<div dir="ltr">I don't think we should do asphalt classification -- too difficult for many cases, and very little value, especially in this case because it is not the "type" of asphalt, it is rather a "feature" of asphalt. Multiple features could exist in the same asphalt - e.g. it could have noise-canceling qualities, or it could have under-surface charging, or it could have solar panels integrated into it, or it could have high melting point so it works well under sun.<div><br></div><div>In other words, I think it should be a yes flag, something like noise_reducing_surface=yes</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, May 2, 2019 at 5:12 PM Florian Lohoff <<a href="mailto:f@zz.de">f@zz.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Thu, May 02, 2019 at 07:55:40PM +0000, <a href="mailto:amilopowers@u-cloud.ch" target="_blank">amilopowers@u-cloud.ch</a> wrote:<br>
> Hello<br>
> <br>
> I used to live in Fribourg, Switzerland where they put "whispering<br>
> asphalt" on one of the main roads in order to prevent noise. You can<br>
> barely hear an EV now, but that is another story.<br>
> <br>
> Since we have quite a lot of discussions about noise pollution I<br>
> thought it might be a good idea to implement a tag for that.<br>
> <br>
> surface=whispering_asphalt or surface=silent_asphalt came to my mind<br>
> but I don't know what the official term for that aspahlt in English<br>
> is. In German we call it "Flüsterbelag" or "Flüsterasphalt".<br>
> <br>
> Then I found on Overpass-Turbo someone that tagged<br>
> "asphalt:type=porous". [1] Since I don't work in that area I don't<br>
> know for sure if this is the same thing as I imagine and I found only<br>
> one Wikipedia article in German [2] about that asphalt I mean.<br>
> <br>
> I personally prefer one of my first ideas, since I hate to add another<br>
> key/value if I can say it in one.<br>
> <br>
> I look forward to hear your thoughts and comments.<br>
<br>
The point is that when you invent a new value for surface a lot of<br>
consumers will assume it to be some kind of bad/worse surface and<br>
reduce the average speed to expect.<br>
<br>
I'd rather propose surface=asphalt asphalt=whisper or the like.<br>
<br>
asphalt:type would also be okay with me. There are more likely 100s of types<br>
of asphalt.<br>
<br>
Flo<br>
-- <br>
Florian Lohoff <a href="mailto:f@zz.de" target="_blank">f@zz.de</a><br>
UTF-8 Test: The 🐈 ran after a 🐁, but the 🐁 ran away<br>
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</blockquote></div>