by PhantomSoul » Mon Mar 17, 2014 3:22 am
Thanks for the efforts, sketch. I have to say the FC idea is growing on me, at least in the less urban parts of New Jersey. But in the more urban parts of especially northern New Jersey, the FC maps do not really coincide with the objectives Waze claims for the road types to meet.
From what I understand, the higher road types in Waze are meant to narrow the network of possible routes to consider for really long trips - I would imagine we're talking 50+ miles in the scope of MH and Fwy, if I'm not mistaken. Many of the urban routes that New Jersey calls principal arterials are not meant to be principal arterials across the entire state or even across the multiple counties, like Waze is looking for with the higher road types, but rather just the principal arterial through that specific urban area. Many of these roads are simply surface city streets with traffic lights, no concretely defined turn lanes/signals, parked cars, and even very frequent residential/commercial driveways, and are simply not appropriate for even being considered for routing in the middle of a 50+ mile trip. Fact of the matter is that in such highly-urbanized areas, controlled-access freeways are really the only roads appropriate for through travel. If there's an accident, you can try another freeway - there's usually many of them in very urbanized areas. If you're past the point of detour to another freeway, unless the freeway is actually closed, the ugly reality of these heavily urbanized areas is that your fastest option is probably to just wait out the congestion on the that freeway.
Ironically, Bing seems to have the best metaphor for road types that I've seen so far. I'm not saying that we should rush and adopt their standard; I don't even know exactly what it is or whether it would suit Waze's objectives, but if you look at New York City on Bing Maps, there isn't a single major non-freeway highway anywhere inside the outermost I-287 loop, except for a few short connector sections of roads where a controlled access freeway was never built. Even multi-lane divided roads in this area are mere minor highways, because they've been replaced with nearby controlled-access freeways far more appropriate for longer-distance travel.
I'm not trying to single out New Jersey, but it's where I've done and continue to do the vast majority of my editing. Though I know our roads are rather quirky, I'm pretty sure there are other states, at least here on the east coast, that have similar issues with a strict FC interpretation.
Maybe I have the objective of the road types totally wrong, but if they are for trying to single out roads appropriate for use in the middle of trips of certain distances, then urban arterials are a bad metaphor for Waze highways.