Quote “My question is.. how many signals and where should I place them to have trains spreaded on entire network? I don’t want that two trains come to a city one after another. Currently I have signals only in front and behind stations … works more or less ok .. but is not optimal, because distance between cities is not equal and some trains waits to much time. … any advice?”
I usually use this setup between 2 cities, 1 line, two trains going back and forward with a sidding pass more or less between two cities. First I send one train and when it gets to the end of the line, I send the other. That means they will meet each other half way between cities, the reason to create the sidding pass there. Don’t forget to put the signals inside the sidding pass on the right side before the junctions. If sometimes one of the trains suffers a delay because it tool longer to empty/fill with passengers, usually the sidding pass will reset the times and one train waits for the other keeping both trains separated and evenly sparsed.