hi there guys i have a yellow line showing up in driver, just wondering what this means this is my first track in 2006, where im using sidings etc, i have an idea its my signals some where . as the trains go okay but then before this point of track they all stop , i have used the brittish triple line 2 close lines are for passenger the single is service line for freight oh also does it make a difference to use signals from oz on this type of track ? ie mixing up differrent countrys assets.