Roundabout
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
- Over-Under
- 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
- Double Cloverleaf
- Dual Tetrathorp
- Dual Branch-Merge
- Quad Branch-Merge
- 6-tuple Branch-Merge
- 8-Way Star
- High Speed 4-way
Other junctions
Track Layouts
Unuseful junctions
The Roundabout consists of a circular route one-way with different entrances and exits.
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Contents |
Roundabout with path based signals (PBS)
Constructing a roundabout with PBS at its entries allows multiple trains to use the junction. Since there are no signals within the loop, deadlocks become impossible.
The goods train [A] passes the junction from the upper right to the lower left corner (1 to 3). This does neither affect the passenger train [B] (3 to 4) nor the cattle train [C] (4 to 1).
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Roundabout with PBS and bridges
This slight modification allows crossing trains not to interfere with each other.
Without bridges, both the grain [A] and steel train [B] would go through the roundabout, causing one of both trains to wait for the other one to pass by. The additional paths for trains just going straight ahead increase the roundabout's efficiency even more, without need of additional space!
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Variations
- When you make it bigger, you can create an 8-way roundabout.
Split Roundabout
This modification allows trains to pass faster.
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