Office for Information Resources GIS Services Sustaining the Tennessee Base Mapping Program Dennis Pedersen Director, OIR-GIS Services 2007 TENA Conference

OIR – GIS Services 2 TNGIC 2007, 4/17/07 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

OIR – GIS Services 3 TNGIC 2007, 4/17/07 Milestones/Accomplishments TNBMP Timeline Recap Phase 2 ( ): Creation of OIR-GIS Services, development of business plan, sustainable funding Phase 3 ( ): Statewide GIS data production, partnership development Phase 1 ( ): Five county pilot program to develop specs. …Enduring!

OIR – GIS Services 4 TNGIC 2007, 4/17/07 Base Mapping Impacts: Property Mapping Census Map Modernization Emergency Communications Flood Map Modernization

OIR – GIS Services 5 TNGIC 2007, 4/17/07 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 TN Base Mapping Program:

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OIR – GIS Services 7 TNGIC 2007, 4/17/07 Milestones/Accomplishments A 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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OIR – GIS Services 9 TNGIC 2007, 4/17/07 Current GIS Efforts/Activities Data Maintenance Strategies

OIR – GIS Services 10 TNGIC 2007, 4/17/07 Current Activities: Ortho 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

OIR – GIS Services 11 TNGIC 2007, 4/17/07 Ortho Maintenance Pilot Program 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Extend current contract from 10/07 to 10/08 and modify specs Identify counties with significant growth, imagery that is outdated Continue operating under current cost share model (75% State / 25% local)

OIR – GIS Services 12 TNGIC 2007, 4/17/07 Spec Comparison Chart Existing TNBMP Ortho Specs Pilot TNBMP Ortho Maint. Specs PhotographyB/W Panchromatic FilmDigital Color Scale 1” = 400’ county wide 1” = 100’ selected urban area 1” = 200’ (400’ Mosaic) Resolution 2’ county wide 6” in selected urban area 1’ county wide Geographic Extent Entire State Nine TN Counties – 07 ??? - 08 DTMMass Points/Breaklines Mass Points/Breaklines w/ supplemental data Ortho Maintenance Pilot Program

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OIR – GIS Services 23 TNGIC 2007, 4/17/07 Dept. of Transportation Need to find funding source and develop or enhance internal processes for using new technology Completed “Gap” analysis to provide detailed recommendations 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

OIR – GIS Services 24 TNGIC 2007, 4/17/07 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 2008 Acquisition: Region 4 (West TN) OIR-GIS Responsible for data distribution –TNMap enterprise GIS –Dissemination to local gov/E911 districts

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OIR – GIS Services 26 TNGIC 2007, 4/17/07 Standards/Funding Current TDOTIFTN OIR-GIS Sustainable Tennessee Ortho-Maintenance Program Aerial Surveys T N B M P Future Federal Local Gov State

OIR – GIS Services 27 TNGIC 2007, 4/17/07 Sustainable Ortho Imagery Principles Regional or Statewide acquisition –County by county more expensive/inefficient –Eliminate production of overlapping map sheets Develop set schedule for updates –4 year cycle Cost effective approach that meets needs of State and local users Leverage federal funding to help reduce or eliminate duplication of effort Revisit State/local cost share

OIR – GIS Services 28 TNGIC 2007, 4/17/07 Thank you….