For rural classification, the FC system seems to work great. However, when it comes to urban classification, what the DOT classifies the road as, and what Waze expects the road to be, in my observation, diverge somewhat. I make the assumption that Waze shows such a strong preference for MH because it is expecting a road that is multi-lane, with a higher (probably 50+ mph) limit, and few controlled intersections.
Perhaps Waze could keep a list of precalculated long-haul segments much as auto clubs used to do.
More time could be spent compiling these once. Then pruning by segment would not have an adverse impact just because it is not MH or FW.
US-40 through Baltimore was mentioned as an urban MH. Just as in rural areas all we have for streets, PS, and even mH are non-paved roads, all some urban areas have for MH and even FW are congested.
The road performs its function
. Waze isn't asking us for speed limits, road surface, lane count, or traffic volume. All that we say is what function the road performs whether parking lot or freeway or something in between.
That said, I to have some reasonable expectation of road condition/construction based on the area.
My expectations are different in deserts, rural areas, and major metropolises.
That why mentioned where US-89 changes between MH and mH
I don't have a problem assigning MH to US numbered routes that are only two lanes with at least 3 miles out of 4 being passing zones. But 23 miles of double yellow lines on asphalt winding over a mountain with just a few slow traffic turnouts or "climbing lanes" cannot be function as MH because such a road simply isn't built to be MH even if the average speed on it is 40 mph and its urban MH segments are considerably slower.
I support requiring some minimum construction standards for road types. I oppose downgrading function based on traffic congestion.
In short for any FC:
- In urban areas I expect wider roads, more lanes, more congestion, lower speed limits, and lower average speeds.
- In rural areas I expect narrower roads, fewer lanes, no traffic lights, higher speed limits, higher average speeds, and possibly non-paved surfaces (on other than FW or MH).