Single Line Token

Capt_Haddock

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Has anyone cracked setting up a branch line as if under a single line token system?

I have experimented with Wulf_9's Tracking Block rule but this does not really work in TRS 2006 and even if it did work works in one direction only.

A single line token system would need to hold the entry signals at both ends of the branch at red while it was occupied and then allow a train to enter from either end once the branch was cleared (token handed to the exit signalman).
See about half way down this page for an explanation.

Thanks,

Chris
 
Has anyone cracked setting up a branch line as if under a single line token system?

I have experimented with Wulf_9's Tracking Block rule but this does not really work in TRS 2006 and even if it did work works in one direction only.

A single line token system would need to hold the entry signals at both ends of the branch at red while it was occupied and then allow a train to enter from either end once the branch was cleared (token handed to the exit signalman).
See about half way down this page for an explanation.

Thanks,

Chris

Chris,

I never had luck with the rule either. I agree we need something like this for single track. Here in the US, single track is more common than double track, and in particular for very long stretches of mainline. Having to setup passing sidings (loops) in order to signal the line makes this less realistic for some areas that are modeled. I tried the invisible lines and signals, but that didn't work the way it should, or at least for me.

John
 
Has anyone cracked setting up a branch line as if under a single line token system?

I have experimented with Wulf_9's Tracking Block rule but this does not really work in TRS 2006 and even if it did work works in one direction only.

A single line token system would need to hold the entry signals at both ends of the branch at red while it was occupied and then allow a train to enter from either end once the branch was cleared (token handed to the exit signalman).
See about half way down this page for an explanation.

Thanks,

Chris
I run a single line system on my scarborough and whitby line and and have found that it works o.k.Its a very simple system I have a signal at each end of platform a and platform b,platform a being at one end of the single line and platform b at the other.If a train is occupieing the section between the two stations both signals remain at danger ,once my train has entered the platform the train waiting in the ajacent platform going in the opposite direction the signal turns to clear and that train occupies the single line thus setting both sets of signals to danger again until train b has reached the other station.admittedly this only works providing you do not have any other signals between points a and b. Hope this may have been some help.
 
John, thanks, it had not occurred to me that there would be a contempary application for token working. I can envisage a system with a Trigger at each end of a single line section. Each Trigger firing an stop signals at both ends of the section once a train passes, a train passing either trigger would reset the signals to green (equivalent to returning a token to either signal box).

I am up to my ears in learning Blender at the moment otherwise I might be tempted to take on the challenge. Perhaps one of the script gurus could have a think about this a indicate whether or not it would be feasible.

AB80135, an interesting idea but my single lines have numerous industrial sidings, each protected with signals so your solution would not work.

Chris
 
Hi Chris

I am fairly certain that this can be achieved using the SCS2006 rule. It would require 4 triggers with one on each entry and exit road at each end of the section. When a train approaches the single line section it would pass the signal and then hit a trigger. The next 2 commands would force the signals at each end of the section to red. When it leaves the section it would hit another trigger which would be followed by 2 commands to return the signals to automatic control. As the signals are all named it wouldn't matter how many signals there were between the two that were controlling the section.

If it can be achieved through SCS2006 then I would think that someone with scripting ability may be able to produce a rule for use with the ordinary AI. I think though that it would still be necessary to have the signals named so that the correct two could be controlled.

Regards

Brian
 
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Brian, this is an interesting idea that I would like to follow up. Sadly, I cannot obtain SCS2006 because my user account at Trainz Pro Routes has expired and their registration process will not let me revive it.

Thanks for the thought anyway.
Chris
 
Hi Chris

I've been having a play with this idea using SCS2006 in TS2010 and have got it working as a token system. The token is a variable which is set at 0 when the single line section is empty but is set to 1 by a train passing a trackmark before entering the section. The signal controlling entry to the section at the oposite end is forced to red to prevent any train entering from that end. Once the train has passed the entry signal that is also forced to red to prevent any train from following it into the section. A train waiting to enter the section checks the value of the variable every few seconds until it is returned to 0 by the first train passing a trackmark after exiting the section.

The only problem that I had was due to using Bloodnoks signals. They wouldn't be forced to display a red due to the scripting. I therefore used one of the original Auran signals at each end of the section as they can be set to red.

If you do decide to go with SCS2006 and need more information please post back and I will explain further.

Regards

Brian
 
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