I would tag the amount of traffic (official count or estimation) + the width of the lanes (bidirectional with no hard shoulder ?) + an appropriated renderer to show heavy traffic + narrow road with a thin red stroke.
Le ven. 23 févr. 2018 à 21:28, Mark Wagner <mark+...@carnildo.com> a écrit : > On Thu, 15 Feb 2018 16:14:42 -0200 > Fernando Trebien <fernando.treb...@gmail.com> wrote: > > > Landing on this discussion several months late. I've just heard of it > > by reading a wiki talk page . > > > > Since 13 February 2009, the wiki  criticises highway classification > > as problematic/unverifiable. This has also been subject to a lot of > > controversy (and edit wars) in my local community (Brazil), especially > > regarding the effect of (lack of) pavement. > > > > In trying to achieve greater consensus some years ago, I decided to > > seek opinions elsewhere and finally I arrived at this scheme  which > > I think is very useful, if not perfect yet. It can be easily > > summarised like this: > > - trunk: best routes between large/important cities > > - primary: best routes between cities and above > > - secondary: best routes between towns/suburbs and above > > - tertiary: best routes between villages/neighbourhoods and above > > - unclassified: best routes between other place=* and above > > "Best" and "large/important" are both rather subjective. Further, this > proposed system gives rather questionable results at times. > > For example, the fastest route between the cities of Fargo (largest city > in North Dakota, population 120,000) and Rapid City (second-largest > city in South Dakota, population 68,000) follows I-29 and I-90, while > the shortest follows I-94 for a ways, then cuts cross-country on a mix > of minor state highways to save 70 miles while taking about five minutes > longer (on a total trip time of 470 minutes). > > Which one is the "best"? If it's the fast route, there's no issue: > both roads are already "highway=motorway". > > If it's the short route, how should it be classified? Fargo and Rapid > City are both larger than any city within 200 miles, which would > seem to make them "large/important", but even by western American > standards, they're pretty small in an absolute sense. Trunk, primary, > or secondary? > > -- > Mark > > _______________________________________________ > talk mailing list > firstname.lastname@example.org > https://lists.openstreetmap.org/listinfo/talk >
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