Navigate To Trackmark: loc stops well short of it.

[hkoster1]

Loc stops well short of the trackmark it should navigate to. As a result, it stays too close to a junction it has just passed, so it remains locked (controlled by AI train). Is there a setting that controls the distance from a trackmark? It happens both when the trackmark is at the end of a spur, and when there is still plenty of track following it. Pardon my ignorance (newbie here), but could it be some "invisible" space or something?

Any help will be appreciated.

 

[Pendolino]

Trackmarks have a default 20 m radius, so the loco will stop when its centre is 20 metres before the trackmark (unless the loco enginespec has a very low max-decel value).

To set the trackmark radius you have to:

1) Click on the "Advanced" command (red arrow)

2) Click on the "Get trigger radius" button (blue arrow), then click on "Trackmark 0" (yellow arrow). The current value of the radius will appear in the box highlighted in yellow.

3) You will obtain the same value (20 m, the default value) if you click on "Trackmark 2"

4) Now, click on the "Set trigger radius" button (red arrow), then input the desired radius value in the box (0.1 m in this example) and, finally, click on "Trackmark 0". NOTE: you can input "0.00" as a value, but the trackmark will not appear in your "Navigate to trackmark..." menus.

5) Check again the radius value for "Trackmark 2" (it is still 20 metres)

6) Check the radius value for "Trackmark 0": the value in the box will be 0.1 metres.

I have found this technique useful to send IA-driven steam locomotives on turntables (with radius set to 0.01 metres); I'm sure there are many other uses I have not yet discovered.

 

[cascaderailroad]

You can also just slide the trackmark 20m further down the track.

 

[hkoster1]

Thanks Carlo, wonderful explanation! It will also work when that trackmark is already at the end of a dead-end spur.
I needed this since I'm trying to make the Hawes Junction route/sessions bundled with TS:MAC to actually work. The trackmarks in question are "route" assets, for which any changes create a new route... but I can also add a few trackmarks just for a particular session and do the same trick there.

Grazie!