Keep in mind that:
1. This is my first proposal ever, so I'm unfamiliar with its process. There's a section labeled "Examples," and I made these edits specifically for that section
2. As I mention in the proposal, "motorway" is technically not a classification based on importance, like primary and trunk. Instead, "motorway" is a physical characterization.
3. These local classifications are based on a comment I received from Joseph RP about trunk roads and expressways:
"Route 95/11, the 215, and I-15 would be classified as trunk, while Summerlin Parkway, the Airport Connector, and the motorway spur of the [U.S.] 93 Business Loop would all be classified as primary."