Over the years, I have published many articles containing analyses of vehicle operations on various routes. The process by which the raw data turn into charts has been sketched in some of these posts, but now this information is available in one place.
Any changes or expanded descriptions of the methodology will be maintained on that page to avoid sprinkling the information through route and date specific posts.
Comments should be left on that page.
Note that the article is intended for a reader with a detailed interest in the process.