I am starting to lay track in the next section of my layout. I drew a sketch of what I thought I wanted, but as I started to put track into a rough configuration, I came up with an alternate design.
Engine service is at the far end of the yard (not shown). With no turntable, the wye will be used to turn engines from time to time. These movements will always impact the main, as the "west" leg is the main (no choice there).
Plan A was the original simple design where the yard ladder just dumps onto the main. This allows each yard track to be about 3' longer.
Plan B includes an extra pair of switches creating a bypass and an effective yard lead using the "east" leg of the wye. Drawbacks are shorter yard tracks and slight S curve when entering the main (it's really more of a wiggle).
One more thing to consider, this yard is not really for switching. It is the departure area for a hump yard, but may involve putting made up blocks together into a finished train.
I'm leaning toward plan B, but would appreciate any input. BTW, I have all the switches, but almost wish I had a double slip which would ultimately be the best of both worlds.
Thanks!