Hi, founder here. Throw any questions you have my way.
Today, planners use some scary excel sheets to try to figure this out. They are scary enough that most don't.
Definitely on our list of things to tackle.
I saw a screenshot of one of the CapMetro routes in Austin on your homepage. Have you been working with CapMetro recently?
Some friends and I have been working on a web app[0] to make it easier to see where the buses and trains are in real-time, and ideally get more people to ride them. We've been emailing CapMetro a lot to resolve issues with the GTFS data and the new GTFS-RT API and they're pretty responsive.
We'll be at Interactive so hopefully we can chat for a bit.