There is a picture on RailPictures.net of this diamond in Memphis Tenn.
Looking at the diamond and the surrounding tracks and businesses with Google Maps, it looks like it would make a great switching layout. Or incorporated into a larger layout.
Interesting way to build the wye.
A somewhat similar diamond/wye arangment was used at Grant Tower in Salt Lake City prior to 2007 or so: https://donstrack.smugmug.com/UtahRails/Grant-Tower/i-tR7C93d/A. It has since been rebuilt into a far more simple wye shape.
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It does look like a great feature to incorporate into a switching layout.
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-Kevin
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Looks like one of the wyes in the Atlas Track Planning book, called a scissors wye.
As they say, there’s a prototype for everything.
Have fun,
Richard