Weird- but maybe intended behaviour of cargo trains

[emirkir]

Hello,

It's been a while since I played Simutrans. But here I am again. Since it's been so long, I might have forgotten core game mechanics. I cannot wrap my head around the following issue...

I have set up this cargo train line:

WEST STEEL MILL ------ COAL PLANT ------ EAST STEEL MILL

The train bounces between the two steel mills with coal from the middle station. Here's the "issue":
The train has 100% load with coal, then drops it off at the west steel mill (all fun and games). Then it goes back to the coal plant, gets 100% coal and drops it off at the east steel mill. But here, it starts to load coal from the steel mill (to like 50%?) to move back to the other plant. Why? So it starts loading some coal, not all 100%, but a little - to move it to the other steel mill.

Is this intended behaviour or am I doing something wrong. The line is simple, without any signals or other stuff - just rail and stations.

To clear things up: I only want the train to drop off coal at the steel mills - not pick up directly after dropping off.

Thanks for your time in advance!

[prissi]

Usually this happens if the steel mill is delivered by more than one coal mine. The second coal mine will send also some coal for the other stell mill, if it has a contract for that mill.

The only way to avoid taht would be seperate stations for drop off of the coal.

[emirkir]

Ah, okay. Thanks for answering!

I will watch it more closely, otherwise build another station, thank you for your help!