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Nationwide Differential Global Positioning System (NDGPS) Status. Presentation to : Civil GPS Service Interface Committee (CGSIC) U.S. States and Localities Subcommittee (USSLS) USCG ISC New Orleans July 8, 2008 Timothy A. Klein Senior Policy Advisor/RITA NDGPS Coordinator [email protected]

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nationwide differential global positioning system ndgps status
Nationwide Differential Global Positioning System (NDGPS) Status

Presentation to:

Civil GPS Service Interface Committee (CGSIC)

U.S. States and Localities Subcommittee (USSLS)

USCG ISC New Orleans

July 8, 2008

Timothy A. Klein

Senior Policy Advisor/RITA NDGPS Coordinator

[email protected]

brief program history
Brief Program History
  • Inland NDGPS Augmentation Developed as Extension of Maritime DGPS
    • Provides real-time differential correction; proven sub-meter accuracy; 99%+ availability
    • Provides single coverage on the ground over 92% of CONUS and double coverage over 65% of CONUS
    • Authorized in 1988 (P.L. 105-66); operated by U.S. Coast Guard under multiagency MOA
    • DOT funded from multiple agencies under FRA program management ($53M, FY98-06)
brief program history 2
Brief Program History (2)
  • The NDGPS Assessment
    • FY07: “zeroed out” of FRA budget
    • October 2006: PNT EXCOM action – “DOT complete assessment of the need for inland component of NDGPS”
    • FY07/08: RITA assessment in support of EXCOM action
      • Federal Register Notice
      • Independent Assessment (ARINC)
      • Letter to Agencies
    • Recommendations accepted by ESG; 01/23/08
    • Endorsed by EXCOM; 03/20/08
national space based pnt execcom action
National Space-Based PNT ExecCom Action
  • Action: DOT complete assessment of the need for inland component of NDGPS
    • Final resolution to be determined by:
      • interagency requirements
      • level of support
    • If there were no transportation requirements or other Federal user requirements, DOT intended to develop decommissioning plan for NDGPS
    • DOT cost share with other agencies possible if there is a transportation requirement
assessment affirms requirements
Assessment Affirms Requirements
  • Assessment affirms operational requirements for inland NDGPS
    • Transportation operational requirements:
      • Federal Highway Administration (FHWA)
        • on behalf of state and local DOT stakeholders
        • routine use in Federal-Aid Program
        • survey, construction, quality, asset management
      • Federal Railroad Administration (FRA)
        • safety system requirements (positive train control, track defect location)
      • Association of American Railroads
        • baseline reference for positive train control
      • National Governor’s Association
        • use by state DOTs, resource management
assessment affirms requirements 2
Assessment Affirms Requirements (2)
  • Assessment affirms operational requirements for inland NDGPS
    • Other Federal operational requirements:
      • Department of Agriculture (NCRS, Forest Service)
        • High-accuracy positioning/repeatability
        • Fire services and enforcement
      • Department of Commerce (NOAA – NWS, NGS)
        • Continuously Operating Reference Stations
        • Weather forecasting
      • Department of the Interior (BLM, NPS, USGS)
        • High-accuracy positioning
        • Fire services and enforcement
      • Numerous natural resource stakeholders
assessment affirms requirements 3
Assessment Affirms Requirements (3)
  • Assessment affirms operational requirements for inland NDGPS
    • State/local and private sector operational requirements:
      • Civil GPS Services Interface Committee (CGSIC) U.S. States and Localities Subcommittee
        • State Departments of Transportation, Natural Resources, Environmental Protection, Agriculture, Parks
        • Multiple states and counties also responded
      • Private/Non-Profit Requirements
        • U.S. GPS Industry Council
        • National Precision Farming Association
        • Professional Land Surveyors
assessment affirms requirements 4
Assessment Affirms Requirements (4)
  • Assessment results affirm research needs for inland NDGPS
    • Transportation research requirements:
      • Federal Highway Administration (FHWA)
      • Federal Railroad Administration (FRA)
      • Association of American Railroads
      • Alliance of Automobile Manufacturers
      • Advocates for Highway and Auto Safety
  • Assessment affirms no other existing PNT augmentation meets accuracy requirements for multiple terrestrial applications
recommendations accepted by esg
Recommendations Accepted by ESG
  • Ratify inland NDGPS as a national utility
    • Reaffirm DOT sponsorship
    • Determine funding required to deploy IOC/FOC
  • DOT to lead interagency team to develop new program and business plan
    • Jointly develop a fund-sharing mechanism among Federal Agencies with requirements
    • Inclusion in Department/Agency FY10 budgets required
      • System at risk due to deferred equipment refresh
      • Free of user fees, per U.S Space-Based PNT Policy
slide11

NDGPS Funding, FY 08-09

  • DOT/RITA FY08 Funding = $4.6M
    • RITA agreed to be interim program sponsor
    • Existing system operations and Maintenance

(O&M) only

    • No construction/expansion/upgrade for NDGPS sites in FY 07/08
    • Pass-through to U.S. Coast Guard for O&M
  • DOT/RITA FY09 Funding = $4.6M
    • Pass-through to U.S. Coast Guard for O&M
    • Insufficient to meet O&M requirements
slide12

Projected NDGPS Funding Needs:FY09 + Recapitalization[USCG+DOT Estimates]

  • FY09 Shortfall
    • $4.6M as placeholder; insufficient for O&M
    • Shortfall ~ $0.8M
  • Recapitalization (required in FY09 for any operational scenario)
    • $3.5M
      • Equipment refresh required for ongoing operations (deferred maintenance)
      • Three years behind Maritime DGPS
      • Future estimates based on completing recapitalization (proven reduced O&M costs)
  • Total Additional Need: $4.3M
slide13

Projected NDGPS Funding Needs: FY10 and Outyears[USCG+DOT Estimates]

  • Current System; no build-out
    • $5.9M average annual operations and maintenance (O&M) only
  • Complete Initial Operating Capability (IOC) – 8 sites
    • $3.4M capital costs
    • $6.2M annual (O&M)
  • Complete Full Operating Capability (FOC) – 20 sites
    • $19.0M capital costs
    • $6.5M annual O&M
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