AWay to totally lock a track path.

[Tekky]

...there IS NO WAY to TOTALLY LOCK a path...

Thats why im suggesting it here in the suggestions section.

Circuit network can send red signal = 1 to a light to lock it red.

A red signal does not always prevent a train from selecting a path. It only gives the pathfinder a penalty for selecting a certain path, so that it is less likely to select it.

[eradicator]

A red signal does not always prevent a train from selecting a path. It only gives the pathfinder a penalty for selecting a certain path, so that it is less likely to select it.

The extra penalty is only applied when the signal is forced red by a circuit connection. Standard red signals don't have special penalties, just the penalty for a train being in the way (otherwise the signal wouldn't be red).

[AnthonyForPOTUS]

...there IS NO WAY to TOTALLY LOCK a path...

Thats why im suggesting it here in the suggestions section.

Circuit network can send red signal = 1 to a light to lock it red.

A red signal does not always prevent a train from selecting a path. It only gives the pathfinder a penalty for selecting a certain path, so that it is less likely to select it.

Red signal will completely block that path. A train cannot path through a red signal except under manual control or if it was already pathing through it when it turned red and it cannot stop in time. I am not sure why you think it can path through it. If you mean the pathfinding algorithm, then yes, it will consider that path. There is no way to get the pathfinding algorithm to not consider an otherwise valid path. It can however be encouraged to follow one path over another. I have a FIFO stacker that has an automatic bypass if the stacker is empty. If there are no trains in the stacker, an incoming train shortcuts the entire system. If there is even one train in the stacker, the incoming train must get in line and wait its turn. It is mechanical enforced. The entry signal will not allow a train to take the shortcut even if the stacker is full.

[Hyenna]

Red signal will completely block that path. A train cannot path through a red signal except under manual control or if it was already pathing through it when it turned red and it cannot stop in time. I am not sure why you think it can path through it.

Im not thinking that it will pass through. A red signal only prevents a train to enter the path but it doesnt lock the path for the pathfinder.
So the train will wait for the signal to turn green instead of taking the other path where it could get closer to its destination due to penalties. The problem start when the train waiting penalties go bigger then the signal penalties.