The Tennessee Base Mapping Program

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The Tennessee Base Mapping Program

• A New Beginning

Dennis Pedersen, DirectorOIR GIS Services
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TNBMPA New Beginning

• Initial Production Complete
• Accomplishments Summary
• Ortho Imagery Pilot Program
• TDOT Partnership
• Enterprise GIS TNMap
• (The Tennessee Map)

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TNBMPA New Beginning
Lets take a look back
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TN Base Mapping Program
Pilot Counties 1997, 1998
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Milestones/AccomplishmentsA few quick facts

• Total cost 28 million
• 19 million (ortho, DTM, planimetrics)
• 9 million (parcels)

• Collaboration/Local partnerships
• 5 million in contracts
• 250 organizations in 57 counties
• Leveraged existing data in 6 counties
• Local GIS maintenance in 45 counties

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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

• Examine State/local cost share

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Data Maintenance Strategies

• Initial statewide production complete
• Ortho 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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Data Maintenance Strategies

• FY07 - 08 Funding in place
• Extended current contract from 10/07 to 10/08 and
  modified specs to emulate Imagery for the
  Nation and local requirements
• Identify counties with significant growth,
  imagery that is outdated, TDOT region 1 (upper
  East TN)
• Continue operating under current cost share model
  (75 State / 25 local)

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Ortho Maintenance Pilot Program2007-2008
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TNBMP Digital Terrain Model
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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 develop or enhance internal processes for
  using new technology

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OIR-GIS/TDOT - Partnership

• TDOT Modernizing Equipment
• Digital camera suitable for ortho photo
  production
• Training staff on new photogrammetry production
  req.
• ortho acquisition for ¼ of State annually

• OIR-GIS responsible for data hosting and
  distribution
• TNMap enterprise GIS
• Dissemination to local government

• 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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Enterprise GIS Development

• How can State agencies create and maintain
  spatial data once and use (share) it many times?

The Tennessee Map (TNMap)
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The Tennessee Map (TNMap) Enterprise GIS
Architecture

• Goals
• Develop enterprise GIS infrastructure to provide
  secure, usable, and easy access to TNBMP data
• Provide State agencies with ability to publish
  data to enterprise GIS
• Support vision of USGS National Map and NSDI
• Identify data stewards, reduce or eliminate
  redundant GIS data collection

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The Tennessee Map (TNMap) Enterprise GIS
Architecture

• Initiatives/Strategies
• Staffing requirements (2 to 8)
• Enterprise Geospatial Data Repository
• GIS Data Inventory and Data Stewardship
• TN Geospatial Data Sharing Standards
• Enterprise Services and Geospatial Applications
• Geospatial Standards (software, metadata)

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Business Case for Enterprise GIS
The Tennessee Map (TNMap) Enterprise GIS
Architecture

• Comptroller Manage real property
• TWRA/TDEC/Ag. Governors Heritage Conservation
  Trust Fund
• TDOT Right-of-way acquisition
• ECD community planning, land use regulations,
  business development

ROI Create once use many times, eliminates
duplication of effort, saves time and money
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The Tennessee Map (TNMap) Enterprise GIS
Architecture
TNMapMore than just a map

• Geo-portal application
• Base Map Data Repository
• Shared GIS infrastructure for application hosting
• Access Public, State GIS users

TNMap portal demonstration
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TNBMPA New Beginning

• State will provide local government with updated
  ortho imagery 4 year cycle
• Local gov. will provide the State with updated
  parcels, street centerline GIS data
• Counties with new imagery (2007 or 2008)
• Local cost share is 25 of parcels only

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TNBMPA New Beginning

• Vision Maintain 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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Thank you.

• Contact Information
• Dennis Pedersen, Director, GIS Services312 8th
  Avenue North16th Floor, WRS Tennessee
  TowerNashville, TN 37243-0288
• E-mail dennis.pedersen_at_state.tn.us
• Phone [phone]

http//tnmap.state.tn.us/portal