+ I grew up in an area with these kinds of roads and I don't think + they're technically compacted.
Same here - "dirt roads", as we used to call them, are not compacted except by vehicles driving on them. I learned the term "compacted" in OSM. In my area, NY State and Alaska, the gravel is what's known as pit run, or is dug from gravel quarries, spread out with a road-grader and not normally compacted. Once or twice a year, a road-grader goes out and scrapes the surface to remove ruts and potholes. I often use surface=unpaved now just to avoid controversy and use surface=ground when the surface has not been constructed from fill— people simply drive on a road that's been cut through an area. On Thu, Apr 19, 2018 at 6:22 AM, James Umbanhowar <[email protected]> wrote: > I grew up in an area with these kinds of roads and I don't think > they're technically compacted. The gravel, which is crushed > limerstone, is laid down and due to its chemical properties creates a > smooth surface after several months of traffic. > > I've used surface=gravel; gravel=crushed_limestone in my area. I don't > get the gravel being 4-8 cm, that seems a wikierror. > > James > > On Wed, 2018-04-18 at 17:19 -0500, Toby Murray wrote: > > I recently bought a gravel bicycle to ride on the many gravel roads > > in > > Kansas. Like this one: > > https://www.mapillary.com/app/?pKey=nYO4JI46L0SWzNAQlLT4kA&focus=phot > > o > > > > First question: What would you call this road? Obviously I am calling > > it a "gravel road" but a couple of people have said they would call > > it > > a "dirt road" so I'm curious if there are any other common terms to > > describe this type of road in different regions of the US. > > > > Second question: How would you tag this road? There is a > > surface=gravel tag that is in pretty common usage in Kansas and > > neighboring states. However looking at the wiki page for the surface > > tag[1], this is not wiki-correct. According to that page > > surface=gravel is to be used for large rocks (4-8cm) that are laid > > down loosely like those typically used as ballast on railroad beds. I > > believe The Mapillary picture I linked to would be considered > > surface=compacted according to the wiki because the rocks are much > > smaller and the surface is stabilized with a binding agent. There is > > a > > big difference between the two when it comes to bicycle riding. > > Railroad ballast is bone jarring and flat tire inducing whereas > > gravel > > roads are pretty manageable on the right kind of bike. > > > > But If you call something a "gravel road" and there is a "gravel" > > option in the editor preset for the surface tag, people are going to > > choose the gravel option and not look for "compacted" since that is > > not a common term here. I assume it is a more common term in the UK > > and that is why it is used in OSM. > > > > And lastly there are trails that are surfaced with a similar material > > but crushed to a smaller size like here: > > https://www.mapillary.com/app/?pKey=iQNqP-dfQ-Rm6AD9REMsgQ&focus=phot > > o > > > > I'm trying to decide if that is better as surface=compacted or > > surface=fine_gravel although fine_gravel seems to be a slightly > > different process from what I see on the wiki. > > > > Maybe this should be directed at the tagging list but I thought I > > would get thoughts from the US community since we seem to be the ones > > using the tag incorrectly (according to the wiki) > > > > [1] https://wiki.openstreetmap.org/wiki/Key:surface > > > > Toby > > > > _______________________________________________ > > Talk-us mailing list > > [email protected] > > https://lists.openstreetmap.org/listinfo/talk-us > > _______________________________________________ > Talk-us mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk-us > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
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