OK now lets take this in stages.
Firstly you would like a double main line. Well the minimum radius I would work with is 18" ( and many would make it larger) which for the outer track gives a minimum radius of 21" and a width of 3'6" which is 4' by the time you have a bit of board on the outside of the track. Not really a starter I guess.
Secondly you would consider a shunting type layout with a yard at each end. Even if the yards actually meet in the middle this gives a maximum yard of 4'.
This is a micro layout. Might I recommend that you spend a couple of hours looking at:
http://carendt.com/
This web site specialised in the very small & tested. You mgiht find some ideas that appeal & will work - I am sure you will also find a lot of ideas that do not appeal at all but there is a vast amount on this site - keep looking.
Chris
Firstly you would like a double main line. Well the minimum radius I would work with is 18" ( and many would make it larger) which for the outer track gives a minimum radius of 21" and a width of 3'6" which is 4' by the time you have a bit of board on the outside of the track. Not really a starter I guess.
Secondly you would consider a shunting type layout with a yard at each end. Even if the yards actually meet in the middle this gives a maximum yard of 4'.
This is a micro layout. Might I recommend that you spend a couple of hours looking at:
http://carendt.com/
This web site specialised in the very small & tested. You mgiht find some ideas that appeal & will work - I am sure you will also find a lot of ideas that do not appeal at all but there is a vast amount on this site - keep looking.
Chris