In the second video, I talk a little more about easement design tools and then I demonstrate four different scenarios that you might run into when designing your railroad. I also mention several sources that I used from the web. Here is a list of those sources and links to them.
Bob Fuller I Train Videos https://www.youtube.com/channel/UC9iZzS78ZpATbICDKWD8bAA
John Galt Line HO Railroad https://www.jglrr.com/engineering/software/spiral/index.html Links Directly to his calculator page
Ron’s Trains N Things Video on building easements on your railroad https://www.youtube.com/watch?v=Nu9qlIckU7Q&t=1641s
Model Railroader information on easements https://mrr.trains.com/how-to/track-planning-operation/2017/05/easy-easements-for-model-train-track
Steam Powered Radio - Takes you to the prints for my videos
https://steampoweredradio.com/other%20stuff/anyrail%20video%20prints.html