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Civil GPS Service Interface Committee

(CGSIC)

Rudy PersaudU.S. DOT-FHWA

APEC GNSS Implementation Team Seattle, WA June 23, 2010

State and Local Government Subcommittee

CGSIC is the World-Wide Forum Between Civil GPS Users and U.S.

Government Service Providers

Civil GPS Service Interface CommitteeChair, DOT/RITA

Deputy Chair CO, NAVCEN

Board• Aviation• Land• Marine• State• Subcommittee Chairs

GeneralMembership

Intl. Deputy Chair

Subcommittees• International • Timing • U.S. States &Localities• Surveying, Mapping,

and Geo-Sciences

GPS is a Critical Component of the Global Information Infrastructure

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SatelliteOperations

Power Grids

Personal Navigation

Communications

Aviation

Fishing & BoatingOil Exploration

Trucking & Shipping

Surveying & MappingPrecision Agriculture

Disease Control

Florida Department of Transportation

DID IT MOVE?GPS SRUCTURAL MONITORING

GPS/GIS Inspection and Analysis Tools for Highway Construction

Integrated GPS/GIS Application for Inspection and Analysis

• FDOT’s Microstation drawings converted into Geographical Information System (GIS) Basemaps, with correction to the proper projections; Specifications; and Pay Items' Original Quantities.

• Global Positioning System (GPS) Receivers Capture Pay Item Locations and Pertinent Dimensions for Quantities.

• Database to Store Inspection Results: Observed Quality of Construction, Lab. Test Results, etc. and Digital Images

• GIS Analyses and Database Queries Provide Monthly Display of Construction Progress and Estimate of Quantities, including As-Built Final Drawings and Quantities.

Minnesota Department of Transportation

• Asset Management• Engineering• Resource Management• Emergency Management• Zoning & Planning• Education

Hawaii Department of TransportationVirtual Reference Station

• What is VRS (Virtual Reference Station )

• •Real time centimeter measurements within the island-wide or state-wide network without setting up a base station

Estimated miles of leveling

• OahuEstimate of 211 miles• MauiEstimate of 251 miles• KauaiEstimate of 128 miles• Big IslandEstimate of 410 miles

Highway Characteristics Pavement Bridge/Structures Drainage ITS Sidewalk

Maryland Department of Transportation

Asset Data WarehouseInitial Assets to be include in the Data Warehouse

• The ARAN uses a combination of high resolution video, ultrasonic sensors, accelerometers, gyroscopes and GPS to collect data at highway speeds

• The Aran records cracking, rutting, roughness, grade, curve radius and more

• It also records right-of-way video as a permanent record of roadway inventory

Pavement Condition

California Department of Transportation

• U.S. DOT Partners with Caltrans for SafeTrip-21• SafeTrip-21, is designed to improve safety and

reduce congestion by identifying and harnessing existing technology and adapting it for transportation needs

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U.S. DOT Partners with California Department of Transportation for SafeTrip-21

• Partnership will field test GPS-equipped cellular phones from up to 10,000 volunteer commuters and transit vehicles transmitting data from roads in a 200 mile radius to traffic management centers.

• Commuters will have access to real-time traffic, transit and road safety information

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A “Responder” Problem

Question:“There’s a rock in the road. How big is it?”

Problem:How do you convey this information to someone

who isn’t there, looking at the rock alongside you?

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A Picture is Worth a Thousand Words

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What is Responder System?

GPS

Satellitemodem

Cellularmodem

Camera

Tablet PC

National Geodetic Survey - CORS

• Continuously Operating Reference Stations • 1800+ Stations • Several state DOT’s use CORS

http://www.ngs.noaa.gov/CORS/

National Geodetic Survey - CORS