Welcome to the forum!
That is a nice layout you have planned.
I'm presuming you are asking how to wire the switches for normal operation. The instructions will be in the box with the switch, but here is a copy of the instructions for you to read beforehand. Page 9 explains how to hook up the controller to the switch. Page 8 explains how to power the switches with a separate power supply.
https://www.lionelsupport.com/media/servicedocuments/71-2045-250.pdfHope this helps, and enjoy building and operating your pike!
Larry