I saw the answer to my question somewhere in a post but have lost the source.

I would like to have my engine terminal operations as close to prototype as possible. I have the water and coal requirements figured out (I think!) but the sand is evading me. I can't get a handle on how much sand would be delivered to the sand bin per day/week. I know it would greatly vary with the number of engines, size of sand domes and service.

Running a Helper On Conventional Control Layout

https://www.youtube.com/watch?v=SkWF_aqp9sM

This blog post will cover a JMRI OperationsPro worked example with emphasis on the features mentioned in this post. It builds on the fine example done by David Haynes and adds some additional more complex features that one is likely to find on a smaller layout (or a local area on a larger layout).

Craig

I've spent a fair amount of time over the last week or so exploring OperationsPro to see if it will do what I want for the Office Park zone. The previous worked example done by David Haynes (pdf here) is a great resource and provides lots of foundational information. However, it only deals with a single industry spur and the cassette doubles as both staging and storage.