The linked example is an OSM screenshot? So yes, especially if it is strictly adhering to trunk==expressway, then they will be explicitly marked. This is circular. USGS maps emphasize roads when they are multi-lane highways that aren't freeways, not when they are expressways. Not every multi-lane highway is an expressway, and not every multi-lane highway is a trunk road.
On Sat, Oct 14, 2017 at 1:37 PM, Paul Johnson <ba...@ursamundi.org> wrote: > > > On Sat, Oct 14, 2017 at 3:19 PM, Bradley White <theangrytom...@gmail.com> > wrote: >> >> On Sat, Oct 14, 2017 at 12:53 PM, Nathan Mills <nat...@nwacg.net> wrote: >> > Road maps in the US have long differentiated between freeway/expressway >> > and >> > has had both of those clearly different than US and state highways we'd >> > be >> > tagging as primary. Map users expect to see expressways shown >> > differently. >> >> Could you show me an example of a US road atlas that explicitly >> demarcates expressways? I have legitimately tried to find one but have >> not been able to. Most US maps I've seen show freeways & toll roads >> explicitly, but not expressways. Some maps might use a different >> casing style to denote a divided highway, but the underlying color of >> the line still represents the importance of the road. Which is the >> point I'm trying to get at, that a highway being divided or not is >> orthogonal to its importance. > > > Just googling for it, I do find > https://upload.wikimedia.org/wikipedia/commons/b/b3/Portland_map.png which > has 99E where McLoughlin Boulevard is an expressway, and the Milwaukie > Expressway, in green. USGS's topo maps of Portland also show the Milwaukie > Expressway as an expressway, though also shows Interstate 205 as an > expressway instead of a freeway (which I think we'd all agree would be > incorrect). USGS also shows (albeit very outdated at this point) US 412 as > being an expressway, different from a freeway, east of where the (then still > unbuilt) Creek Turnpike now joins the Rogers Turnpike. _______________________________________________ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us