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Ongoing Plani Editing. Goals: Update some Plani features at an increased frequency. Update more extent of Plani (more than 50 square miles). Use available sources of information to do “smart” updates. Plani. Results: Some Plani will be “dynamic” (i.e. bldg, edge, obld, veg?)

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ongoing plani editing
Ongoing Plani Editing

Goals:

  • Update some Plani features at an increased frequency.
  • Update more extent of Plani (more than 50 square miles).
  • Use available sources of information to do “smart” updates.
plani
Plani

Results:

  • Some Plani will be “dynamic” (i.e. bldg, edge, obld, veg?)
  • New features will be less accurate.
  • New features may still need to be replaced with accurate inventories at a later date depending on needs.
plani1
Plani

2 Pilot Tests:

  • Capture bldg for pilot area in De Soto.
  • Capture bldg for part of a tile that Harden delivered (J13) and compare.
plani de soto1
Plani – De Soto

De Soto Pilot Area:

  • 8 square miles.
  • Estimated 256 building permits from 1998 to 2002.
  • 342 changes. Approximately 311 buildings added, 31 updated, 79 deleted.
plani harden overlap
Plani – Harden overlap

Harden Overlap Test:

  • # of Buildings in J13: 491
  • # of Buildings done by Harden: 81
  • # of Buildings done by AIMS : 84
  • Difference: 3
plani2
Plani

Examples of edits:

  • New Buildings
plani3
Plani

Examples of edits:

  • Building Expansions
plani4
Plani

Examples of edits:

  • Building Changes
plani5
Plani

Examples of edits:

  • Building Deletions
plani6
Plani

Challenges of

editing:

  • Photo parallax
plani7
Plani

2003 Ortho

Challenges of

editing:

  • Photo parallax

98-2000 Ortho

plani8
Plani

Complications of editing:

  • Tree cover
plani9
Plani

Complications of editing:

  • Small buildings
plani10
Plani

Countywide:

  • AIMS created or altered: 15,535
  • Of these 2,538 are changed records
  • Therefore 12,997 new buildings
  • Approximately 5,625 deleted
time cost analysis
Time & Cost Analysis
  • Estimated Time
    • 500 X 1.5 hours/tile = 750 hours.
  • Actual Time
    • 7 editors totally approximately 425 hours!
time cost analysis1
Time & Cost Analysis
  • Estimated Cost
    • Harden estimated $51,604 to update bldg and edge on the “remaining county” (approximately 450 sq miles)
  • Actual Cost
    • 425 hours X an average of $30/hr = $12,750
time cost analysis2
Time & Cost Analysis
  • If bldg and edge are equal in time then Harden’s estimate was $25,802 for bldg alone.
  • We saved approximately $13,052!
  • Opportunity Cost.
  • Distributed data maintenance.
next steps
Next Steps
  • Rollout updated bldg information.
    • Coordinators
    • myAIMS
    • Engineering and map requests
next steps1
Next Steps
  • Consider capturing edge.
    • How do you tell gravel from paved?
    • What scale should you be zoomed to?
    • Where does a road stop and a parking lot start?
    • Is it better to zoom in, move the magnification window or pan the regular window and let it redraw in the magnification window?
next steps2
Next Steps
  • Prepare for faster turnaround off of 2005 photography.
    • Review building permit point generation.
    • Photography in SDE.
plani11
Plani
  • Questions?