Automated passing loops

Hi all,    
        I have this idea of putting 3 passing loops inside a mountain but would like it to be automated ie train into track 1, setting of track 2, train in track 2 sets of track 3 train in track  3 then sets of track 1 and so on. Could anyone tell me if this is possible and how to wire it up. I do use Massoth DCC does this matter or not
 
        Thanks in antisipation
    Granddad gnome
 

THE GNOME ON WHEELS

Item-No.: 8170001 This is what you want. Massoth part. you would also need loco magnets, and track contacts.

It shows how to do it on two tracks so all you have to do is expand it.
Your Navi will need programming as well

Landquart Grusch Bahn

I'm the boss in our house. SWMBO gave me permission to say so!

Many thanks. I will read up on it.

THE GNOME ON WHEELS