M-NCPPC Import 2.0
This import project is the successor of M-NCPPC_Planning_Department and will include multiple data sets from the Planning Department of Prince George's County, including building outlines and address nodes.
Types of Data
- Will be merged with address point files in order to give the buildings proper tags.
- This will be split into many pieces following the WSSC Grids in order to create manageable file sizes.
- These two actions will be done in ArcPro.
Data is obtained from http://gisdata.pgplanning.org/metadata/
Example Dataset for import: WSSC Grid 204NE09
Communicating with the import mailing lists and other OSM community members to address import question
- Prepare files to be imported
- Reduce GIS attributes to only OSM necessary tags
- If necessary, simplify geometry
- Break large files into smaller sections (buildings polygon file) using WSSC Grids
- Join buildings file with address file
- Communicate with talk-us and import mailing lists to discuss the import
- Proceed with rest of files over a period of time
- Importing Building outlines by WSSC Grid
- Used Conflate Plugin from the JOSM Editor in order to fix duplicate points
- Validator in JOSM will be used before each import
- After successful imports a QC process using JOSM validator will be used to QC each WSSC Grid
Example: Building Outline Shape File → OSM Standards
|GIS Attribute Names||OSM Tags|
New Attributes that need to be added:
These field names/tags will be changed or added within the JOSM editor. Any additional fields will not be imported. Height was converted from feet to meters in ArcPro.
Using JOSM's conflate plugin, I can update /clean-up potentially existing data for POI points.
For polygon data such as buildings a comparison has been done using tools in ArcPro between existing OSM data and data from PG Atlas (Data source) to determine if buildings overlap existing buildings in OSM. A separate shapefile has been created of only new buildings. For any overlapping buildings we will manually go through the intersecting buildings in JSOM using the conflate plugin.