Waze selects routes based on the road type, selecting freeways over major highways, major highways over minor highways, and so on, unless you have 'avoid highways' enabled. This was the reason why waze always suggests the heavy traffic ridden 'Kalayaan Avenue' in Makati over '32nd St.' because 'Kalayaan Avenue' was tagged as a minor highway and '32nd St.' was only a street. I've made both of them as primary streets to have them have the same speed penalty and routing would then be based on traffic reports on both roads.
Another basis for waze routing is the number of junctions on the street. Each junction adds a 5 second penalty on the route computation so waze will prefer a street with lesser junctions.
The problem with waze road types is the limited types, there should be secondary and tertiary roads. I agree that the freeways be limited to the 'expressways' but the major highways I think should be limited to the likes of 'MacArthur', 'Maharlika', 'National', 'Cagayan Valley Road', etc. which traverses across multiple provinces. Minor highways then become roads which are the main provincial roads, primary roads would be the main city or municipal roads.
Maybe we can create a list here so we can be in agreement on the road types for our streets like
And then maybe have a separate list for different provinces.
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