Well hello there,
first of all I am very much unsure if this is the right place to post my question. Please excuse my mistake if it is not and feel free to move it to the right spot :).
So I tried to build the aforementioned interchange as seen in the first post of this thread: http://sc4devotion.com/forums/index.php?topic=14058.0.
Everything seemed to be working out, except one thing: cars driving on the Avenue could not turn left onto the ramp leading onto the RHW. Is this intended or did I miss something?
I attached an image of the partially finished interchange for you to look at. I hope you can help me out!
http://imageshack.us/photo/my-images/259/20130418184612.png/
I answered your question here:
http://sc4devotion.com/forums/index.php?topic=990.msg457905#msg457905
:)