Nationwide Differential Global Positioning System (NDGPS) Status

1. 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

3. 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)

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. Thank You! Questions?