Quad Branch-Merge Junction
Quad Branch Merge Junction
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.)
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.