Norman, I answered some of your questions in the other thread you posted on the same subject. It's not a good idea to cross post since you're going to be getting duplicate answers (and effort) in both threads.
Here is your first drawing:
Black Area 38-1/2" X 56"
Brown Area 18" X 26" This is a bookcase shelf next to Black Area.
Orange/Red Area 4" wide.
This your track plan:
For fun more than running schedules or operations.
Want 2 trains; DCC operation.
This plan has reverse direction for trains.
~~~#6. in plan are uncouplers to disconnect a locomotive.
Switch #5 would go to orange/red area and a track on the brown shelf.
A turntable for reversing the locomotive and a storage track on the brown shelf.
Your Questions:
IS THE ABOVE POSSIBLE IN N-SCALE????? IF NOT WHAT DO YOU SUGGEST?
IF POSSIBLE:
--->1. DCC information: What DCC brand(Moderate price) is best? How can you know which locomotives work with a DCC unit? When ordering how do you know that the locomotive decoders are compatible and not the same.
--->2. Is the above layout o.k. for passenger trains or freight only?
--->3. Which locomotives would you recommend?
--->4. I have built N and HO layouts with BLOCK section wiring. How would you wire the above layout for DCC?
--->5. How would you control the switches?
--->6. What size curved track?
--->7. What size switches(#1,2,3,4,5)?
This now gives us a starting point with everything in one place. I don't have the time right now but I'll address your questions later. BTW, post a URL without quote marks and it will automatically be converted to a clickable link, like this:
http://choo-choo-choo-choo.tripod.com/index.html