[Tagging] How might we best map emergency helicopter landing zones?

Blake Girardot bgirardot at gmail.com
Wed Nov 23 00:07:52 UTC 2016

On Tue, Nov 22, 2016 at 8:33 AM, Tom Pfeifer <t.pfeifer at computer.org> wrote:
> aeroway=helipad should be used only for built-up infrastructure, not for
> emergency places that have a different use normally.
> An emergency landing place is nothing but a predefined clear space, it could
> be a soccer pitch or a big lawn in a park in normal situations.

This is exactly right to my understanding and tagging. My
understanding and as I have mapped in the past a aeroway=helipad is
for a known built up permanent for the most part landing area. I
mapped a lot of these in Nepal.

> There is already "emergency=landing_site" defined and used 1800 times that
> seems to fit the purpose of Blake exactly?
> https://wiki.openstreetmap.org/wiki/Tag:emergency%3Dlanding_site

This does sound like exactly the right tag for what we are planning on mapping.

> On 22.11.2016 14:02, Andrew Errington wrote:
>> I tag them as aeroway=helipad, and it looks like this:
>> http://www.openstreetmap.org/#map=16/35.2932/127.5317
>> There are a lot of them in the mountains of Korea.  Usually marked out
>> with a pattern of white stones embedded in the ground.
>> Would like to know if there's a better way, or if doing it this way is
>> wrong.  Or right.
>> Thanks,
>> Andrew
>> On Nov 22, 2016 8:41 PM, "Blake Girardot" <bgirardot at gmail.com
>> <mailto:bgirardot at gmail.com>> wrote:
>>     Dear friends,
>>     I have worked with folks doing ground surveys of helicopter landing
>>     zones during emergency response.
>>     These are ground truthed locations, observed by active search and
>>     rescue helicopter pilots collecting the basic minimum critical ground
>>     survey items for an HLZ for their aircraft type.
>>     They collect the data and provide it in the public domain and I would
>>     like to map it.
>>     I think the vast majority of the items collected are already well
>>     supported in OSM, trees, light poles, ground type, area, grade,
>>     landuse.
>>     What would be the best way to map this data? Does it need its own
>>     namespace? Just map  regular OSM tagging and render the data myself
>>     custom?
>>     I think issues of does the data belong in OSM are separate issues, I
>>     am just interested in how to map it and tag it well. I would be
>>     mapping nothing but ground truthed data that we already map every day,
>>     trees and light poles and ground type, landuse. It is publicly
>>     available data (CC0).
>>     Other data could and should be added specific to HLZ's so we will need
>>     to discuss any non traditional tags that I would like to see be used
>>     for the HLZs mapped.
>>     Cheers,
>>     Blake
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