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Old January 20th, 2016, 07:03 PM   #1
mrsmartman
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MISC | Subway sections with multiple parallel tracks appreciation thread

This cross section of New York City Subway at Stations got me wondering: which subway sections in the world have multiple parallel running tracks? For example, take a look at the stretch between Howard and Fullerton of the Chicago L.

In New York City, the railway stretch in Manhattan around W 4 St- Wash Sq Pk station has four parallel tracks stacked on top of another 4 parallel tracks.

I'm also wondering which section has the most parallel running tracks in the world.

As a general rule, let's only discuss sections intended for passenger service, so no railway yards etc., with - say - four or more parallel tracks.

To encourage the appreciation of multiple-track subway, all legitimate posts in this thread will be rewarded.
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Old January 20th, 2016, 08:07 PM   #2
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In London you have exclusive four track sections on the Metropolitan between Wembley Park and Harrow-on-the-hill, between Harrow on the hill and a bit beyond Moor Park the Metropolitan has its own slow tracks and shares fast tracks with Chiltern rail services. From Acton Town to Northfields the Picadilly line has four tracks for historical reasons.

Between Wembley Park and Finchley Road you could regard the Jubilee line as slow tracks and the Metropolitan line as fast tracks. Between Acton Town and Barons Court you could regard the District line as slow tracks and Picadilly line as fast tracks.

There are loads of mainline railway sections with four or more tracks, and there are also sections where the underground has two tracks and mainline railway has two tracks that kind of is like a four track section. For example between Bromley by Bow and Upminster the District line and mainline railway has two tracks each, but once upon a time all tracks were part of the same railway.

Maps:
http://carto.metro.free.fr/cartes/metro-tram-london/
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Old January 21st, 2016, 09:29 PM   #3
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Old January 24th, 2016, 03:29 PM   #4
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MTR Airport Express and Tung Chung Line between Nam Cheong and Lai King, Hong Kong

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Old January 24th, 2016, 09:23 PM   #5
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The Copenhagen S-train system has 2 sections of quadruple tracks.


The first section is around 2 km´s from west of Dybblsbro station and until the boulevard tunnel north of the central station.

Both Dybbølsbro and København H (Central station) has 2 platforms with 2 tracks each.


The last section is around 600 meters south of Hellerup station to around 400 meters north of the station.

The station itself has 5 S-train tracks on 3 platforms but also 2 tracks for the Øresund trains.

The øresund train runs on its own tracks so in theory there is 6 tracks on this section but as they are mainline tracks they don´t count.
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Old January 24th, 2016, 10:15 PM   #6
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Track map of Copenhagens rail network, including S-train:
http://dk.trackmap.net/a
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Old January 25th, 2016, 12:17 AM   #7
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If you take Copenhagen with its S-tog, you have to count most of Berlin as well wherever two tracks for the S-Bahn have been added to the two original mainline tracks, the only exception being the North-South line that features S-Bahn only.

Other than that, the NYC subway system with its local and express tracks and services is an odd man out in world and its existence is due to geography. Most lines get bended into Manhattan and out of it again. Without all the water, development wouldn't have been as condensed as it is by a far margin and lines would naturally go into New Jersey as well.
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Old January 25th, 2016, 01:12 PM   #8
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The Chicago CTA has a 6.5 mile (10.5km) stretch with 4 track running. This is from Fullerton to Howard on the Red and Purple lines.
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Old January 25th, 2016, 09:03 PM   #9
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Quote:
Originally Posted by Skalka View Post
If you take Copenhagen with its S-tog, you have to count most of Berlin as well wherever two tracks for the S-Bahn have been added to the two original mainline tracks, the only exception being the North-South line that features S-Bahn only.

Other than that, the NYC subway system with its local and express tracks and services is an odd man out in world and its existence is due to geography. Most lines get bended into Manhattan and out of it again. Without all the water, development wouldn't have been as condensed as it is by a far margin and lines would naturally go into New Jersey as well.
I could add many more lines in Copenhagen if I counted mainline tracks.


The S-tog in Copenhagen runs on its on tracks and doesn´t share any sections with other types of trains so its only a "S-bahn" system by name.
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Old January 25th, 2016, 09:56 PM   #10
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Well, aren't there some freight services using the S-train tracks?
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Old January 26th, 2016, 01:34 AM   #11
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There are parts at the south of Manhattan Island where four tracks appear to change into two without branching. Aren't those massive bottlenecks and affect the frequency of the whole lines?
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Old January 26th, 2016, 06:35 AM   #12
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Quote:
Originally Posted by Skalka View Post
Without all the water, development wouldn't have been as condensed as it is by a far margin and lines would naturally go into New Jersey as well.
It had nothing to do with water but with borders. NJ is a separate state. The Hudson is not that much wider than the East River.
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Old January 26th, 2016, 06:37 AM   #13
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Broad Street subway line in Philadelphia has 4 tracks throughout most of the line.

Here is Walnut-Locust station



http://www.nycsubway.org/perl/show?106604
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Old January 26th, 2016, 08:48 AM   #14
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The only reason the Broad Street has 4 tracks is due to the future expansions to the Northeast and Northwest sections of Philly that never happen.
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Old January 26th, 2016, 08:53 AM   #15
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Quote:
Originally Posted by MiaM View Post

Well, aren't there some freight services using the S-train tracks?
Not to my knowledge, the circle line was the old freight line to the Danlink ferry terminal before the Øresund bridge opened.

The freight train to Dan Steel in Frederiksværk actually takes the datoer around Helsingør in order to use the lokalbanen lines to Frederiksværk.

There are track turnouts to the main line at some points but that is for maintenance purposes.

In 2018 the signaling system will be the same as on New Yorks Subway, CBCT or something like that.
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Old January 26th, 2016, 08:53 AM   #16
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Quote:
Originally Posted by iampuking View Post
There are parts at the south of Manhattan Island where four tracks appear to change into two without branching. Aren't those massive bottlenecks and affect the frequency of the whole lines?
The way its set up is one service heads straight and another turns....usually the one staying straight is the local while express which becomes local on the 2 track lines breaks away. They have massive underground grade separating interchanges , so the services never cross over each other...even if a local service needs to be diverted to an express track...
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Old January 26th, 2016, 07:27 PM   #17
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Quote:
Originally Posted by Woonsocket54 View Post
It had nothing to do with water but with borders. NJ is a separate state. The Hudson is not that much wider than the East River.
And the border followed the water. What I wanted to say is that the situation in New York City can't be compared to any other city in the world because it's both a coastal city and has a densely developed narrow island at its center that more or less dictates a north-south direction of its trunk lines rather than a bunch of radial lines running into all directions, it's like several lines combined in one. The geography allows for one course, but the demand screams for more.
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Old January 26th, 2016, 08:43 PM   #18
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Quote:
Originally Posted by Nexis View Post
The way its set up is one service heads straight and another turns....usually the one staying straight is the local while express which becomes local on the 2 track lines breaks away. They have massive underground grade separating interchanges , so the services never cross over each other...even if a local service needs to be diverted to an express track...
accompanying map:
http://www.nycsubway.org/perl/captio..._manhattan.png
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Old January 26th, 2016, 09:17 PM   #19
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I must say that NYC Subway is a quite unique case, as the entire system has been conceived to have four tracks. Two tracks for express trains and two tracks for the ones which stop at every station

There are few sections which got two tracks alone (just one comes in my mind, with terminus at Battery Park

Even the old elevated viaducts in Manhattan (demolished after the construction of the current tunnels network in roaring '20s) had 4 tracks
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Old January 27th, 2016, 03:24 AM   #20
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I know you said "subway" but I had to add a note: Some japan passenger railway sections have 6 or more tracks served by 'near-subway regular services', in terms of frequency and capacity, and operated by the same entity, (I know it's not subway, I don't want to start that debate here ), but it is really exciting to see many trains running parallel in the same direction at times. Examples in Tokyo are some sections of the Yamanote Loop with 6 tracks, the 8-track section between Ueno and Shinagawa, or 10-track between Kanda and Tokyo (Yamanote + Keihin-Tohoku + Chuo + Tohoku-Tokaido. All JR-operated)
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