Track plan lower level

 The following is the initial track plan design for the lower level of the layout.   This includes the three-track staging yard at the bottom of the image, the interchange junction at the top, the end of the line at the bottom above the staging yard and the two lift-outs for the lower level.   The lift out section at the right may be two separate parts since the track from the loop area the terminus is on an opposite slope of the one leading to staging. 

The two main parts of the layout are three feet deep and sixteen feed long and the upper part has about another two feet of additional depth for the loops.   There is a four-foot opening between the two halves.  As previously posted the main has a minimum radius of 30 inches.   When I start laying track, I will attempt to adjust the wye so that it has a larger radius.

The upper section with the middle town, which will be above the staging yard has not been finalized at this time.   I hope to fit all the terminus structures and tracks into an 18-inch-deep area leaving the same depth for the upper-level middle town.  The two lift out sections connecting the upper level will be above the lift out sections connecting the staging yard.  These may be joined to the lift outs for the staging yard.