You could use them to map the main path while the shorter paths could be hidden, rewarding the more experienced players. This is just one alternative for directional markers thats has not really been used yet (that I've seen).
Haven´t downloaded the TA version yet, but I had some very enjoying games with the standart Q3 version of this map (and I didn´t found the layout very confusing).
I haven't played the TA version yet, but I remember thinking that the old Q3CTF version was quite nice but flag-to-flag time was just a bit too long. I imagine that the map will translate well into TA gameplay... gonna give it a try.