[Imports] Maryland State Park & Nature Area Import

Elliott Plack elliott.plack at gmail.com
Mon Dec 1 17:01:16 UTC 2014


I finally completed the import over the weekend when I had some free time.
The data looks great and adds some color to the map where there wasn't any.
Have a look at a few areas:

Eastern Shore: http://www.openstreetmap.org/#map=11/38.3158/-75.9087
Western Md: http://www.openstreetmap.org/#map=10/39.5348/-78.8956
Patapsco: http://www.openstreetmap.org/#map=14/39.2404/-76.7529


Now, there is some data on County owned parks in the data that I want to
ask the community about. This data shows all county owned land that is set
aside for recreation or preservation. There are many gaps in the state and
federal parks that are covered by county parks, where having that data
would be immensely valuable.

Conversely, the data includes many small "Local Open Space" or "Drainage
and Utility" properties. These tracts are set aside during the land
subdivision process to preserve a certain % of the land for non-development
uses. There is value in having this data on OSM, such as for geocachers.
Technically the land is public and open. However, I'd only use the
leisure=park when the land is specifically a park, whereas
leisure=nature_reserve would apply to preserved land that isn't
specifically for recreation. Look at Baltimore.geojson or
Montgomery.geojson in the data below for these small properties.

Here are some geoJSON files that you can visualize on Github on top of an
OSM basemap (by Mapbox):

Thoughts on the small county properties?


On Fri Apr 18 2014 at 3:16:39 PM Elliott Plack <elliott.plack at gmail.com>

> Greetings Import Community,
> *Firstly, pardon the duplicate message. The original was sent in error
> without a subject.*
> After SOTMUS, I have decided to resurrect the import of Maryland Dept. of
> Natural Resources land boundary data. This import will take public domain
> Maryland polygon data that represents the official boundaries of state
> parks and protected areas and will bring them into OSM using a variety of
> tags. I have documented this in the link below, complete with tables,
> diagrams, examples, and a link to the data on GitHub.
> *Brief Summary*: Maryland has made this data public domain. The plan is
> to import this data in *manual mode* only. Local editors will examine the
> data on an individual basis and then upload it when it meets tagging
> standards. The tagging will be fairly comprehensive. We'll either use
> leisure=park or leisure=nature_reserve depending on the data dictionary
> on the wiki. We'll also use the boundary=protected scheme and I have
> written a key for each state land type and corresponding protect_class
>  type.
> *Benefits:* This data in OSM will be fantastic for basemaps, as parks and
> natural protected land boundaries are often hard to discern based solely on
> imagery. Local surveys are impractical given the immense size of some of
> these areas. Coupled with trails surveyed by other local mappers, or using
> the new Strava slide tool, the OSM map can often outperform the official
> state maps in terms of accuracy and informational content.
> http://wiki.openstreetmap.org/wiki/Maryland_State_Parks
> https://github.com/talllguy/maryland-dnr-osm-import/tree/master/dataWGS84/DNR%20Lands%20and%20Conservation%20Easements
> Looking forward to any comments.
> Thanks,
> --
> Elliott Plack
> http://about.me/elliottp
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/imports/attachments/20141201/8b8bb51f/attachment.html>

More information about the Imports mailing list