1 Carol Hall Data Resource Center Metro Portland

1 Carol Hall: Data Resource Center, Metro, Portland OR REGIONAL PERSPECTIVE Digital Parcel Map Database Standards The Regional Perspective is framed around the following topics: 1. What is Metro? 2. Metro Regional Parcel Map evolution 3. Local standards vs Regional standard 4. Regional standard vs State standard 5. Data sharing 6. Use of the Parcel Map in the region PANEL: Digital Parcel Map Database Standards for Broad Use

2 CONTEXT Parcel Mapping in the greater Portland, Oregon area • Metro – a regional government with a directly elected Council. • There are over 562, 000 parcels spread across 3 counties and 33 cities. • Washington, Clackamas and Multnomah Counties. • Unlike King County, all the parcel mapping is done by the County Assessors and/or GIS staff. • The regional parcel map is created at Metro from the data provided by the counties. PANEL: Digital Parcel Map Database Standards for Broad Use

3 Parcels for the 3 -county region PANEL: Digital Parcel Map Database Standards for Broad Use

4 CONTEXT The Evolution of Metro’s Regional Parcel Map • Metro had the first GIS in the region. • The 3 -county parcels were digitized using data from the electric utility. • Metro collected digital data periodically from the assessor records. • The assessors continued to maintain hardcopy tax maps according to state standards. • There are state requirements for assessment records, but there are variations in the formats of the digital data. PANEL: Digital Parcel Map Database Standards for Broad Use

5 The State of MAP STANDARDS At the Regional Level • Metro and regional partners set de facto GIS standards for the region. • When the cities and counties developed their own GIS, Metro handed them the GIS data for their jurisdiction. • For the most part, the original standards have been maintained. • The formats of assessor data remain inconsistent. • Metadata. PANEL: Digital Parcel Map Database Standards for Broad Use

6 Primary Unique Identifier Township Range Section Parcel # Record # PANEL: Digital Parcel Map Database Standards for Broad Use

7 The State of MAP STANDARDS At the Regional Level • Standardization of the Parcel Map occurs at Metro. • Why? • Unique format of State ID and Record numbers is preserved. • Parcel data is collected, integrated seamlessly and distributed quarterly. PANEL: Digital Parcel Map Database Standards for Broad Use

8 The State of MAP STANDARDS At the Regional Level • State of Oregon GIS Framework – ORMAP. • Providing regional parcels that conform to the state standard. • Python script. PANEL: Digital Parcel Map Database Standards for Broad Use

9 PANEL: Digital Parcel Map Database Standards for Broad Use

10 Data Sharing At the Regional Level • Data sharing is widely practiced in the Metro region. • Handshakes to Intergovernmental Agreements and Data Licenses. • Incentives. PANEL: Digital Parcel Map Database Standards for Broad Use

11 Users of Regional Parcel Data • The Regional Parcel Data is distributed to ~170 subscribers of the RLIS Data. • Governments, universities, NGOs, developers, title companies, utilities, NAVTEQ, etc. • Web applications. • Standard GIS data sets for the region. PANEL: Digital Parcel Map Database Standards for Broad Use

12 Carol Hall GIS Program Supervisor Data Resource Center Metro – Portland Oregon hallc@metro. dst. or. us www. metro-region. org PANEL: Digital Parcel Map Database Standards for Broad Use