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WV Tax Parcel Mapping Best Practices

WV Tax Parcel Mapping Best Practices . May 14 th 2013. Topics to Cover. Introduction Conversion methods and recommended practices Tax Parcel database design Maintaining & editing parcel data in ESRI 10x Data Driven pages and WV hardcopy Tax Map standards Parcel Fabric.

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WV Tax Parcel Mapping Best Practices

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  1. WV Tax Parcel MappingBest Practices May 14th 2013

  2. Topics to Cover • Introduction • Conversion methods and recommended practices • Tax Parcel database design • Maintaining & editing parcel data in ESRI 10x • Data Driven pages and WV hardcopy Tax Map standards • Parcel Fabric

  3. Introductions / Atlas Tax Parcel Background • GIS Tax Parcel & E911 Mapping • WV, NC, SC, GA, MD, VA, MS, IN, PA • From Deed , Plat , & Best Fit • TypicalDelivery in ArcGIS9x or 10x • AutoCadd

  4. Atlas WV Tax Parcel & E911 Experience • Hampshire- Tax Parcels & 911 Addressing • Greenbrier- Tax Parcels • Mineral- Tax Parcels & 911 Addressing • Preston- Tax Parcels • Pendleton- Tax Parcels & 911 Addressing • Wetzel- Tax Parcels & 911 Addressing • Lincoln- Tax Parcels

  5. Conversion Methods • Deeds and Plats • All referenced parcels mapped by legal documents • Most precise conversion method but most costly • Best Fit • Parcels mapped by “heads-up” digitizing method • Least accurate but most cost efficient • Hybrid Method (Most Popular) • Use Plats where available to build base framework • Good accuracy and cost efficient

  6. Conversion Guidelines • Gather source information • Current IAS export • Orthophotos • Digital Tax Maps and Plats • GIS base layers • Centerlines • Hydro • Any other relevant miscellaneous layers

  7. Conversion Guidelines • Geo-reference Tax Maps • Use Orthophotos • Careful of using existing vector data • Avoid Image warping • Locate Plats • Plat references available by Parcel Number? • Use vicinity information on Plats • Create a place holder feature class for Plats

  8. Conversion Guidelines • Create Base Centerlines • Digitize precise centerlines • Use geometric curves • Use Orthophotos • Buffer Right-of-Way widths • WVDOH common widths • Scaled widths from rectified Tax Maps • Block style Right-of-Way Geometry • DOT Right-of-Way plans

  9. Conversion Guidelines • Hydro Features • Update existing Hydro if available • Re-capture all major Hydro features • Miscellaneous • E911 Centerlines • Address Points • Older parcel vector data

  10. Conversion Guidelines • Construct parcels using COGO • +/- 30% of parcels by COGO • Adjust Right-of-Way where needed • Inventory plats accordingly • Best Fit remaining parcels • COGO parcels as Control • Orthophotos • Rectified Tax Maps • Acreage • Right-of-Way Network

  11. Conversion Guidelines • Annotation • Create annotation for all text on Tax Maps • Adhere to WV Specifications • Attribution • Points/Polygons: Parcel ID, Acreage, Feature & Compilation Code, Plat Reference, etc. • Feature Code lines

  12. Conversion Guidelines • Topology • Build Topology rules up front • Maintain Topology day to day • Reconcile with Tax Data • Find records that appear in IAS but not in vector data • Find parcels in vector data that do not appear in IAS • Review these findings • Ultimate goal is 100% match; Achievable?

  13. WV Tax Parcel database design • Points, Lines, & Polygons • Allows users to efficiently meet WV State specifications • Compatible with ArcGIS 9x or 10x environment • Can be loaded into ESRI Local Government Model • Designed around IAS • Works with “Out of the Box” ESRI Core Technology • Simplistic design while meeting all GIS requirements • Efficient for day to day editing, management and topology

  14. Data Demonstration

  15. Points, Lines, & Polygons • Advantages: • Most efficient method for maintaining Tax Parcel datasets • Retain survey information • Maximize use of Arc tools and topology • Maximize Cartographic display abilities

  16. Data Demonstration

  17. Data Driven pages • Supported by ESRI • Dynamic WV State Spec map • Page definitions • Maplex Label Engine included in Arc 10.1

  18. Data Demonstration

  19. Parcel Fabric • AnESRI supported approach focusing specifically on land records management. • Custom ESRI apps geared toward model • Released in 10, recommended version is 10.1 SP1

  20. Parcel Fabric • Atlas Experience • Advantages • Parcel History • Maintaining survey information • Lines and polygons work as one

  21. Data Demonstration

  22. Question and Answer

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