch going to Bolívar station and the closed branch to Constitución station where another cross-platform interchange was provided between lines C and E. Suburban lines Sarmiento, San Martín and Roca offers many cross-platform interchanges between express and local services on their 4 track stretches.
Charleroi premetro includes two stations, Beaux-Arts and Waterloo, with possible cross-platform interchanges.
Xipu Station in Chengdu provides cross-platform interchange between Line 2 of Chengdu Metro and Chengdu–Dujiangyan Intercity Railway of the national rail transport system. It is the first implementation of cross-platform interchanges between different train categories in China.
The only cross-platform interchange of the Cologne premetro network is Ebertplatz station, where passengers can change easily between high and low floor lines sharing an island platform for each direction.
Duisburg premetro network includes two cross-platform interchange stations, Duisburg Main Railway Station for same-direction interchange and König-Heinrich-Platz station for opposite-direction interchange.
Düsseldorf premetro network contains a four-track route between Düsseldorf Main Railway Station and Heinrich-Heine-Allee station comprising two island platforms for same-direction cross-platform interchange at each station; while at both mentioned stations, the two platforms are located parallel, they are built one above the other at both intermediate stations.
Essen premetro network includes two stations with cross-platform interchange on two parallel island platforms at Essen Main Railway Station and Essen Rathaus station; cross-platform connections at Essen Main Railway Station are between standard-gauge premetro lines and metre-gauge sub-surface tram lines.
At Konstablerwache station, Frankfurt's suburban train lines S1 to S6, S8 and S9 and Frankfurt premetro lines U6 and U7 share one island platform for each direction, with the suburban railway (inner) side of the platforms being much longer than for the premetro. Also, the premetro station located at Frankfurt (Main) Main Railway Station was once designed for cross-platform transfers between different Frankfurt premetro lines but is now only used by premetro lines U4/U5 running along the same corridor.
Guangzhou's metro line 3 offers two cross-platform interchanges by 2011, one with line 2 at Jiahewanggang station and one between both sections of line 3 at Tiyu Xilu station; in the latter, the northern section of line 3 terminates at the center track serving both island platforms connecting to the southern section of line 3 stopping at the outer tracks. Shayuan station is prepared to offer cross-platform interchanges between line 8 and the extended Guangfo line, with one direction on top of the other, in the future.
Hamburg metro offers cross-platform interchanges at Barmbek (between circle and branch of metro line U3), Berliner Tor (between metro lines U2/U4 and U3), Kellinghusenstraße (between metro lines U1 and U3) and Wandsbek-Gartenstadt (between metro lines U1 and U3) metro stations; all cross-platform interchanges are also timetable coordinated to make it as easy and convenient for the passengers as possible.
Another cross-platform interchange is used at the northwestern terminus of metro line U1 at Norderstedt Mitte station where metros use the outer tracks and interconnect with the non-electrified suburban line A2 of AKN private railway company terminating on the center track in between the two island platforms.
In the Mass Transit Railway (MTR) system of Hong Kong, cross-platform interchange stations first appeared at Mong Kok and Prince Edward stations when Tsuen Wan Line was opened. The interchange is two stations long, with inverse cross-platform interchange assigned to Prince Edward and same-direction interchange to Mong Kok as large volumes of traffic had been anticipated in both modes.
Popular with passengers, this design was repeated on Admiralty Station when the Island Line was opened to deal with the heavy opposite-direction interchange anticipated. Years later, another interchange spanning Tiu Keng Leng Station (same direction) and Yau Tong Station (opposite direction) was built to the same configuration as Mong Kok and Prince Edward (see diagram).
The Ma On Shan Line is specifically designed to follow right-hand traffic rules unlike other railway lines in Hong Kong to enable a single-direction cross-platform interchange at Tai Wai Station to the East Rail Line while keeping all platforms at roughly the same height.
Another configuration found in Lai King Station makes commute in both directions more convenient by aligning both tracks leading towards city next to each other on one level, and both tracks leading away from city next to each other on the other level.
By connecting East Rail and West Rail lines at Hung Hom without through-running, both lines terminate there alternating on both East/West Rail platforms to offer cross-platform interchanges.
At Sunny Bay station, passengers on the Tung Chung Line from the city can make a cross-platform interchange to a Disneyland Resort Line Train. However this is not the case when returning to the city from Hong Kong Disneyland.
In London's deep-level tube network, these usually occur in pairs for both directions of two lines. This allows for extremely quick and convenient interchange. The effect is that the two lines, despite having completely separate operation, can be treated by passengers as branches of a single network.
- Finchley Road offers cross platform transfers between the Metropolitan and Jubilee lines at surface level.
- Mile End has cross platform transfers between the District and Central lines at sub-surface level.
- Stratford has cross platform between the Central line and Abellio Greater Anglia services.
- For the deep-level interchanges the term "same level interchange" is sometimes preferred as there is invariably an intermediate circulating area between the platforms. Convenient same level interchanges feature at various Victoria line stations including Stockwell and Euston with the Northern Line, Oxford Circus with the Bakerloo, Highbury and Islington with the Northern City Line and Finsbury Park with the Piccadilly. A cross platform interchange also features at Baker Street between the Bakerloo and Jubilee lines.
- Both Barons Court and Hammersmith have cross platform transfers between the Piccadilly and the District.
Lisbon Metro has cross unidirectional platform interchanges at Baixa-Chiado Station, from northbound blue line to southbound green line and at Campo Grande station from southbound green line to southbound yellow line.
Madrid metro uses cross-platform interchanges mainly for easy transfer between urban and suburban sections operated separately on metro lines 7 (Estadio Olimpico), 9 (Puerta de Arganda) and 10 (Tres Olivos). At Casa de Campo station, metro lines 5 and 10 are interconnected cross-platform with line 5 terminating on center track in between the island platforms shared with line 10. At Principe Pio station, metro lines 6 and 10 share an island platform for each direction. Further applications of cross-platform interchanges connect only one direction of each line, for example at Pinar de Chamartin station between metro lines 1 and 4.
Melbourne's suburban railway offers cross-platform interchanges along the City Loop according to the operation concept depending on time and day. All three underground stations consist of four tracks and two island platforms one above each other.
Two transfer stations in Montreal feature cross-platform interchange. At Lionel-Groulx station, the upper platforms serve Henri-Bourassa or Montmorency (orange line 2) and Honoré-Beaugrand (green line 1) trains, entering downtown; the lower platforms serve Côte-Vertu (orange line 2) and Angrignon (green line 1) trains, leaving downtown. Since most transferring passengers are either entering or leaving downtown, most transfers at this station are cross-platform.
At Snowdon station, however, the outbound orange line platforms are at the same level as the blue line terminal platform, with the inbound orange line platforms linked to the blue line departure platform, reducing efficiency. This is explained because the blue line was originally planned to be continued west of the station, in which case this arrangement would have provided the same benefit as the arrangement at Lionel-Groulx.
The following stations have cross-platform interchanges in Moscow Metro:
- Kitay-gorod has the cross-platform interchanges between Tagansko-Krasnopresnenskaya and Kaluzhsko-Rizhskaya lines.
- Tretyakovskaya offers passengers to cross between Kaluzhsko-Rizhskaya and Kalininsko-Solntsevskaya lines.
- Kuntsevskaya has a cross-platform interchange between westbound Arbatsko-Pokrovskaya line platform and termination platform of Filyovskaya line.
- Kashirskaya – cross-platform interchange between Zamoskvoretskaya and Kakhovskaya lines.
- Park Pobedy, between Arbatsko-Pokrovskaya and Kalininsko-Solntsevskaya lines
There is also cross-platform interchange under construction:
- Petrovsko-Razumovskaya, between Serpukhovsko-Timiryazevskaya and Lyublinsko-Dmitrovskaya lines. Planned to open 2014.
Munich metro offers coordinated cross-platform connections at both Scheidplatz (metro lines U2/U3) and Innsbrucker Ring (metro lines U2/U5) metro stations; all same-direction connections are optimised, so that usually U2 and U3 respectively U5 trains of the same direction arrive, stop and depart at the same time.
Neuperlach Süd is a combined station for Munich metro and Munich suburban rail. Original plans intended cross-platform interchanges in both directions at parallel island platforms. However, Munich suburban rail is still single-track there and offers therefore only cross-platform interchange in the outbound direction and from outbound (terminating) Munich metro U5 services to inbound Munich suburban rail S7 services. Although possible, the arrival and departure times of both lines are not matched together.
Within the Munich S-Bahn (suburban rail) network, Westkreuz, Giesing, Berg am Laim and Besucherpark junction stations offer cross-platform interchanges for transfers between both branches. Under discussion are cross-platform interchanges in the same running direction for connecting the central bypass to the existing trunk route at least at Laim and Leuchtenbergring stations.
At Donnersbergerbrücke suburban station, cross-platform interchanges can be made in the same running direction between the S-Bahn lines along the trunk route and lines S7, S27, BOB; although not interconnected by timetables. However, the S-Bahn lines along the trunk route run frequently during most of the day: every 2 to 6 minutes on lines except S7, and every 2 to 4 minutes including the S7.
At Ostbahnhof, cross-platform interchanges have been possible since 2004 between regional trains from Rosenheim and Mühldorf to S-Bahn lines towards Ebersberg, Erding and Munich Airport (only in these directions).
Further cross-platform interchanges between Munich S-Bahn and regional trains can be made at Freising, Petershausen, Geltendorf, Grafing Bahnhof and Markt Schwaben stations, as Munich S-Bahn partly runs on mainline tracks anyway.
New York City
Platform diagram of Hoyt–
Schermerhorn Streets station
The New York City Subway has many three- or four-track lines with local and express service. Cross-platform interchanges are located in numerous locations throughout the system to allow for convenient transfers between express and local trains. In general, express trains run on the inner pair of tracks and bypass local-only stations, while local trains run on the outer pair of tracks and stop at every station. Express stations typically have island platforms between the express and local tracks, allowing passengers to quickly switch between trains heading in the same direction, simply by crossing a narrow platform.
In addition to the very common express-local interchanges, the New York City Subway also has several cross-platform interchanges between lines that do not share a three- or four-track right-of-way. A principal example is the Queensboro Plaza station with its same-directional cross-platform transfer between the IRT Flushing Line and BMT Astoria Line. The Hoyt–Schermerhorn Streets station and the Jay Street – MetroTech station in Brooklyn allows cross-platform interchanges between the G train of the IND Crosstown Line or the F train of the IND Culver Line, respectively, and the A C trains of the IND Fulton Street Line, but the Fulton Street Line does not have any track connections with the Crosstown or Culver Lines. The same concept exists on the Seventh Avenue station on the B D E trains; there are no track connections between the E train on the IND Queens Boulevard Line and the B D trains on the IND Sixth Avenue Line. In this station, there is also a feature unique to the New York City subway system, as anti-directional cross-platform interchanges can be made here.
The Jamaica hub station of the Long Island Rail Road features coordinated cross-platform interchanges among the many services that stop there. During peak periods, this is enhanced by having three trains arrive at the same time, and a cross-platform interchange can be done by walking through the train on the center track, which is waiting with its doors open on both sides. In the absence of this middle train, interchanging passengers must walk to one end of the long platform, walk to another platform, and then walk back in order to move between trains on the outer two tracks.
Nizhny Novgorod metro's Moskovskaya station is prepared to offer cross-platform interchanges at a later point of time between both metro lines; as of 2011, both lines terminate there and are connected to through running operation eliminating any needs to change trains.
A cross-platform transfer exists between the Port Authority Trans-Hudson rapid transit system and Amtrak and NJT trains at Newark Penn Station, allowing passengers to switch to trains to the World Trade Center.
Paris RER suburban network includes cross-platform interchanges between trains of different lines at several major hubs:
- Châtelet - Les Halles between lines RER A and RER B
- Paris North station between lines RER B and RER D
It also includes cross-platform interchanges between express and local trains at several stations of the RER suburban network:
- RER B at Massy - Palaiseau
- RER E at Val de Fontenay. Its final station Chelles - Gournay also offers cross-platform interchange between local RER E trains and express Transilien P trains.
The suburban services in the German Rhine-Ruhr area include cross-platform interchanges at Dortmund-Dorstfeld station between lines S2 and S4 (including coordinated timetables), at Düsseldorf Main Railway Station and at Essen Main Railway Station.
For information about the Rhine-Ruhr Stadtbahn (premetro) network, see among the related cities (Bochum, Dortmund, Düsseldorf, Essen, Mülheim).
San Francisco Bay Area
Three adjacent stations of the BART system, namely Oakland City Center / 12th Street, 19th Street / Oakland and MacArthur stations, feature cross-platform interchange between the Pittsburgh/Bay Point-San Francisco Airport/Millbrae (yellow) line and the Richmond-Fremont (orange) line. The trains are so timed that the trains bound for Bay Point and for Richmond arrive at the same time at the 19th Street station; the trains might arrive at the same time at the other stations too, but that is not guaranteed.
In a separate location, only MacArthur station has enough platforms to enable such "timed" transfer between trains bound for San Francisco Airport/Millbrae and for Fremont. Also a cross-platform interchange exists at the Millbrae Intermodal Terminal in Millbrae, CA, between Caltrain commuter rail service, and BART service at the Millbrae Station.
Santiago de Chile
Vicuña Mackenna metro station is the only in the metro network of Santiago de Chile offering cross-platform transfer; the through-running line 4 and its shuttle line 4A are interconnected cross-platform here. Line 4A uses the center track between both island platforms, with line 4 stopping on the outer tracks.
Seoul Subway Geumjeong Station offers cross-platform transfer between Line 1 local services and all 4 services. Gimpo Airport Station also offers cross-platform transfer between all Line 9 services and AREX local service. Also several Line 1 stations offer cross-platform transfer between trains heading to Incheon or Cheonan/Sinchang.
Oriental Sports Center Station offers cross-platform interchange between Lines 6 and 11.
The Mass Rapid Transit system in Singapore has a similar two-station transfer arrangement to allow quick transfers between North South and East West lines. Both City Hall MRT Station and Raffles Place MRT Station have double underground island platforms stacked on top the other, allowing commuters to switch trains to a different line by walking across the same platform at the appropriate station.
Jurong East MRT Station has a less complicated arrangement, with the terminating rail for the North South Line aligned between that of the East West Line, allowing commuters to alight and board simultaneously on either side, with an additional rail for the North South Line used during peak hours. Tanah Merah MRT Station also has a less complicated arrangement, with the terminating rail for the East West line Changi Airport Extension aligned between that of the East West line Main Line, allowing commuters to alight and board simultaneously on either side.
The Bayfront MRT Station has provisions made for a cross-platform interchange between the Marina Bay branch of the Circle Line and Downtown Line; the original plans for Promenade MRT Station contained a similar arrangement but the existing Circle Line tracks to and from Dhoby Ghaut need to be crossed at the same levels by Downtown Line trains.
Tekhnologichesky Institut offers cross-platform interchange between lines 1 and 2.
Stockholm Metro includes cross-platform interchanges at T-Centralen (Main Railway Station), Gamla stan and Slussen metro stations between red and green metro lines, where T-Centralen (Main Railway Station) offers opposite-direction connections while the latter two make cross-platform connections possible in the same direction. Additionally, passengers between Nockebybanan and green metro lines can change cross-platform at Alvik station.
The Sydney Trains suburban railway system offers cross-platform interchange at Central between express and local trains to/from Strathfield as well as on the four-track section from Westmead to St Marys along the Western Line, each in the same direction. Selected cross-platform interchanges can also be made at Glenfield, Granville, Hornsby, Lidcombe, Redfern, Revesby and Town Hall.
The Taipei Metro has four stations for cross-platform interchanges: Chiang Kai-shek Memorial Hall Station (between the Songshan-Xindian Line and Tamsui-Xinyi Line), Ximen Station (between the Songshan-Xindian Line and Bannan Line), Guting Station (between the Songshan-Xindian Line and the Zhonghe-Xinlu Line) and Dongmen Station (between Zhonghe-Xinlu Line and the Tamsui-Xinyi Line). All these stations have two island platforms on different floors, most of them are same-direction cross-platform configuration except Dongmen Station which has an inverse cross-platform.
Beitou Station allows for cross-platform transfers for southbound trains only due to differing operating routes.
Sadeghieh metro station of Tehran metro offers cross-platform interchanges between both terminating metro lines 2 and 5; while suburban line 5 uses the outer tail tracks of each platform, metro line 2 uses one platform for alighting and the other for boarding.
At Omotesandō Station, transfer between Ginza Line and Hanzōmon Line can be done on its two island platforms at the same level. Shirokane-takanawa Station uses the same way to offer cross-platform interchange between Namboku Line and Mita Line.
In JR-East commuter network at Shinjuku Station, transfer between Yamanote Line and Chūō-Sōbu Line uses directional cross-platform interchange on two parallel island platforms. Between Tamachi and Tabata, cross-platform interchange is between Yamanote Line and Keihin-Tohoku Line. At Ochanomizu Station cross-platform interchange is between Chūō-Sōbu Line and Chūō Rapid Line.
Vienna metro optimised cross-platform connections at Längenfeldgasse station between lines U4 and U6 by demanding trains to wait as soon as the connecting train is approaching in case of delays or during different train intervals operated; this additional functionality is carried out by a special white light signal demanding the driver to wait. Before line U2 was extended from Schottenring further east, U2 trains terminated at (upper) U4 platform level on a center track sharing platforms with U4 trains on both sides; originally, this station level had been used for merging U2 and U4 lines and consisted of 4 tracks with 2 island platforms, but both platforms were merged to a single island platform after U2 extension opened.
Line 2 and Line 4 of Wuhan Metro's Hongshan Square Station and Zhongnan Road Station offer paired cross-platform interchange for passengers riding between 4 directions of the two lines. The configuration for the two stations is similar to that of Mong Kok and Prince Edward stations in Hong Kong's Mass Transit Railway.
Passengers riding on Line 2 from Hankou wishing to reach Wuchang Railway Station, can transfer at Zhongnan Road Station by crossing the platform. Those who going to Wuhan Railway Station, can transfer at Hongshan Square Station by crossing the platform, and vice versa.
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