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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

NDGPS@dot.gov

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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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)

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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U.S. Department of Transportation

Research andInnovative TechnologyAdministration

National Space-Based PNT ExecCom Action

• Action: DOT complete assessment of the need for inland component of NDGPSFinal 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

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Assessment Affirms Requirements

• Assessment affirms operational requirements for inland NDGPSTransportation 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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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Assessment Affirms Requirements (2)

• Assessment affirms operational requirements for inland NDGPSOther 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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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Assessment Affirms Requirements (3)

• Assessment affirms operational requirements for inland NDGPSState/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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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Assessment Affirms Requirements (4)

• Assessment results affirm research needs for inland NDGPSTransportation research requirements:

Federal Highway Administration (FHWA)

Federal Railroad Administration (FRA)

Association of American Railroads

Alliance of Automobile Manufacturers

Advocates for Highway and Auto Safety

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

• Assessment affirms no other existing PNT augmentation meets accuracy requirements for multiple terrestrial applications

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Recommendations Accepted by ESG

• Ratify inland NDGPS as a national utilityReaffirm DOT sponsorshipDetermine funding required to deploy IOC/FOC

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

• 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

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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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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Projected NDGPS Funding Needs:FY09 + Recapitalization

[USCG+DOT Estimates]• FY09 Shortfall

$4.6M as placeholder; insufficient for O&MShortfall ~ $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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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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

U.S. Department of Transportation

Research andInnovative TechnologyAdministration

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U.S. Department of Transportation

Research andInnovative TechnologyAdministration

Thank You! Questions?