Overuse of rivers and streams

valleyofdawn · 2013-03-31 10:10:33

I've noticed that many waterways in Israel are not accurately tagged.

Seasonal streams, dry unless it's raining, should be marked as waterway=wadi. They would appear as dashed blue lines in the standard OSM slippymap.
Regular streams should be waterway=stream, and only major ones should be marked rivers.

zstadler · 2013-03-31 16:12:55

Thanks for the note on waterway=wadi. That's a very important distinction. However, AFAIK, waterway=wadi is not a common OSM tag. Currently, there is only one wadi in Israel - Nachal Yagur...

One OSM definition of a stream is "A naturally-formed waterway that is too thin to be classed as a river. An active, able-bodied person should be able to jump over it if trees along it aren't too thick." Using this definition will help distinguish rivers from streams. It also means that a wadi can turn into a stream when it reaches a spring, and a stream may turn into a river as it flows down and widens.

eric22 · 2013-03-31 16:31:49

When I was tagging streams, I looked for something like waterway=wadi and did not find any mention of it. In fact, a couple years ago we said in this forum that "stream" was the the correct tag instead (http://forum.openstreetmap.org/viewtopic.php?id=10343). And I still cannot find it on the OSM wiki page.

It is nice to know that "wadi" renders correctly as a dashed blue line. But I really think we should get it to be more accepted before we switch all the streams to wadis.

Last edited by eric22 (2013-03-31 16:32:42)

valleyofdawn · 2013-03-31 20:41:42

This should be done based on personal knowledge of the streams/wadis and not in bulk.
The only way to get it to be more accepted is to start changing them little by little.

Mr_Israel · 2013-04-02 08:07:45

I would also like to raise the question if we have tagged the major rivers / streams of Israel already.
What do you think is the status we have on this elements?

valleyofdawn · 2013-04-03 14:19:59

The major rivers (as far as Israel has any major ones) are there. But there's still a lot to be done. Nahal Taninim for instance is not tagged, Nahal Dishon is missing. Many wadis in the Judean Desert are not named, or named in English only.

valleyofdawn · 2013-04-08 15:21:25

A disadvantage of the standard slippy map rendering of the wadi tag is that it's not named .

Announcement

#1 2013-03-31 10:10:33

Overuse of rivers and streams

#2 2013-03-31 16:12:55

Re: Overuse of rivers and streams

#3 2013-03-31 16:31:49

Re: Overuse of rivers and streams

#4 2013-03-31 20:41:42

Re: Overuse of rivers and streams

#5 2013-04-02 08:07:45

Re: Overuse of rivers and streams

#6 2013-04-03 14:19:59

Re: Overuse of rivers and streams

#7 2013-04-08 15:21:25

Re: Overuse of rivers and streams

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