Corner Crossings?

Yes, it provides a way to work with L shaped table. I doubled the switch combos and added a wye for a double oval multiple route combo. I have never built a layout one of these.

I don't believe that I've ever seen it in photos of a real railroad trackage. They just make wyes with legs of a length larger than the average train at the end of a line.

It is interesting looking.

In "real" railroading, these are used where rapid transit line cross and trains need to change direction.  See CTA's dual-track elevated intersection on Lake street in downtown Chicago as an example.

Chuck

PRR1950 posted:

In "real" railroading, these are used where rapid transit line cross and trains need to change direction.  See CTA's dual-track elevated intersection on Lake street in downtown Chicago as an example.

Chuck

yep, forgot about that one intersection. I even saved a photo of it, somewhere. I didn't see NYC use it or Philly. One example does not make typical.

here's a basic use - it still seems to need another pair of switches/combo to be useful. Four sets of switches like the CTA would look cool - but I don't think the play value would be worth it. You could get close to the multi-line CTA version with Ross slip switches and the corner/switch combo. But, why?

I think that someone has confused a "Wye" with an Interchange or a junction. Interchanges let traffic move from one route to another, often the routes are different railroads. Junctions let trains choose multiple routes. There is no way to turn a train in the schematic as shown.

I do recall a track plan that used this - it was the "magic mountain" effect.

Two sides of the cross have the switches and curves. Remote powered switches with non-derail.

A mountain with four portals is built over the top.

The loop around the mountain has many more switches, a figure 8 with four more switches at a minimum.

The end result is that train will take various routes and one is not sure which portal it will exit from.  The operator sets the routes in a mixed fashion by flipping various combinations of the switches. I thought this would work best with Command control.

It's been a while since I looked at those bookmarks. I couldn't find them quickly. I was tempted to build it as something to take around. Then, I looked at the switch count.

Still, the corner crossing needs a lot of switches.