Advanced Roundabout

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Unlike the basic roundabout, this junction has 1 level above the default Track-Level. Trains can pass straight through and turn right without entering the circle.

Some problems are minimized by using pre-signals

Advanced roundabout junction
Advanced roundabout junction


Junction Criteria
CostExpensive (Stepped)
Construction DifficultyModerate
TunnelsYes
BridgesNo
Breakdowns
Broken down trains affect one line or all left turns.
Sharp TurnsNo
HillsYes
Split Before MergeNo
Direct PathsYes
Natural TurnsNo
DeadlockYes
LoopsYes
Signal type Pre-Signal
  • Can handle lots of trains moving N-E or S-W
  • Tracks split and only trains going to the left need to take the round-a-bout

Tips

  • To allow left-turning trains traveling at full speed through the roundabout, its possible to enlarge

the circle, but this takes a lot of space to build.

  • If you make the inner circle run the opposite way (obviously modifying exit diagonals and signal direction) throughput is increased at the expense of some speed, since trains going up there just cut across instead of having to go round the whole roundabout as tey would with the above.
  • Area: 16 x 16


Flying roundabout junction
Flying roundabout junction


  • Area: 14 x 14
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