Unless you are running really long diesel locos like with 6 wheel trucks or 2-8-0, 4-8-0 type steam, 15" isn't a problem except for how the overhang looks. I run HO F7's, an F40PH and 2-6-0 steam on mine with some 15" radius curves. I also run my On30 2-6-0 with no problem.

I like the way you "bent that layout down" Jeff. With 7', he could add a 9" and a 3" on top and bottom to give him a longer oval. Then, he could extend those bottom inside tracks.

They are out there doing something to it this morning.

The old one is still there on the ground. The MOW crew is now working on the new one.

I didn't get to see the diamond arrive. It was already there on the ground when I tuned in.

I would have liked to have seen how they transported that diamond on the highway. That's pretty huge. Probably 15' from outer rail to outer rail. Then you have the ends sticking out past that. That looks like at least 5' on each side. 25' wide?
The old diamond is still laying there. I wonder if they will leave it. The crane and excavators are all gone.
https://www.youtube.com/watch?v=DKLbXPwb1ZY

Last week, I spent many hours watching them replace a double diamond in Houston. This video is a fast forward version. I was amazed at how they got the exact placement of the new diamond correct when they set it down.

I don't know if it would work or not. Maybe. It seems like it would as long as you added the jumper wires to both legs.

You can use regular E-Z track in between by running jumper wires between the external wiring on the reversing pieces. I used the jumpers when I wanted a bridge in my reversing set-up.
This is helpful, too, if you wanted to use broader or sharper curves or smaller straight pieces in your set-up.

--------------------

-------------------

-----------------

----------------

Ralph - What do you mean about splitting the set?

You need the reversing unit. not just the track. The reversing unit is what reverses the polarity of the track once it is triggered. You can use any powered loco or trolley and long as it is short enough to bridge the gap in the track on each end. I had a reversing set-up using Thomas The Tank.
You would probably be better off to buy one of Bachmann's reversing trolley sets that has everything you need to get started.

My layout days are over. My oxygen level goes way down just walking from one room through two rooms.

A layout with a submarine would be cool.

What kind of info do you need?