Priority - Revision history

Benny: Small changes, added links/changed some sentences etc

2013-12-17T09:40:08Z

Small changes, added links/changed some sentences etc

Benny: Added see also

2013-12-04T09:15:49Z

Added see also

Benny at 07:29, 7 November 2013

2013-11-07T07:29:04Z

Vitus: image size; presignal prio over bridge and combined PBS prio

2010-08-29T15:24:34Z

image size; presignal prio over bridge and combined PBS prio

Bodo Thiesen: fixed and/or improved inter guides linking

2010-07-19T16:18:50Z

fixed and/or improved inter guides linking

Petert: Standard + two-way signal priorities

2009-12-15T00:48:33Z

Standard + two-way signal priorities

KenjiE20: Undo revision 11049 by Petert if it shouldn't be used, it shouldn't be on here

2009-12-13T12:29:09Z

Undo revision 11049 by Petert if it shouldn't be used, it shouldn't be on here

Petert: Prio with regular Signals

2009-12-13T05:43:38Z

Prio with regular Signals

Petert: /* Standard prio over a bridge */ Two apostrophes at "you'll" caused italcs to be used

2009-12-13T04:21:54Z

‎Standard prio over a bridge: Two apostrophes at "you'll" caused italcs to be used

Resurrection: Added points made more in line with rest of the article.

2009-10-27T18:20:35Z

Added points made more in line with rest of the article.

@@ Line 1: / Line 1: @@
-[[Oneway_or_Twoway_Presignals|<< Oneway or Twoway Presignals]] | [[Guides:Presignals|^^ Back to Presignals Guides Index]] | [[Balancing|Balancing >>]]
+Priorities, or prios, are a type of signal [[Logic|logic]] used in [[Merger|mergers]]. Priorities can be made in many ways, all which will be covered here.
-----
-−
-Priorities, or prios, are constructions we use to give an important track priority over another, less important track. Priority can be made in many ways, all which will be covered here.
 ==Using two-way signals==
@@ Line 10: / Line 7: @@
 ==Standard prios==
-This is the preferred way to make prios; it can be made infinitely long without causing any delays. It works as follows: a train on the mainline triggers the first of the combo signals on the parallel prio track, which then triggers all combos in the row, effectively making trains on the sideline wait when a train on the mainline is within 9 tiles of the merging point.
+This type of priority can be made infinitely long without causing any delays. It works as follows: a train on the mainline triggers the first of the combo signals on the parallel prio track, which then triggers all combos in the row, effectively making trains on the sideline wait when a train on the mainline is within 9 tiles of the merging point.
 [[File:standard_prio.PNG|684px|thumb|none|A standard priority using a parallel track; the most common in our games]]
@@ Line 26: / Line 23: @@
 [[File:standard_prio_bridge.PNG|684px|thumb|none|A standard prio over a bridge using a parallel track.]]
-The risk using this construction is that the gap between the connections to the parallel track becomes longer than the train on the mainline, in which case the prio won't trigger. This makes it pretty much un-usable for networks with trainlengths shorter than 4.
+The risk using this construction is that the gap between the connections to the parallel track becomes longer than the train on the mainline, in which case the prio won't trigger. This makes it pretty much un-usable for networks with [[Train length|trainlengths]] shorter than 4.
 ==Presignal prio over a bridge==
@@ Line 34: / Line 31: @@
 ==PBS prio==
-PBS introduced some interesting ways to make prios. This prio does exactly the same as the pre-signalled one:
+[[PBS]] introduced some interesting ways to make prios. This prio does exactly the same as the pre-signalled one:
 [[File:standard_prio_pbs.PNG|684px|thumb|none|A standard 9-tile long PBS prio]]

← Older revision		Revision as of 09:15, 4 December 2013
Line 54:		Line 54:

	[[File:Used tunnel prio.png\|684px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]		[[File:Used tunnel prio.png\|684px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]
		+
		+	== See also ==
		+
		+	*[[Logic]]
		+	*[[Two-way Prio]]
		+

	----		----

← Older revision		Revision as of 07:29, 7 November 2013
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	[[Oneway_or_Twoway_Presignals\|<< Oneway or Twoway Presignals]] \| [[Guides:Presignals\|^^ Back to Presignals Guides Index]] \| [[Balancing\|Balancing >>]]		[[Oneway_or_Twoway_Presignals\|<< Oneway or Twoway Presignals]] \| [[Guides:Presignals\|^^ Back to Presignals Guides Index]] \| [[Balancing\|Balancing >>]]
	[[Category:Guides]]		[[Category:Guides]]
		+	[[Category:Basic networking]]

@@ Line 7: / Line 7: @@
 This is the easiest way to create priority. Use it with care though; when you have multiple two-way combo signals in a row the entire row will be red if one further down the line is, which will cause trains behind the one triggering the prio to stop. This kind of prio should be limited to one combo signal and an exit signal, making it only useful for very short trains or to avoid obstacles in more advanced prios.
-[[File:twoway_prio.PNG|400px|thumb|none|Showing the maximum length a prio of this kind should be]]
+[[File:twoway_prio.PNG|684px|thumb|none|Showing the maximum length a prio of this kind should be]]
 ==Standard prios==
 This is the preferred way to make prios; it can be made infinitely long without causing any delays. It works as follows: a train on the mainline triggers the first of the combo signals on the parallel prio track, which then triggers all combos in the row, effectively making trains on the sideline wait when a train on the mainline is within 9 tiles of the merging point.
-[[File:standard_prio.PNG|400px|thumb|none|A standard priority using a parallel track; the most common in our games]]
+[[File:standard_prio.PNG|684px|thumb|none|A standard priority using a parallel track; the most common in our games]]
 Note that you don't actually have to connect the parallel track to every gap between the signals, as long as the gap between the connections is not longer than the shortest trains on the network you're fine.
@@ Line 19: / Line 19: @@
 If you run out of room, sometimes using two-way signals ''and'' standard priorities is necessary.
-[[File:standard_prio_and_two-way.png|400px|thumb|none|A standard prio combined with two-way signals.]]
+[[File:standard_prio_and_two-way.png|684px|thumb|none|A standard prio combined with two-way signals.]]
 ==Standard prio over a bridge==
 When you're building compact hubs you'll often find this trick to come in handy.
-[[File:standard_prio_bridge.PNG|400px|thumb|none|A standard prio over a bridge using a parallel track.]]
+[[File:standard_prio_bridge.PNG|684px|thumb|none|A standard prio over a bridge using a parallel track.]]
 The risk using this construction is that the gap between the connections to the parallel track becomes longer than the train on the mainline, in which case the prio won't trigger. This makes it pretty much un-usable for networks with trainlengths shorter than 4.
 ==PBS prio==
 PBS introduced some interesting ways to make prios. This prio does exactly the same as the pre-signalled one:
-[[File:standard_prio_pbs.PNG|400px|thumb|none|A standard 9-tile long PBS prio]]
+[[File:standard_prio_pbs.PNG|684px|thumb|none|A standard 9-tile long PBS prio]]
 ==PBS prio over bridge==
-The most interesting prio PBS introduces is the prio over a bridge. Using this technique you don't need a parallel track to have priority over a bridge, also you don't have to worry about the long gap between the connections anymore.
+The most interesting prio PBS introduces is the prio over a bridge. Using this technique you don't need a parallel track to have priority over a bridge, also you don't have to worry about the long gap between the connections anymore. Don't forget to use twoway signals at bridge exit, because PBS is likely to fail when combining twoway signal with oneway one.
-[[File:pbs_prio_bridge.PNG|400px|thumb|none|Using this mix of PBS and pre-signalling you can have prio over bridges without parallel tracks]]
+[[File:pbs_prio_bridge.PNG|684px|thumb|none|Using this mix of PBS and pre-signalling you can have prio over bridges without parallel tracks]]
 ==Limited space==
 Facing limited space is proverbial daily bread when it comes to joining or merging lines. Here are two examples using knowledge explained above how to build priority while keeping space used at minimum.
-[[File:Same side prio.png|400px|thumb|none|Priority built at the same side as the joining track using combo pre-signal on the main track]]
+[[File:Same side prio.png|684px|thumb|none|Priority built at the same side as the joining track using combo and exit pre-signals on the main track]]
-[[File:Used tunnel prio.png|400px|thumb|none|Priority built over used tunnel using PBS and combo pre-signal]]
+[[File:Used tunnel prio.png|684px|thumb|none|Priority built over used tunnel using PBS and combo pre-signal]]
 ----
 [[Oneway_or_Twoway_Presignals|<< Oneway or Twoway Presignals]] | [[Guides:Presignals|^^ Back to Presignals Guides Index]] | [[Balancing|Balancing >>]]
 [[Category:Guides]]

← Older revision		Revision as of 16:18, 19 July 2010
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		+	[[Oneway_or_Twoway_Presignals\|<< Oneway or Twoway Presignals]] \| [[Guides:Presignals\|^^ Back to Presignals Guides Index]] \| [[Balancing\|Balancing >>]]
		+	----
		+
	Priorities, or prios, are constructions we use to give an important track priority over another, less important track. Priority can be made in many ways, all which will be covered here.		Priorities, or prios, are constructions we use to give an important track priority over another, less important track. Priority can be made in many ways, all which will be covered here.

Line 41:		Line 44:

	[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]		[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]
		+
		+	----
		+	[[Oneway_or_Twoway_Presignals\|<< Oneway or Twoway Presignals]] \| [[Guides:Presignals\|^^ Back to Presignals Guides Index]] \| [[Balancing\|Balancing >>]]
		+	[[Category:Guides]]

← Older revision		Revision as of 00:48, 15 December 2009
Line 12:		Line 12:

	Note that you don't actually have to connect the parallel track to every gap between the signals, as long as the gap between the connections is not longer than the shortest trains on the network you're fine.		Note that you don't actually have to connect the parallel track to every gap between the signals, as long as the gap between the connections is not longer than the shortest trains on the network you're fine.
		+
		+	==Standard prio and two-way signals combined==
		+	If you run out of room, sometimes using two-way signals ''and'' standard priorities is necessary.
		+
		+	[[File:standard_prio_and_two-way.png\|400px\|thumb\|none\|A standard prio combined with two-way signals.]]

	==Standard prio over a bridge==		==Standard prio over a bridge==

← Older revision		Revision as of 12:29, 13 December 2009
Line 36:		Line 36:

	[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]		[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]
−
−	~~==Prio using regular signals==~~
−	~~It is possible to have a very strange looking, quite buggy priority in OpenTTD. This is using regular block signals. Note that this should not be used during PSG games.~~
−	~~[[File:Strange_regular_signal_prio.png\|400px\|thumb\|none\|Priority using regular signals and connecting some lines.]]~~

← Older revision		Revision as of 05:43, 13 December 2009
Line 36:		Line 36:

	[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]		[[File:Used tunnel prio.png\|400px\|thumb\|none\|Priority built over used tunnel using PBS and combo pre-signal]]
		+
		+	==Prio using regular signals==
		+	It is possible to have a very strange looking, quite buggy priority in OpenTTD. This is using regular block signals. Note that this should not be used during PSG games.
		+	[[File:Strange_regular_signal_prio.png\|400px\|thumb\|none\|Priority using regular signals and connecting some lines.]]