A Trigger/Trackmark challenge

[narrowgauge]

I have a situation where a cut of cars of various types and lengths emitted by a portal, needs to be pushed to a specific point, stopping when the trailing loco is over the set point. In each case the locomotive is the same.

Despite everything I have tried, the train stops with the leading traincar at the set point causing quite a wide variation of the locomotive position which creates a problem with subsequent actions.

Enlightenment would be appreciated.

Peter

 

[Bill69]

Hi Peter,

From that I gather the emitted trainz can be of different lengths? If there is quite big difference in length there is no way to stop the loco at one point. Go into map view while the train is being pushed in to the siding and you will see the driver is actually in the last wagon, which is the lead wagon for the direction of travel.
The only way to get the loco to one specific point is to tell the driver to drive to a trackmark which takes him beyond the point you want him to stop at, then drive forward to the correct point.

Cheers,
Bill.

 

[narrowgauge]

Bill

Thanks!

This is what I have tried. Works a treat. Start - via A - via B - to A

I set the commands like this:- Start > drive via trackmark A > drive via trackmark B - halt - reverse heading > drive to trackmark A - apply handbrake - Uncouple at loco - drive away. Provided A and B are far enough apart it will handle most lengths of car in a three car cut. I don't anticipate it using on stock longer than 50 feet or shorter that 40. The important thing is that the car nearest the loco always ends up in the same spot.

Many thanks for helping.

Peter
I

 

[Kennilworth]

Hi Peter

There is a way of doing exactly what you want, but whether you would want to spend the time learning to use the SCS2013 rule is a different matter. The Autopilot command contained in the rule allows you to select which part of the consist is to be used as the reference point for stopping the train. It can be "Front", "Centre" or "Rear". Trackside objects that can be used in conjunction with this command include Trackmarks, Junctions, Signals and Industries. It has a parameter to allow fine adjustment of the actual stopping point and also allows speed control to 1 mph and has parameters to adjust the acceleration and braking rates. The SCS2013 rule also has the benefit of ignoring the junction and trackmark radii which means that trains can be stopped and reversed just after clearing a junction instead of having to run 20 or 30 yards past it to allow the junction to be changed. All of this allows highly realistic operations to be performed with the AI.

Through stations require just one trackmark placed on the centre of a platform track which, when used with the centre reference point, will stop any length train centrally at the platform.

There doesn't appear to be any normal driver command that comes anywhere near the versatility of this command. However it can only be used from within the SCS2013 rule editor as part of the whole SCS2013 package and the rule does have a steep learning curve.

It probably isn't the quick solution that you require but I thought that I would make you, and anyone else who may be interested, aware of its existance. For anyone who is interested this thread has more information http://forums.auran.com/trainz/show...ike-to-try-SCS2013-for-TS12&highlight=scs2013

Regards

Brian

 

[narrowgauge]

Brian

That is even better. I'm not worried about the time involved. While the other method did almost all that I wanted, it did not have the flexibility to work with any cars regardless of body length. Having people like you and Bill on the forum helping out is one of the things that makes Trainz so special.

Peter