1. Creating a Statewide Geocoding Service for West Virginia 2008 West Virginia GIS Conference

2. What is Geocoding? Geocoding is the process used to assign a spatial location to a standard street address. Geocoder /Geocoding Engine / Single Entry / Batch You type in: 708 Sites Ln Moorefield, WV 26836 You get: 708 Sites Lane Moorefield, WV 26836 78` 57’ 15” W 39` 4’ 13” N

3. Sites Lane Spring Ave Lee St How Does it Work? Different geocoding engines use different methods. There are two approaches of geocoding an address; attribute matching and range matching. Many use a combination of both methods. Mailing Address: 708 Sites Ln Moorefield, WV 26836 Mailing Address: 708 Sites Ln Moorefield, WV 26836 Moorefield

4. Sites Lane Spring Ave Lee St How Does it Work? Attribute matching: using part of the address or a combination of parts that match the entry to the database. Ex. Postal Location. Mailing Address: 708 Sites Ln Moorefield, WV 26836 Mailing Address: 708 Sites Ln Moorefield, WV 26836 Moorefield Moorefield,

5. Sites Lane Spring Ave Lee St How Does it Work? Attribute Matching: Data Entry Integrity Check. Is there… > Moorfield in West Virginia? > Yes >Does Zipcode 26836 match Moorfield, WV ? Yes > Is there a Sites Lane within that Zipcode? (range match)> Does the Address Number fall in the Range? 26836 Mailing Address: 708 Sites Ln Moorefield, Mailing Address: 708 Sites Ln Moorefield, WV 26836

6. How Does it Work? Range Matching: Geocoding using acute, attribute rich GIS data. I.E. Mailing Address: 708 Sites Ln Moorefield, WV 26836 You get: 78` 57’ 15” W 39` 4’ 13” N 108 Sites Ln

7. How Does it Work? Attributed Street Data: Mailing Address: 708 Sites Ln Moorefield, WV 26836 NameCityZipPrefixSuffixL FromL ToR FromR ToStreet ID SiteMoorfield26836Lane10111910212023948 SiteMoorfield26836Lane12119912219823948

8. How Does it Work? Direct Matching: Geocoding using attributed point locations. Mailing Address: 708 Sites Ln Moorefield, WV 26836 You get: 78` 57’ 15” W 39` 4’ 13” N 108 Sites Ln

9. What is Geocoding? Who Uses Geocoding? Almost EVERYONE! General Public – Driving Directions, Maps, Site location, GIS Data Input, etc… Other State Geocoding Programs: Ohio, Oregon, Texas, more… Agencies Interested: State Tax, State Historical and Preservation Office, others?

10. Why can’t we use the free one? Private Industry: Good:Autonomously Maintained Reference Dataset Ready-built Generally Current in Urban Areas Bad: Reoccurring Costs Data Integrity / Data Coverage Poor Rural Coverage Licensing Restrictions No coverage for RR addresses

11. Why can’t we use the free one? Even when it’s right, it’s still wrong.

12. Why can’t we use the free one? West Virginia Data: Good:Higher Accuracy Lower Overall Cost Distributed Benefits Long Term Stability Potential Greater Accuracy No Licensing Restrictions (Increase of Use) Bad:Startup Buy In Incomplete Data!!!

13. How Does it Work? Direct Matching: Geocoding using attributed point locations. Mailing Address: 708 Sites Ln Moorefield, WV 26836 You get: 78` 57’ 15” W 39` 4’ 13” N 108 Sites Ln

14. www.batchgeocode.com

18. Questions? Kevin.Kuhn@mail.wvu.edu WV GIS Technical Center 2008 West Virginia GIS Conference