The INDOT CORS 2007 Indiana GIS Conference March 13, 2007. 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 - PowerPoint PPT Presentation
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The INDOT CORS 2007 Indiana GIS ConferenceMarch 13, 2007By
William A. Schmidt, PE, LSManager of Aerial Engineering,
INDOTThomas A. Mahon, PE, LSSurvey Group Manager, Woolpert Inc
What is a CORS?Continuously Operating Reference StationOperated
by Others Operates continuouslyData available for
Post-ProcessingData may be available in real-time
Advantages of a CORSSingle coordinate systemUniform precisionNo
need to setup base stationsAvoids base station radio issuesFrees up
base stations as roversIncreases productivityEase of use
Existing CORSNGS
Existing CORS (contd)Seiler Instruments
INDOTs Primary Network17 New Stations plus Bloomington
(IUCO)
Typical Installation
Initial Installations
Primary Monumentation
Primary Monumentation (Contd)
Primary Monumentation (Contd)
Secondary Monumentation
Station SponsorsPrimary StationsIndiana Department of
TransportationSecondary StationsOther State
AgenciesMunicipalities/Counties (Possibly)Higher Education
(Possibly)Private Contractors (Not at this time)
Network AdministrationINDOT to Fund Primary NetworkIndiana
Office of Technology (IOT) to Maintain ServersServers dedicated to
INDOT CORS
BudgetsInitial Capital CostsPrimary Network: $400,000Secondary
Network: $800,000
Annual Operating Budget: to be determinedHardware and Software
UpgradesAdditional User LicensesNetwork Administration
ScheduleProcurement Bids March 2007Bids Received April 2007Bid
Awarded April 2007Begin Primary Installations May 2007Complete
Primary Installation, including operational network December
2007Begin Secondary Installation August 2007Complete Secondary
Installation - TBD
CORS AccessPost-ProcessingFree & Available thru www,
location to be determinedReal-Time KinematicControlled by user name
and passwordUp to 250 concurrent users w/o paying for additional
access licensesMay develop a fee-based system of access to support
maintenance and upgrades
CORS Access (Contd)Real-Time DifferentialCoast 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
