Quad Branch-Merge Junction

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Quad Branch Merge Junction
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{{Other_languages
 
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|en=Quad Branch-Merge Junction
 
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|es=Cruce con ramales cuádruples
The quad branch merge junction is the direct evolution of the [[Branch-Merge Junction]] and dual branch merge junction; allowing four entrances and four exits, in essence doubling the appropriation power of a dual branch merge junction.  Although still in it's infancy, the quad branch merge junction is able to handle quite a load of large trains (20 cars) with very few backups. (Figure A.)
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|fr=Fusion de branches quadruple
 
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|hu=Csomópont/Négyszeres elágazó-egyesülő
[[image:NewQBMJ.png|thumb|Figure A.]]
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|it=Fusione rami quadruplo
 
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|language_page=en
 
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}}
Speculation of angled track under existing bridges will allow at least a 50% increase in train speed; eliminating eight turns that reduce train speed to below 100mph (161kph) The sharpest turns are illustrated in Figure B.
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[[image:QuadBranchMergeJunction.png|none|thumb|500px|Quad Branch-Merge Junction]]
[[image:Sharpcorners.PNG|thumb|Figure B.]]
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{{Template:Junction_Criteria|Very High|4|1|1|2|1|1|0|1|0|0|0||Broken down trains only affect the one track.|
 
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* Can handle a huge amount of traffic
 
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}}
 
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<!--The '''Quad Branch-Merge Junction''' is the direct evolution of the [[Branch-Merge Junction]] and [[Dual Branch-Merge Junction]]; allowing four entrances and four exits, in essence doubling the appropriation power of a Dual Branch-Merge Junction.  Although still in its infancy, the quad branch-merge junction is able to handle quite a load of [[Mammoth trains|large trains]] (20 cars) with very few backups. ([[:Image:NewQBMJ.png|Figure A]])
 
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<center>[[image:NewQBMJ.png|thumb||500px|Figure A.]]</center>
  
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Speculation of [[New Bridges|angled track]] in the [[nightly build]]s under existing [[bridges]] will allow at least a 50% increase in [[trains|train]] speed; eliminating eight turns that currently reduce it to below 100mph (161km/h).  The sharpest turns are illustrated in [[:Image:Sharpcorners.PNG|Figure B]]:
  
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<center>[[image:Sharpcorners.PNG|thumb|center|500px|Figure B.]]</center>-->
  
 
[[Category:Train Junctions]]
 
[[Category:Train Junctions]]

Latest revision as of 21:21, 27 July 2018


Railway Junctions
Junction Criteria

3-Way junctions

Basic 3-Way
Line Merge
Half Cloverleaf
Half Spaghetti
Compact 3-Way
Compact 3-Way B-M Junction
Ultimate 3-way
Half Transmogrified
Braided Junction

4-Way junctions

Basic 4-Way
Roundabout
Cloverleaf
Spaghetti
Star
Complex Star
Branch-Merge
Tetrathorp
High Speed 4-Way Fly-over/under
Pre-Signaled Roundabout
Advanced Roundabout
Right-of-way Roundabout
Improved Roundabout
Transmogrified
Tightlong
Deepblue2k8 4-way Junction

Enormous junctions

Multi-way/multi-track cloverleaves
Dual Tetrathorp
Dual Transmogrified
Dual Branch-Merge
Quad Branch-Merge
Quad Tetrathorp
6-tuple Branch-Merge
8-Way Star
High Speed 4-way

Other junctions

Right-of-way Depot
Dual tunnels
Sideline U Turn
Right-of-way Lane Change
Right-of-way Merge

Track Layouts

4-Way Triple Axial
4-Way Triple Axial 2
Triple Via Mini
High Hill

Unuseful junctions

Crossover
3/4ths junction
Ultimate 3-way junction for 4 tracks
Quad Branch-Merge Junction
Junction Criteria
CostVery High
Construction DifficultyVery Hard
TunnelsYes
BridgesYes
Breakdowns
Broken down trains only affect the one track.
Sharpest Turn2
HillsYes
Split Before MergeYes
Direct PathsNo
Natural TurnsYes
DeadlockNo
LoopsNo
Signal type Any
  • Can handle a huge amount of traffic
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