High Speed 4-way
OpenTTD Manual
Installation · Tutorial
FAQ · Game Interface
README.md
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
Building depots
Dual tunnels
Sideline U Turn
Right-of-way Lane Change
Priority 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

The High Speed 4-way junction was designed for a train length of 6 tiles (12 wagons) at full speed.

High Speed 4 way junction (right side traffic)

Junction Criteria
CostHigh
Construction DifficultyVery Hard
TunnelsYes
BridgesNo
Breakdowns
Broken down trains only affect the one track.
Sharpest Turn6
HillsYes
Split Before MergeYes
Direct PathsYes
Natural TurnsYes
DeadlockNo
LoopsNo
Signal type Any
  • Can handle a large amount of traffic
  • Uses 38x38 tiles
  • Can be made larger for longer trains
  • Long diagonal right turns can be moved inwards to save some space
  • Copy and paste patch recommended