Presignal Bypass Station - Revision history

Benny: Addde to advanced networking category

2013-12-04T10:56:43Z

Addde to advanced networking category

Benny: Removed from research category.

2013-11-07T08:14:55Z

Removed from research category.

Benny: Added to station category

2013-11-07T07:38:47Z

Added to station category

Strstrep: Changed style, grammar, and spelling

2007-09-07T04:29:58Z

Changed style, grammar, and spelling

Progman at 13:48, 2 September 2007

2007-09-02T13:48:36Z

Progman: User:Progman/Draft Station moved to Presignal Bypass Station

2007-09-02T13:45:29Z

User:Progman/Draft Station moved to Presignal Bypass Station

Progman at 13:25, 2 September 2007

2007-09-02T13:25:00Z

Progman: temp-save, not ready yet

2007-09-02T13:15:54Z

temp-save, not ready yet

New page

As building a drop and pickup station for the secondaries it is always a hard task to build such a station. You must care about flow and speed to get the most effective station, impede by the enviroment like cities, industries and transmitters. What we are talking about are stations with about 20 entries, served by a [[Mainline|ML]] which got 3-4 lines. It require a lot of skills to build a proper joiner after the station and an even better splitter before the station that it can handle a huge amount of trains. This results in a lot of tunnels, brighes, presignal and so on...

==The Idea==

At some time I have thought about a station layout which can handle every traffic amount by extending the station always the same way. My idea was the station is 90 deg turned by the track the trains come from. The trains so passes the station until they find a free slot and enter it. If the traffic is to much I extend the station with new slots. Then you add the presignals and it works... for slow traffic. As a train in the presignal area will block the whole presignal other trains have to wait at the beginning, even if there are a lot of slots free.

[[Image:Blocking the presignal area.png]]

As you see the train which enters the station blocks the other train for joining the last slot. So I thought about some presignal stuff which transport the information "slot is free" from the slots at the end to the presignal at the beginning. I did this with a second line, similar to [[priorities]].

[[Image:Second presignal line.png]]

Notice how the free-slot information is "traveled" thought the marked tiles around the train which blocks a segment. With this presignals the station can enter the presignals even if there already a train on it.

==How to improve the layout==

After the idea the station layout must be improved. As you see only a half of stationslots are used and cannot be used from this side as the signals blocks the entry. But they can be used from the other side.

[[Image:Use the other side.png]]

But how do they exit the station? This is not a real problem, I often use tunnels as followed.

[[Image:Station layout with tunnels.png]]

If the trains leave the station they have enought space in the tunnel to wait if the exit isn't free yet. You can see the exit from the upper part goes east, the exit from the lower part goes west. This can be flipped/switched however you need it. You also see the disadvantage of this layout. This station and all tracks and signals with a TL of 5 are 23 tiles width. You need around 18+TL tiles space for the width. But - and thats the advantage - you can extend this layout as long as you need.

[[Image:Full station with a lot of slots.png]]

You see here again you can choose from where the trains comes and where it go. This can be changed as whatever you want.

[[Category:Research]]

← Older revision		Revision as of 10:56, 4 December 2013
Line 45:		Line 45:

	[[Category:Stations]]		[[Category:Stations]]
		+	[[Category:Advanced Networking]]

← Older revision		Revision as of 08:14, 7 November 2013
Line 45:		Line 45:

	[[Category:Stations]]		[[Category:Stations]]
−	~~[[Category:Research]]~~

← Older revision		Revision as of 07:38, 7 November 2013
Line 43:		Line 43:
	[[Image:Station coal_ore drop ottdcoop.png]]		[[Image:Station coal_ore drop ottdcoop.png]]

		+
		+	[[Category:Stations]]
	[[Category:Research]]		[[Category:Research]]

@@ Line 38: / Line 38: @@
 [[Image:Station goods drop ottdcoop.png]]
 [[Image:Station coal_ore drop ottdcoop.png]]
 [[Category:Research]]

← Older revision		Revision as of 13:25, 2 September 2007
Line 28:		Line 28:

	You see here again you can choose from where the trains comes and where it go. This can be changed as whatever you want.		You see here again you can choose from where the trains comes and where it go. This can be changed as whatever you want.
		+
		+	[[Image:Station diagramm layout.png]]
		+
		+	Thats how it looks in a real game
		+
		+	[[Image:Station goods drop.png]]
		+
		+	And that is how it looks on a real game in an openttdcoop-game
		+
		+	[[Image:Station goods drop ottdcoop.png]]
		+	[[Image:Station coal_ore drop ottdcoop.png]]

	[[Category:Research]]		[[Category:Research]]

@@ Line 1: / Line 1: @@
-As building a drop and pickup station for the secondaries it is always a hard task to build such a station. You must care about flow and speed to get the most effective station, impede by the enviroment like cities, industries and transmitters. What we are talking about are stations with about 20 entries, served by a [[Mainline|ML]] which got 3-4 lines. It require a lot of skills to build a proper joiner after the station and an even better splitter before the station that it can handle a huge amount of trains. This results in a lot of tunnels, brighes, presignal and so on...
+Building a large station, as is needed for pickups and drops for secondary industries, is a difficult task. There are many challenges due to the large capacity. The station must have sufficient flow to prevent jamming.  Cities, industries, and other landmarks provide boundaries to a desired station layout.
 ==The Idea==
-At some time I have thought about a station layout which can handle every traffic amount by extending the station always the same way. My idea was the station is 90 deg turned by the track the trains come from. The trains so passes the station until they find a free slot and enter it. If the traffic is to much I extend the station with new slots. Then you add the presignals and it works... for slow traffic. As a train in the presignal area will block the whole presignal other trains have to wait at the beginning, even if there are a lot of slots free.
+This idea proposes a station that can be extended from a small-scale station to a much larger-scale station by adding platforms in the same pattern, without needing to completely redesign the station as its capacity grows. The station is turned by 90 degrees relative to the track the trains come from. The trains pass through the station until they find a free spot, and then enter it. If the traffic is too heavy, the station can be extended with more platforms. After adding presignals, it works... for slow traffic. As a train in the presignal area will block the whole presignal block, other trains have to wait at the beginning, even if there are a lot of slots free.
 [[Image:Blocking the presignal area.png]]
-As you see the train which enters the station blocks the other train for joining the last slot. So I thought about some presignal stuff which transport the information "slot is free" from the slots at the end to the presignal at the beginning. I did this with a second line, similar to [[priorities]].
+As you see, the train entering the station blocks the other train from joining the last slot. So I thought about some presignal stuff which transports the information "slot is free" from the slots at the end to the presignal at the beginning. I did this with a second line, similar to [[priorities]].
 [[Image:Second presignal line.png]]
-Notice how the free-slot information is "traveled" thought the marked tiles around the train which blocks a segment. With this presignals the station can enter the presignals even if there already a train on it.
+Notice how the free-slot information "travels" through the marked tiles around the train which blocks a segment. With these presignals, a new train can enter the presignals even if there already a train entering the platform.
 ==How to improve the layout==
-After the idea the station layout must be improved. As you see only a half of stationslots are used and cannot be used from this side as the signals blocks the entry. But they can be used from the other side.
+Only a half of station's platforms are used and cannot be used from this side as the complex signaling blocks the entry. But they can be used from the other side.
 [[Image:Use the other side.png]]
-But how do they exit the station? This is not a real problem, I often use tunnels as followed.
+For an exit, the trains can go through tunnels under the presignal logic for the opposite entry.
 [[Image:Station layout with tunnels.png]]
-If the trains leave the station they have enought space in the tunnel to wait if the exit isn't free yet. You can see the exit from the upper part goes east, the exit from the lower part goes west. This can be flipped/switched however you need it. You also see the disadvantage of this layout. This station and all tracks and signals with a TL of 5 are 23 tiles width. You need around 18+TL tiles space for the width. But - and thats the advantage - you can extend this layout as long as you need.
+If the trains leave the station, they have enough space in the tunnel to wait if the exit isn't free yet. You can see the exit from the upper part goes east, the exit from the lower part goes west. This can be flipped/switched however you need it. You also see a disadvantage of this layout. This station and all tracks and signals with a TL of 5 are 23 tiles width. You need around 18+TL tiles space for the width. But - and thats the advantage - you can extend this layout as long as you need.
 [[Image:Full station with a lot of slots.png]]
-You see here again you can choose from where the trains comes and where it go. This can be changed as whatever you want.
+You see here again you can choose from where the trains come and where they go. This can be changed as whatever you want.
 [[Image:Station diagramm layout.png]]

← Older revision	Revision as of 13:45, 2 September 2007
(No difference)