[Tagging] How to tag shared waterway highway

Joseph Eisenberg joseph.eisenberg at gmail.com
Sat Dec 8 22:53:27 UTC 2018


> Sometimes they both have names and occasionally the two names differ. I
haven’t a solution for that.

Two separate ways, sharing the same nodes.
On Sun, Dec 9, 2018 at 12:51 AM Tod Fitch <tod at fitchdesign.com> wrote:

>
> > On Dec 8, 2018, at 2:31 AM, Joseph Eisenberg <joseph.eisenberg at gmail.com>
> wrote:
> >
> > I would recommend drawing a separate “way” for the highway. I imagine
> that the route taken by vehicles or people walking is a few meters off of
> the center of the waterway, and perhaps a little straighter. If you are
> coarsest tracing the waterway and road, then the two ways might share most
> of their nodes.
>
> As soon as I got to your “I imagine that” I decided you’ve no experience
> in this and I should discount anything that follows.
>
> In the desert southwest of the United States where I was raised they call
> the usually dry water courses a “wash”. And they are often used for vehicle
> travel when dry which is almost all of the time. In hilly or mountainous
> areas the width of the waterway is often no wider than most vehicles so
> there is no place “a few meters off the center of the waterway”. And my
> experience in walking/hiking along them is you are often in the middle of
> the most recent route of flood waters as the walking is easier there (less
> debris, etc.).
>
>  I don’t like the OSM mapping options but what I’ve settled on is a single
> way tagged as:
>
> ford=yes
> highway=track
> intermittent=yes
> surface=sand
> waterway=stream
>
> Some of the washes have names. Some of the tracks have names. Sometimes
> they both have names and occasionally the two names differ. I haven’t a
> solution for that.
>
> It would be nice if there was a way to tag the intermittent flow as
> ephemeral but that has been “bike shedded” to death here before. I
> know/hope that anyone local will have a pretty good idea about whether or
> not there is likely to be water in the drainage (a summer cloudburst
> locally or in the adjacent higher ground) and be smart enough not to enter
> it for the couple of hours that a water event is likely to last.
>
> Cheers!
>
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