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The INDOT CORS Indiana GIS Conference February 19, 2008

The INDOT CORS Indiana GIS Conference February 19, 2008. By William A. Schmidt, PE, LS Manager of Aerial Engineering, INDOT Thomas A. Mahon, PE, LS Survey Group Manager, Woolpert Inc. Continuously Operating Reference Station Operated by Others Operates continuously

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The INDOT CORS Indiana GIS Conference February 19, 2008

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  1. The INDOT CORSIndiana GIS ConferenceFebruary 19, 2008 By William A. Schmidt, PE, LS Manager of Aerial Engineering, INDOT Thomas A. Mahon, PE, LS Survey Group Manager, Woolpert Inc

  2. Continuously Operating Reference Station Operated by Others Operates continuously Data available for Post-Processing Data may be available in real-time What is a CORS?

  3. Single coordinate system Uniform precision No need to setup base stations Avoids base station radio issues Frees up base stations as rovers Increases productivity Ease of use Advantages of a CORS

  4. Existing CORSNGS

  5. Existing CORS (cont’d)Seiler Instruments (01/15/08)

  6. INDOT’s Primary Network17 New Stations

  7. Add state map showing INDOT facilities Add picture of a maintenance yard Typical Installation

  8. Primary Monumentation

  9. Primary Monumentation (Cont’d)

  10. Primary Monumentation (Cont’d)

  11. Primary Monumentation (cont’d)

  12. Secondary Monumentation

  13. Primary Station Locations Indiana Department of Transportation Facilities Other State Facilities Secondary Station Locations Other State Facilities Higher Education (Possibly) Private Consultants (Unlikely) Station Locations

  14. INDOT Funded Primary Network and it is under construction Indiana Office of Technology (IOT) to Maintain Servers Servers dedicated to INDOT CORS Network Operations and Maintenance by INDOT Aerial Engineering (John Kurtz, LS) Network Administration

  15. Initial Capital Costs Primary Network:  $400,000 Secondary Network:  $700,000 Annual Operating Budget: to be determined Hardware and Software Upgrades Additional User Licenses (no charge) Network Administration (IOT fees) Budgets

  16. Procurement Bids – March 2007 Bids Received – April 2007 Bid Awarded – April 2007 Begin Primary Installations – November 2007 Complete Primary Installation, including operational network – Anticipated Summer of 2008 Begin Secondary Installation – Anticipated Spring 2008 Complete Secondary Installation – Projected by the end of 2008 Schedule

  17. Post-Processing Free & Available from a web location to be determined Real-Time Kinematic Controlled by user name and password Up to 300 concurrent users w/o paying for additional access licenses May develop a fee-based system of access to support maintenance, upgrades, and IOT fees CORS Access

  18. Real-Time Differential Coast Guard Beacons (10 m h 68%) WAAS FAA (7 m h&v 95%) Third Party Vendors Omnistar (submeter 95%) INDOT CORS (subdecimeter 95%) Potential fee schedule similar to RTK CORS Access (Cont’d)

  19. Real Time RTK – Vertical Hundredths vs. Tenths CORS Challenge

  20. Solution to the Vertical Height Modernization Better Geoid Model Development Densification of Benchmarks throughout Indiana Elevations on existing HARN Monuments Elevations on CORS Stations More Gravity Readings CORS Challenge (Cont’d)

  21. Questions? INDOT CORS

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