Fall 2007

The Newsletter of the Minnesota GIS/LIS Consortium

Table of Contents

MN GIS/LIS Consortium

2007 Conference
Silent Auction
From the Chair
Polaris Awards
Student Scholarship Competition
Our 50th Issue

LMIC Budget Restored
Parcel Inventory Updated
Monument Coordinates in Feet

Governor's Council
New Members
Annual Report
Regional Collaboration Panel

Met Council Map Site
MetroGIS Address Dataset

New Funding for Land Data
GeoMoose Web Mapping
Hennepin Co. Mobile Assessor Tool
Remote Aircraft Photography
Clay Co. Addresses

USGS Maps in GeoPDF
Free Landsat Images
TerraLook Free Imagery
NOAA Satellites
USGS Resources for Teachers

Higher Education
St. Mary's Update

K-12 Education
Geography, History Online

ESRI Map Help

Google Earth Pro Grants

Other Places
Bring Back Geography!
New Parcel Study
MAPPS Loses Lawsuit


MetroGIS Vision for Regional Addresses Points Dataset Closer to Reality
By Matthew McGuire, Project Manager – MetroGIS Web Editing Application (Address Points) Viability Assessment and Mark Kotz, MetroGIS Address Workgroup Staff

MetroGIS’s vision for a Regional Addresses Points (Occupiable Units) Dataset moved closer to reality in July with positive results in the “Web Editing Application for Occupiable Units Dataset Viability Assessment,” conducted for MetroGIS by Brad Henry with URS/BRW. A subgroup of the MetroGIS Address Workgroup coordinated the assessment. The final project report is available here.

Value of the Dataset
The vision for the Address Point dataset recognizes missing address data in existing MetroGIS datasets. The MetroGIS endorsed Regional Parcel Dataset has addresses for each parcel point. In many cases, there is one address point for one parcel. However, in other cases, one parcel can contain numerous address points. The included graphic demonstrates such a situation in a shopping mall. Similar situations arise with apartment complexes, mobile home parks, and office complexes, resulting in a significant number of specific addresses absent from the regional parcel dataset. The vision for a regional address point dataset includes an address point for each occupiable unit in the region. For more on the MetroGIS vision for Address Points for Occupiable Units click here.

Graphic showing a shopping mall with multiple addressable units on one parcel.

The workgroup believes that the vision of a regional dataset cannot be achieved without participation from the local authorities who create address data, and that many smaller cities with limited support capabilities do not currently have the in-house capacity to manage an address points dataset. The subject of the viability assessment was the concept of developing a web-based application through which these smaller address authorities could contribute address point data directly to a regional dataset. Thus, the assessment targeted these addressing authorities.

Assessment Procedure
The workgroup developed a questionnaire and co-conducted, with the consultant, three workshops for staff of address authorities that serve the seven-county, Twin Cities metropolitan area. The workshops were held at the Shoreview City Hall, Burnsville City Hall, and Ridgedale Library. The content of the workshops included an overview of MetroGIS’s vision for a Regional Address Points Dataset, a description of how an online editing application could work, and finally perspectives on the value of a regional address points for occupiable units database from county, city, and emergency response perspectives. The workshops provided additional value by communicating the role of GIS technology and MetroGIS’s efforts in making connections between jurisdictions and disciplines to a new audience.

Assessment Results
Generally speaking, enthusiastic support was found for pursuing a Regional Address Points (of occupiable units) Dataset, with 85 percent of those individuals who completed a questionnaire indicating a strong likelihood of using an application to contribute data to the proposed regional dataset. If an application is developed, the assessment estimates 20-40 percent of address authorities (mostly cities) that serve the seven-county area of the Twin Cities would use an online application to update this dataset. The Address Workgroup expects additional address authorities managing their own address point dataset to contribute to the regional dataset through other channels.

Next Step
The next step toward a Regional Address Point Dataset (for occupiable units) will be a recommendation from the Address Workgroup to the MetroGIS Coordinating Committee on how to move forward. The Address Workgroup will use the assessment as a basis for its recommendation.

For more information, contact Mark Kotz, MetroGIS Address Workgroup staff, at or 651-602-1644.