This example seems like a private installation.

With short private entrance segments, the intereior campus roads could be of type street, to distinguish them from parking lot roads.

Public alleys with their own parking lots sounds like a special case, an exception to the general rule. We're building with the blocks we find in the box.

We are only using these types (private road, parking lot road) because we don't have a road type of
"smaller than ordinary street; may be one way or two way but barely has room for one car to get through, let alone for two cars to pass each other and if you try to use this as a shortcut, you might get stuck behind a delivery truck for 20 minutes and be unable to reverse out because of the drivers behind you who tried the same trick. Really not meant as a through road"