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 Editing

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.

Plani Editing

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 Editing

Plani – De Soto

Plani Editing

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 Editing

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

Plani Editing

Plani

Examples of edits:• New Buildings

Plani Editing

Plani

Examples of edits:• Building Expansions

Plani Editing

Plani

Examples of edits:• Building Changes

Plani Editing

Plani

Examples of edits:• Building Deletions

Plani Editing

Plani

Challenges of

editing:• Photo parallax

Plani Editing

Plani

Challenges of

editing:• Photo parallax

98-2000 Ortho

2003 Ortho

Plani Editing

Plani

Complications of editing:

• Tree cover

Plani Editing

Plani

Complications of editing:

• Small buildings

Plani Editing

Plani

Countywide:

• AIMS created or altered: 15,535

• Of these 2,538 are changed records

• Therefore 12,997 new buildings

• Approximately 5,625 deleted

Plani Editing

Time & Cost Analysis

• Estimated Time– 500 X 1.5 hours/tile = 750 hours.

• Actual Time– 7 editors totally approximately 425 hours!

Plani Editing

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

Plani Editing

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.

Plani Editing

Next Steps

• Rollout updated bldg information.– Coordinators– myAIMS– Engineering and map requests

Plani Editing

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?

Plani Editing

Next Steps

• Prepare for faster turnaround off of 2005 photography.– Review building permit point generation.– Photography in SDE.

Plani Editing

Plani

• Questions?