[HOT] Request for information about common set of tags for HOT (Was: OSM Nepal Reponse - Links to various infos)

Blake Girardot bgirardot at gmail.com
Wed May 20 13:47:51 UTC 2015

Hi everyone,

I just want to put a small slow down on this process.

HOT is in the midst of discussing its over all tagging strategy and 
needs to do so on the public lists shortly here.

quickly as to the potential helicopter landing sites:


Is _only_ for confirmed helipads. That tag means something and it is not 
for guesses. If something is marked aeroway=helipad it is because there 
is a Circle H there or someone on the ground has confirmed it is a helipad.

Even something like emergency=landing_site is too concrete for the 
potential landing sites we have been mapping.

We have settled for now on:


To emphasize these are just potential sites and literally nothing more. 
It is not easy to properly identify actual, for sure, emergency landing 
sites via aerial imagery. We have been getting feedback from on the 
ground that some of the areas we identified are in fact acceptable and 
we can then change potential to yes.

So I have started the process of going over the wiki pages Stefan 
pointed out and thinking about how the requests for our mapping have 
evolved since then, which is really what drives all our mapping and 
tagging, requests from our field partners.

Speak with you all soon,

On 5/20/2015 2:14 PM, Andreas Goss wrote:
>> there seems to be little information related to the emergency relief
>> effort.  In over 366,000 records there are only 19 marked as aeroway =
>> helipad.
> I already brought this up on the tagging mailinglist. The problem is
> that someone had the great idea to tag those as leisure=common, which is
> honestly one of the worst defined and most abigious OSM Tags in geneal
> (in my opinion this is a UK only tag due to legal implications), just
> check out the Wiki.
> And what makes it really bad is that you can correctly tag places as
> leisure=common where no helicopter can land.
> http://wiki.openstreetmap.org/wiki/Tag:leisure%3Dcommon
> Now aeroway=helipad probablay wasn't used, because it's really meant for
> places designed and designated for a helicopter to land not just where
> it could land. Even though the decription isn't that clear, I think it
> was the correct move not to use it.
> The question is why not have a new tag?
> And then it actually turned out that in Poland they are already using a
> Tag that could have been used by HOT:
> http://wiki.openstreetmap.org/wiki/Tag:emergency%3Dlanding_site
> __________
> openstreetmap.org/user/AndiG88
> wiki.openstreetmap.org/wiki/User:AndiG88‎
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