User:Sparks/Anne Arundel County MD Parks and Schools Import

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  • To show all parks within the county.


  • 2013-12-12 - Originally discussed on Imports, Talk-US, and MappingDC lists.
  • 2014-05-29 - Incorporated feedback into the data file and made available via GitHub
  • 2014-06-03 - Provided feedback on datafile and advised I'd start the import on 2014-06-06
  • 2014-06-06 - Start import

Import Data


Provide links to your sources.

Data source site:
Data license:
Type of license (if applicable): Public Domain
Link to permission (if required): Not needed
OSM attribution (if required): Not needed
ODbL Compliance verified: yes

OSM Data Files

Import Type

This is a one-time import and will be done using manual efforts including using JOSM to validate the input.

Data Preparation

Data Reduction & Simplification

I suspect some of the park and fire station data already exists and will either need to be removed if less accurate or the import will need to be trimmed. There aren't a lot of building traces in the county but a quick check to verify the new data will replace is will be made.

Tagging Plans

Use JOSM to tag appropriately each data type. This includes full addressing wherever possible.

Changeset Tags

Describe how you'll use changeset tags in the import.

Data Transformation

Using the OpenData plugin for JOSM, I can open the ESRI Shapefiles that AA County provides.

Data Transformation Results

Data Merge Workflow

Team Approach

Unless someone else steps up to assist with this project, I'll be going solo. The parks data is small enough that I can verify that errors won't happen.


List all factors that will be evaluated in the import.


Using the .osm file I created I'll copy each polygram into the OSM data layer, verify that any other landuse or other areas match appropriately, and combine any POIs that currently mark the locations with the new data. Better data will be left alone.


See workflow above.


See workflow above.