modified: en/Manual/Signals

User Summary: Move path signals to the beginning and label others as Legacy

Page/en/Manual/Signals.mediawiki

@@ -5,42 +5,6 @@
 '''[[en/Manual/Railway construction]] Signals''' are useful devices that allow you to control [[en/Manual/Trains]] movement. They do this by preventing trains from entering areas where other trains might be, and so preventing them from crashing. This usually involves taking information from the section of track following the signal. The three main types of signal are block signals, which simply deny access if the section has any trains; pre-signals, which operate similarly, but also require there to be an available exit from the section; and path signals, which compares the train's desired path to current train presence and allows access if the two do not interfere.
 
 __TOC__
-{{en/-}}
-== Block signals ==
-Block signals divide tracks into blocks, and operate according to the train movement on the blocks. Block signals stop the train if the next block of track is occupied by a train, and show red. If not, it allows it to pass and is green. Any and all track tiles physically reachable from the signal up to the next signal on that track are counted as the same block, regardless if there are multiple branches. Even if the expected path of the train does not collide with the path of the other train which is currently occupying the block, the block signal will not authorize the train in front of it to enter the block ahead, as opposed to [[#path-signals|path signals]].
-
-===Two-way signal===
-[[File:en/Manual/2-way signals.png|frame|Two-way signals at a loading station]]
-<div style="float:right">
-[[File:en/Manual/Two-way signal.png]]
-</div>
-Two-way signals are used in a railway that has trains moving in both directions on the same track.  The most common use is at end-of-line stations, where trains enter and exit the same end of the station.  In the example at the right, the signals direct the next train to come into the empty loading bay.  They also prevent the train from leaving the loading bay if another train is in the way.
-
-If a train has a choice of two or more directions, each with two-way signals on them, it will choose the direction with a green signal.  If all signals are red it will pick the easiest direction and wait for the signal to change.
-
-Two-way signal was the very first and only railway signal introduced in the original ''[[en/Archive/OpenTTD/Transport Tycoon Deluxe]]''.
-{{en/-}}
-===One-way signal===
-[[File:en/Manual/One-way signal.png|right]]
-
-One-way signals limit train movement to one direction. In the example below, the signals force the trains to move in a circle.
-
-[[File:en/Manual/1-way signal loop.png|frame|center|One-way signals in a loop]]
-
-There are two main situations where these signals are more useful than simple block signals:
-*[[en/Manual/Building railway stations#single-stations|RoRo stations]] allow trains to stop at a station without reversing out and blocking the entry. This makes trains enter and exit stations more efficiently.
-*Double tracks allow more than 2 trains to travel without them reversing into each other. On a single-track line, if a train is present, then no trains can move in the opposite direction because they will collide at some point. On a double-track line any train can take one direction and they will never collide, meaning trains don't have to wait for other trains, and can always move on that line.
-
-If a train arrives at the wrong side of a one-way signal, it will be blocked and immediately reverse unless player has disabled this behavior in the advanced signal options. When using one-way signals, be sure that they are ''all'' facing the correct direction. It is a good idea to watch the first train you run on the newly signaled line all the way to its destination to ensure you haven't made any mistakes. 
-
-Click on an existing two-way signal to toggle it to a one-way signal. Click on it again to change its direction (leaving it one-way); the third time will revert it back to a two-way signal.
-
-If a train has a choice of tracks, each with a one way signal, it will pick the track heading towards its destination (i.e. it will wait until the signal on the track heading towards its destination turns green, as opposed to taking whichever signal is green if one of the signals is red).  This is in contrast with two way signals.
-
-Although the one-way (block) signal appears there is only one side of the signal facing the passing direction, technically speaking, the disappeared signal of the other side still exists and is red permanently to block the entrance from that side. This appearance is not true in the real world signalling system and is misleading for players who wish to learn the usage of the more advanced [[#path-signals|path signalling system]] which is more realistic and efficient in handling junction traffic.
-
-One-way signal was first introduced to ''[[en/Archive/OpenTTD/Transport Tycoon Deluxe]]''.
-
 ==Path signals ==
 [[File:en/Manual/Yapp signalgui.png|frame|right|Two new signal types in the [[en/Manual/Signal GUI]].]]
 
@@ -132,7 +96,43 @@ With this station layout, trains can use both platforms when coming from either
 
 {{en/Feature|0.7}}
 
-==Pre-signals==
+{{en/-}}
+== Legacy Block signals ==
+Block signals divide tracks into blocks, and operate according to the train movement on the blocks. Block signals stop the train if the next block of track is occupied by a train, and show red. If not, it allows it to pass and is green. Any and all track tiles physically reachable from the signal up to the next signal on that track are counted as the same block, regardless if there are multiple branches. Even if the expected path of the train does not collide with the path of the other train which is currently occupying the block, the block signal will not authorize the train in front of it to enter the block ahead, as opposed to [[#path-signals|path signals]].
+
+===Two-way signal===
+[[File:en/Manual/2-way signals.png|frame|Two-way signals at a loading station]]
+<div style="float:right">
+[[File:en/Manual/Two-way signal.png]]
+</div>
+Two-way signals are used in a railway that has trains moving in both directions on the same track.  The most common use is at end-of-line stations, where trains enter and exit the same end of the station.  In the example at the right, the signals direct the next train to come into the empty loading bay.  They also prevent the train from leaving the loading bay if another train is in the way.
+
+If a train has a choice of two or more directions, each with two-way signals on them, it will choose the direction with a green signal.  If all signals are red it will pick the easiest direction and wait for the signal to change.
+
+Two-way signal was the very first and only railway signal introduced in the original ''[[en/Archive/OpenTTD/Transport Tycoon Deluxe]]''.
+{{en/-}}
+===One-way signal===
+[[File:en/Manual/One-way signal.png|right]]
+
+One-way signals limit train movement to one direction. In the example below, the signals force the trains to move in a circle.
+
+[[File:en/Manual/1-way signal loop.png|frame|center|One-way signals in a loop]]
+
+There are two main situations where these signals are more useful than simple block signals:
+*[[en/Manual/Building railway stations#single-stations|RoRo stations]] allow trains to stop at a station without reversing out and blocking the entry. This makes trains enter and exit stations more efficiently.
+*Double tracks allow more than 2 trains to travel without them reversing into each other. On a single-track line, if a train is present, then no trains can move in the opposite direction because they will collide at some point. On a double-track line any train can take one direction and they will never collide, meaning trains don't have to wait for other trains, and can always move on that line.
+
+If a train arrives at the wrong side of a one-way signal, it will be blocked and immediately reverse unless player has disabled this behavior in the advanced signal options. When using one-way signals, be sure that they are ''all'' facing the correct direction. It is a good idea to watch the first train you run on the newly signaled line all the way to its destination to ensure you haven't made any mistakes. 
+
+Click on an existing two-way signal to toggle it to a one-way signal. Click on it again to change its direction (leaving it one-way); the third time will revert it back to a two-way signal.
+
+If a train has a choice of tracks, each with a one way signal, it will pick the track heading towards its destination (i.e. it will wait until the signal on the track heading towards its destination turns green, as opposed to taking whichever signal is green if one of the signals is red).  This is in contrast with two way signals.
+
+Although the one-way (block) signal appears there is only one side of the signal facing the passing direction, technically speaking, the disappeared signal of the other side still exists and is red permanently to block the entrance from that side. This appearance is not true in the real world signalling system and is misleading for players who wish to learn the usage of the more advanced [[#path-signals|path signalling system]] which is more realistic and efficient in handling junction traffic.
+
+One-way signal was first introduced to ''[[en/Archive/OpenTTD/Transport Tycoon Deluxe]]''.
+
+==Legacy Pre-signals==
 Pre-signals are a group of specialised block signals. They are so named because block entry pre-signal input comes from not just the track in the block, but any other pre-signals placed on the other side of the block (that is to say exits from that block). They are used to limit the entry of trains into blocks that cannot be obstructed or occupied. In most cases you can use path signals to solve situations where trains can choose between multiple alternatives, for instance at stations or single-track lines that are used by trains in both directions.
 
 <div style="float:right">