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ATD Geospatial
  • Table of Contents
  • Geospatial Read-Only
  • ArcGIS Online
    • Activating your ArcGIS Online account
    • Create Vector Tiles with Popups
    • ArcGIS Online Training Page
    • Updating Existing Web Style Published to AGOL
  • ArcGIS Pro
    • ArcGIS Pro Training Page
    • Working in ArcGIS Pro
  • FME
    • Getting Started
    • Working with datetime
    • Adding or Deleting columns in Socrata
  • Active Transportation
    • Bike Facilities Data Dictionary
    • Interim Projects Viewer Model
    • Strava Metro Data
    • Bike Rack Data Collection
    • Updated Bike Rack Data Collection
    • Bike Data Requests
    • Bike Route Steepness Point Generation
    • Level of Comfort Feature Service Update
    • Bike Map Processes
      • Updating Online Bike Route Vector Tiles
      • Updating Steepness Chevrons
      • Print Bike Map
      • Bike Map Data Sources/Paths
  • Arterial Management
    • Data Driven PHB Ranking
      • Data Structure
      • Attribute Schema
      • Data Collection / Processing
      • Analysis
    • School Zone Beacon Audit Map
    • Signal Intersection Aerials Map
  • Comprehensive Transportation Network
    • Active Transportation Edits to the CTN
    • CTN Data Dictionary
    • CTN Monthly Updates
      • 1. CTN Street Segment Update
      • 2. CTN Intersection Points Update
      • 3. Publishing CTN as Vector Tiles to AGOL
  • Parking Enterprise
    • Affordable Parking Program
    • Bike Parking Dashboard/Data Pull
    • Parking Inventory Management
      • Getting Started
      • Editing in MAINT
      • Relationship Classes
      • Attribute Schema
      • Domains
      • Attribute Rules
  • Signs - Markings - Banners
    • Markings GIS Maintenance
      • Getting Started
      • Standard Operating Procedure
        • Marking Types and Sub Types
        • Scenarios doing GIS QA
        • Specifications | In-House > GIS
        • Materials | In-House > GIS
        • Items | Contractor > GIS
      • Attribute Rules
        • Intersection ID
      • Domains
      • Attribute Schema
    • Signs GIS Maintenance
      • Attribute Rules
      • Attribute Schema
      • Domains
      • FGDB Topology
      • New/Removed Signs Workflow
      • Signs QC Process
  • SPEED LIMIT CHANGE PROJECT
    • Desktop App - Speed Limit Change
    • Collector App - Speed Limit Change
  • Miscellaneous
    • ArcGIS Collector App
    • Alan De Anda's G Drive
    • Capital Improvements Program (CIP) Digitization
    • Collector App Set-up - Troubleshooting
    • GIS Onboarding
    • Google Partner Account & Geodata Uploader
    • PNTS Shapefile Creation
    • Public Facing Links
    • Vision Zero Polygon Maintenance
    • TCAD/WCAD Land Values Data Process
    • ArcGIS Style Creation
  • Format Testing
    • AS
    • ZB
    • JC
    • DS
  • Special Events
    • Map Closures Project
    • SXSW GIS Support
      • Data
      • Maps
      • Spring Festival ATX Mobility Guide
      • Incident Tracking
    • AMANDA Street Events Update
    • Active Parking Permits
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  1. Miscellaneous

TCAD/WCAD Land Values Data Process

Jurisidiction Layer

  • Definition query for only COA Full Purpose

  • Select by Location (have their center in)

    • WCAD SVW to jurisdictions

      • Export layer

    • TCAD SVW to jurisdictions

      • Export layer

  • TCAD Calculations on new layer

    • Turn of all fields except:

      • PARCEL_ID

      • PROP_ID

      • LAND_HSTD_VAL

      • LAND_NON_HSTD_VAL

      • IMPRV_HSTD_VAL

      • MPRV_NON_HSTD_VAL

      • APPRAISED_VAL

      • ASSESSED_VAL

      • HS_EXEMPT

      • EX_EXEMPT

      • LAND_ACRES

    • Select records where all VALUE fields are null and delete

    • Select records where the land value fields are 0 and delete

      • LAND_HSTD_VAL = 0 and LAND_NON_HSTD_VAL = 0

    • Select records where both the homestead and non-homestead land values are not zero. These records are being removed as the exemption is being applied to a portion of the land/improvement, making it difficult to determine what percentage would be applied

      • LAND_HSTD_VAL <> 0 and LAND_NON_HSTD_VAL <> 0

    • Add new fields for calculations

      • LAND_VALUE_TOTAL (double)

      • ASSE_TO_APPR_VAL_PERCENT (double, numeric: 4 decimal places)

      • LAND_VALUE_PERCENT (double, numeric: 0 decimal places)

      • LAND_ACRES_ACTUAL (double, numeric: 4 decimal places)

      • LAND_SQ_FT (double, numeric: 4 decimal places)

        • based on LAND_ACRES field, not geometry

    • Calculate LAND_VALUE_TOTAL field

      • LAND_HSTD_VAL + LAND_NON_HSTD_VAL

    • Calculate ASSES_TO_APPR_VAL_PERCENT field

      • ASSESSED_VAL / APPRAISED_VAL

    • Calculate LAND_VALUE_PERCENT field

      • LAND_VALUE_TOTAL * ASSES_TO_APPR_VAL_PERCENT

    • Calculate LAND_ACRES_ACTUAL field

      • LAND_ACRES / 10000 (the LAND_ACRES field is not showing actual land acres with the decimal, Matt Leach at WPD verified, double checked on TCAD website looking at parcel land acres)

    • Calculate LAND_SQ_FT field

      • LAND_ACRES * 43560

    • Table to Excel to create export

      • Must create export as .xlsx as there are 64k+ records

  • WCAD Calculations

  • WCAD Calculations on new layer

    • Turn off all fields except:

      • PARCEL_ID

      • PROP_ID

      • AG_USE_VALUE

      • ASSESSED_VALUE

      • IMP_MKT_VALUE

      • LAND_MKT_VALUE

      • PROPERTY_MARKET_VALUE

    • Select records where Value fields are null and delete

    • Select records where Value fields are 0 and delete

    • Select records where the Ag. Use Value is not zero and delete. There are currently only 14 records in COA FP. These records don’t follow the standard for exemptions, therefore removing them to remove the anomalies.

      • AG_USE_VALUE <> 0

      • Hide this field after deleting records

    • Add new fields for calculations

      • LAND_VALUE_TOTAL (double)

      • ASSE_TO_APPR_VAL_PERCENT (double, numeric: 4 decimal places)

      • LAND_VALUE_PERCENT (double, numeric: 0 decimal places)

      • LAND_SQ_FT (double, numeric: 4 decimal places)

        • based on LAND_ACRES field, not geometry

    • Calculate LAND_VALUE_TOTAL field

      • LAND_MKT_VALUE (adding new field to match TCAD fields)

    • Calculate ASSE_TO_APPR_VAL_PERCENT field

      • ASSESSED_VALUE / PROPERTY_MARKET_VALUE

    • Calculate LAND_VALUE_PERCENT field

      • LAND_VALUE_TOTAL * ASSES_TO_APPR_VAL_PERCENT

    • Calculate LAND_SQ_FT field

      • Calculate geometry to area, square feet, state plane

      • WCAD does not share land acres in data, therefore must use parcel geometry

    • Table to Excel to create export

    • Create export as .xlsx to match the TCAD export

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Last updated 3 years ago

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