AI and Signals Not Recognizing Cars/Wagons?

[Accurate]

Apparently AI and signals do not recognize cars. A green signal is presented with cars beyond the signal. The Link-0 is properly placed (beyond the switch ribbon) and facing toward the car. Similarly, AI will drive through a car.

I am probably not the first person to see this. I have no idea how you could get an AI train to transit through a yard with occupied tracks. The AI routing code selects a track that has a car on it and this the AI just plows into the3 car. I tried using a waypoint as a via. However. the AI goes to the end of the destination area (that is the wqaypoint marker in this case), reverses out and selectes a track with a care on it and then a collision.

[BlueLight]

Welcome to the wonderful world of Railworks. You know which track the AI uses, remove the cars from that track and place them elsewhere.

[Chacal]

Have you tried this with a different route?

[OldProf]

Welcome to the wonderful world of Railworks. You know which track the AI uses, remove the cars from that track and place them elsewhere.

An alternate method is to use instructions to set the AI train's path through the yard yourself.

[Accurate]

I have come to the conclusion that for a pure AI scenario you have to navigate the yards with specific instructions. Whereas mainline just may be done by leaving the task to the AI code. Same with signals. Placing signals in the yard and then asking the program to plot a course usually fails. However, signaling "blocks" will allow the program to make more rational decisions on the mainlines. Great care is needed when placing signals requiring links be within ribbons, not switch ribbons and facing the intended direction. Can't take more than an hour or so before frustration drives me elsewhere or SBHH fails tell me it is time to watch TV.

[barnez]

For the AI to properly navigate a yard it must be fully signaled. Most yards are "dark" with only an exit link identifying whether the junction is open or closed.

Exit links do not pass messages to the occupancy table so the dispatcher has no idea which sidings are open.

A fully signaled yard should function properly, but the dispatcher may still get confused without some pathing help

-barnez

[RvA944]

There is a Tut in here that explains setting up yard signals really well.

http://railworksamerica.com/index.php/l ... als-part-2

[Accurate]

I have to agree that you must fully signal the train yard. It is necessary to make each track in the yard a separate signal block. I used the 1head-0track signal at each end of the yard.

Of course, you will need to add signals to create blocks elsewhere so the program can properly differentiate between assets on dead end sidings. As an example if you have two siding, and an engine on each, the program sees that as one block with two engines and displays an error. If you put a signal at the end of each siding before they join into one track the program can now see the engines a separate items. Why this is necessary probably went with the KUJU designers.