1. City of Philadelphia PACSCL Geo-History Symposium Department of Records GIS and Parcel Mapping: Georeferencing, Edgematching and Annotation December 2005

2. Planning Commission scans parcels IT Timeline and Historical Context Street Centerline is developed Standardization of GIS software Orthophotography and Planimetrics created Street Centerline rectified to Orthophotography Records Department digitizes Registry Maps 19912005 Orthophotography Update Land Records Metabase designed DOR Scrub Editing Edgematching and DPR Pilot Edgematching and DPR Citywide annotation

3. City Environment  Commitment to GIS  Infrastructure  Policies  Standard Software – ESRI product line  Facilitates the Exchange of Data among City Agencies

4. Parcel Layer – Accuracy / Quality  Scanned  Geo-referenced  Orthophotography  Control Points  Edge-matched  Seamless Integration of Map Sheets  Expanded ability to scroll across entire City  Increases usability  Annotated  Engineering Accuracy Preserved

5. Typical DOR Parcel Registry Map

6. More than 4,800 Maps Tile Across Philadelphia 3 Parcel Registry Maps Located in Tile 14

7. Georeferencing 3 Individual Parcel Maps Area of Parcel Map Overlap

8. Georeferencing with Orthophotography 1.Curb lines are extracted from orthophotos 2.Scanned parcel maps are scaled and rotated to line up with curb lines

9. Another Perspective on Georeferencing

10. Pre Edgematching and DPR

11. Post Edgematching and DPR

12. Scanned Parcel Registry Map

13. Existing GIS Parcel Features

14. Parcel Features Viewed with Annotation

15. Highly Accurate Parcel Layer as Citywide Base Map Department of Records GIS Parcel Layer

17. Parcel Maps Leveraged by Applications  Internet Parcel Explorer  Photo Archives  Culture Browser

21. City of Philadelphia Department of Records Acknowledgement M&M Solutions LLC Thank You!