I might need more help with tertiary roads. For instance, why is Upland Blvd a tertiary road (when it's in a residential area) but Evergreen Ave a residential road? (Yes, it's in a residential area, but it connects two or three neighborhoods. Thus, I would consider it a tertiary road east of Jones Blvd.) On the other hand, Upland Blvd doesn't seem to connect neighborhoods together.