Double Cloverleaf
From OpenTTD
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
- Transmogrified
- Tightlong
- High Speed 4-way
Enormous junctions
- Double Cloverleaf
- Dual Tetrathorp
- Dual Branch-Merge
- Quad Branch-Merge
- 8-Way Star
Other junctions
Track Layouts
Unuseful juctions
The Double Cloverleaf is an extended version of a normal Cloverleaf junction. This junction use tunnels instead of bridges, because tunnels don't have speed limits, and you can place signals on top of tunnels (unlike below bridges - doesn't apply anymore as of version 0.6?). As you can see on the image below, there are two tracks leading into the junction and two leading out: the whole reason for a double cloverleaf is to allow more traffic to flow through your line if you have a 4 track mainline.
[edit] Pros
- Double tracked, holds twice the number of trains
- Can handle a large number of trains at the same time.
- Uses separate tracks so trains wont interfere with each other too much.
[edit] Cons
- Branching after merging: Very likely to enter a deadlock state.
- Extremely large
- Trains have to slow down when climbing a slope
- Trains have to turn right to turn left. This could lead to trains getting lost. (Can be fixed using waypoints)
- Doesn't have a direct path so that trains travel extra far to turn left.
- Costly to build
- Difficult layout to remember and to build
