Sonoma County Airport station

So this is just something very interesting to think about when designing a transit system that interacts with freight as well.

Right next to Sonoma County Airport Station is actually the Operations and Maintenance Facility.

It is a very large, single-ended yard with only one runaround connecting it to the main, which is very unique as far as DMU systems go that I've seen.

And I would actually say that it is honestly quite good for railfanning.

And then in the evening, there is one single round trip, the red train, and then there are two trains labeled in light and dark purple, which make two round trips each.

So overall, this ranges from an incredible two stations per train to a pretty piss-poor 4.7 stations per train, depending on which time of day you're looking to travel.

The crew changes most often likely occur at the operations and maintenance facility itself when they're taking trains on and off the main, but for the three trains that remain on the main over the course of the day, I imagine they just simply walk from the OMF to the Sonoma County Airport station and do a crew change there.

As far as industry goes, I would say that Smart has light freight integration, which would make it a branch line style DMU.