Last things first: I'm sorry, but I cannot download either of the 2 courses from the links you quoted!
I get some sort of error message which doesn't really tell much.
It may be a user-error or it may be a PSN-Problem (one of those where you just have to wait long enough until it will be resolved automagically!?
As far as the signs are concerned, I mean those here (there are curves where there are more of them, but you can see what I mean.
There is also a wall that I do not have anywhere on my track.
See the Picture here:
And then again
Monza:
I think we are both doing it wrong!!!
I usually do it like this:
1.) I take a picture from either Google Maps or Google Earth (which one is better), just like this:
This Picture has a "True North", so the real start goes slightly East by NorthEast, but in the Picture North is North.
This item could be of some importance when you race the track close after sunrise or close to sundown, since then the sun would rise and go down in a wrong place!!! (and yes... I agree: I'm a perfectionist!
).
2.) With an Image Editing Software I then draw a line around the course I want to make a map from as accurately as ever posible, just like this:
This is btw the original idea of the layout I wanted, but if tracks cannot cross...
3.) When I have finished drawing the red line, it is an "object" in the picture.
4.) I then copy that "object" into a new blank white picture, change the size so the longest side is no longer than 2048 pixels (just another stupid limitation in the GT6-TPE!) and voila, my track-template is ready to use in GT6 Track Path Editor!
5.) You are done with the picture work and can start building your track.
BTW: this is the same method I used to build a golf course for a Golf-PC Game (my real home golf course) using a software that was called "
Arnold Palmer Course Designer" with which you could design golf courses to your liking.
It is a much more powerful Editor, so maybe PD should sit together with the developers of that Software in order to learn how to program a course-Editor properly!