>> This info is probably worth recording, >> but legal status should go into a separate tag. >> > Legal status of roads in the US isn't quite as clearcut as it is in the UK, > where the highway=* tag is literally equal to that country's legal > classification, plus private roads with significant public passage and/or > reach. > ... > At an absolute minimum, we really need to establish values lower than > tertiary yet above unclassified, and we definitely do need to make the > freeway/expressway distinction.
I agree that adding expressway=yes tags to more roads is a good idea. It might be useful for rendering and routing in some situations. If we allow highway=trunk to be used for all major highways (not only those that have certain physical charateristics) this give us an additional level to work with: in the UK and Spain, highway=primary links smaller towns and villages since all the major highways are highway=trunk, which leaves highway=secondary for pretty minor roads ("B Class" in the UK) linking villages and hamlets, while highway=tertiary is for quite minor roads to hamlets or small neighborhoods, and "highway=unclassified" is usually for tiny public roads connecting farms or individual, isolated houses out in the countryside In the USA, most US highways can be highway=trunk or highway=primary, most State highways are highway=primary or =secondary, and country or local roads are highway=secondary or highway=tertiary if they are significant. I use highway=unclassified for very small roads. I don't know Alaska well, but I suspect that the one-lane, gravel borough roads should not be highway=unclassified: they would usually be highway=secondary or highway=tertiary, like most county roads in the western USA. If they are the main route to the largest small town within 100 miles, they might be highway=primary. Here in eastern Indonesia, most of my highway=primary roads have large sections of gravel, and most highway=secondary are narrow gravel or dirt roads (though in Java and Bali they will usually be paved). - Joseph Eisenberg _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging