User:VirusSE/Half Cloverleaf

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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
Complex Star
High Speed 4-Way Fly-over/under
Pre-Signaled Roundabout
Advanced Roundabout
Right-of-way Roundabout
Improved Roundabout
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

3/4ths junction
Ultimate 3-way junction for 4 tracks


Half Cloverleaf

The half cloverleaf is, as its name suggests, half a cloverleaf. It can handle a reasonable amount of traffic, but there are better options.

Half Cloverleaf Junction


  • Can handle a large number of trains at a time.
  • Traffic jams less likely.


  • Costs more to build
  • Trains must slow down to climb a slope.
  • Trains must turn left to go right. This could lead to trains getting lost. (Can be fixed by using waypoints).
  • Trains exit the main line before leaving. This could cause traffic problems.
  • Not for larger trains due to great slowdowns from sharp turns in the design.

"Pictures & Rail design tips written by Owen Rudge - please visit his site for more information."

Modified Half Cloverleaf

A slightly modified and optimised version of the half cloverleaf above.

Modified half cloverleaf junction


  • Can handle a large number of trains at a time.
  • Traffic jams less likely than a regular half-cloverleaf, because the exits from main line are before entrances.
  • Takes lesser amount of space vs Half Cloverleaf


  • Trains must slow down to climb a slope.
  • Costs a little to build.


  • Make the distance between entrances and exits the length of your longest trains, plus two squares for signals. This way trains that are waiting at a red signal aren't preventing trains behind it from going down a different track.
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