The Tennessee Base Mapping Program

Office for Information Resources

GIS Services

The Tennessee The Tennessee Base Mapping Base Mapping ProgramProgram

The Tennessee The Tennessee Base Mapping Base Mapping ProgramProgram

“A New Beginning”

Dennis Pedersen, DirectorDennis Pedersen, DirectorOIR – GIS ServicesOIR – GIS Services

Dennis Pedersen, DirectorDennis Pedersen, DirectorOIR – GIS ServicesOIR – GIS Services

OIR – GIS Services 2

Retreat 2007, 10/31/07

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

TNBMP…A New Beginning TNBMP…A New Beginning TNBMP…A New Beginning TNBMP…A New Beginning


Retreat 2007, 10/31/07

Let’s take a look back…



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Pilot Counties – 1997, 1998

TN Base Mapping TN Base Mapping ProgramProgramTN Base Mapping TN Base Mapping ProgramProgram


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Retreat 2007, 10/31/07

Milestones/Milestones/AccomplishmentsAccomplishmentsA few quick facts:A few quick facts:

Milestones/Milestones/AccomplishmentsAccomplishmentsA few quick facts:A few quick facts:

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

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


Retreat 2007, 10/31/07


Retreat 2007, 10/31/07

Sustainable Ortho Imagery Sustainable Ortho Imagery PrinciplesPrinciples

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

• Develop set schedule for updates

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

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

• Examine State/local cost share


Retreat 2007, 10/31/07

Data Maintenance StrategiesData 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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• 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• Identify counties with significant growth, imagery that is outdated, TDOT region 1 (upper East TN)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)

Data Maintenance StrategiesData Maintenance Strategies


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Spec Comparison

Chart

Existing TNBMP Ortho Specs

Pilot TNBMP Ortho Maint. Specs

Photography B/W Panchromatic Film Digital Color

Scale1” = 400’ county wide

1” = 100’ selected urban area

1” = 200’

(400’ Mosaic)

Resolution2’ county wide

6” in selected urban area1’ county wide

Geographic Extent

Entire State9 counties - 2007

13 counties – 2008

DTM Mass Points/BreaklinesMass Points/Breaklines w/ supplemental data

Ortho Maintenance Pilot Ortho Maintenance Pilot ProgramProgram2007-20082007-2008


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TNBMP – Digital Terrain ModelTNBMP – Digital Terrain Model


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Dept. of TransportationDept. of Transportation

• Need to 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


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OIR-GIS/TDOT - PartnershipOIR-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

• 2008 Acquisition: Region 4 (West TN)

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


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Standards/Funding

CurrentCurrent

TDOT

IFTN

OIR-GIS

Sustainable Tennessee Ortho-Maintenance Program

Aerial Surveys

T N B M P

FutureFuture

Federal

LocalGov

State


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Sustainable Ortho Imagery Sustainable Ortho Imagery PrinciplesPrinciples

• 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


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

The “Tennessee Map” (TNMap)

Enterprise GIS DevelopmentEnterprise GIS Development


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• 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

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


Retreat 2007, 10/31/07


• 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 GISBusiness Case for Enterprise GIS• Comptroller – Manage real property• TWRA/TDEC/Ag. – Governor’s 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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OIR GIS Services Enterprise GIS Architecture Diagram

`

Dell MD1000SAS Storage

Extension4.5 TB

Dell MD1000SAS Storage

Extension4.5 TB Dell ML6010

Tape Library

Scheduled 2007 Hardware Acquisitions:

2 x 2900 Series Servers2 x SAS Storage Modules

OIR GIS Services Admin Access

GIS MAN / WAN Application

Access

Data CenterFirewall

Internal Connectivity

Admin Connectivity

Backup Connectivity

DC

Incoming Request /Outgoing Results Dell 2950

2x 1.6 Dual Core16 GB RAM

Intranet Web /ArcIMSServer

“Intranet IMS”

`

Dell 29502x 1.6 Dual Core

16 GB RAMSQL Server“GeoDB II”


16 GB RAMSQL Server“GeoDB I”


16 GB RAMInternet Web /

ArcIMSServer

“Internet IMS”


16 GB RAMArcGIS

Image Server“GIS App II”


16 GB RAMArcGIS

Image Server“GIS App I”


Retreat 2007, 10/31/07

• Geo-portal application• Base Map Data Repository• Shared GIS infrastructure for application

hosting• Access: Public, State GIS users

TNMap…More than just a map


TNMap portal demonstration…


Retreat 2007, 10/31/07

• 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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• 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….Thank you….Thank you….Thank you….

• Contact Information:– Dennis Pedersen, Director, GIS

Services312 8th Avenue North16th Floor, WRS Tennessee TowerNashville, TN 37243-0288

– E-mail: [email protected]– Phone: 615-741-9356

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

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

The Tennessee Base Mapping Program

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