They all connect but independant, 2% or less grade.
With two main lines on 1 st . 2 Main Lines on second level and connected to the yard and option to climb the mountain from 2nd to third level or downn to the 1st.
With the vision and legacy out now I wanted some slight "Roller coaster" runs to get the laboring and let up sounds going.LOL.
The first level is perfectly Level, again for Non oddysee and Conventional if need be.
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