Sustaining the Tennessee Base Mapping Program

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Sustaining the Tennessee Base Mapping Program
2007 TENA Conference

• Dennis Pedersen
• Director, OIR-GIS Services

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Tennessee Base Mapping Program

• Vision Create a statewide GIS base map through
  partnership development that can be used in
  support of a wide range of local, state, and
  federal programs

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Milestones/AccomplishmentsTNBMP Timeline Recap

• Phase 1 (1996-98) Five county pilot program to
  develop specs.

• Phase 2 (1998-2000) Creation of OIR-GIS
  Services, development of business plan,
  sustainable funding

• Phase 3 (2000-07) Statewide GIS data production,
  partnership development

Enduring!
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Base Mapping Impacts
Property Mapping
Census Map Modernization
Flood Map Modernization
Emergency Communications
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TN Base Mapping Program

• State ECB Board Wireless Phase II Mapping
  Minimum 911 Software Data Requirements
  February 1, 2002
• Minimum Layers defined
• Street centerlines with complete address
  attributes
• Point landmarks churches, schools, hospitals,
  cemeteries, government bldgs.
• Area landmarks parks, airports, military bases
• Fire Hydrants and Stations
• Water features
• Administrative boundaries city, county, state
• ESN boundaries
• Digital Ortho photos

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Milestones/AccomplishmentsA few quick facts

• Collaboration/Local partnerships
• 5 million in contracts
• 250 organizations in 54 counties
• Leveraged existing data in 6 counties
• Local GIS maintenance in 42 counties

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Current GIS Efforts/Activities

• Data Maintenance Strategies

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Current ActivitiesOrtho Maintenance

• Initial statewide production complete
• Imagery is 7 years old in some counties
• Population growth/development driving demand for
  new imagery
• Need a plan for ortho imagery update/maintenance

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Ortho Maintenance Pilot Program2007-2008

• Funding in place
• Extend current contract from 10/07 to 10/08 and
  modify specs
• Identify counties with significant growth,
  imagery that is outdated
• Continue operating under current cost share model
  (75 State / 25 local)

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Ortho Maintenance Pilot Program2007-2008
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Dept. of Transportation

• Existing analog aerial photography program
• Large scale engineering projects (site specific)
• Right-of-way corridor studies
• Regional planning efforts

• Identified need to update current photogrammetry
  processes

• Completed Gap analysis to provide detailed
  recommendations

• Need to find funding source and develop or
  enhance internal processes for using new
  technology

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OIR-GIS/TDOT - Partnership

• TDOT Modernizing Equipment
• New digital camera suitable for ortho photo
• Training staff on photogrammetry production
• Responsible for ortho acquisition for ¼ of State
  annually

• OIR-GIS Responsible for data distribution
• TNMap enterprise GIS
• Dissemination to local gov/E911 districts

• 2008 Acquisition Region 4 (West TN)

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Future
Current
Aerial Surveys
Standards/Funding
T N B M P
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Sustainable Ortho Imagery Principles

• Cost effective approach that meets needs of State
  and local users

• Leverage federal funding to help reduce or
  eliminate duplication of effort

• Regional or Statewide acquisition
• County by county more expensive/inefficient
• Eliminate production of overlapping map sheets

• Develop set schedule for updates
• 4 year cycle

• Revisit State/local cost share

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Thank you.