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Benefits and Applications of GPS for GIS

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Title: Benefits and Applications of GPS for GIS


1
Benefits and Applications of GPS for GIS
  • Bruce Peetz
  • Vice President Technology
  • Trimble
  • 19 October 2006

2
Agenda
  • GPS/GIS Overview Productivity at the front end
    of GIS
  • GPS/GIS Applications Real world examples
  • GPS Augmentation The sub meter explosion

3
How GPS and mobile information systems have
enhanced GIS
  • Ability to define data to be collected prior to
    field work
  • Data dictionaries
  • Ability to quickly and accurately collect
    information
  • Location and attribute information
  • Various levels of positional accuracy
  • Error checking on attribute entry
  • Compatibility with GIS and CAD systems

4
Ways GPS can be used in GIS
  • Data collection
  • Recording something, somewhere
  • What do I have?
  • What condition is it in?
  • Data maintenance
  • Verifying something, somewhere
  • Is the information I have correct?
  • Data use
  • Current and accurate data to support decision
    making
  • Finding the asset to perform maintenance/repair

5
GPS/GIS Applications in Planning
  • Urban Regional Planning
  • Data collection/maintenance (rural addresses,
    fire hydrant, signpost inventories)
  • Cadastral/Land Parcel Delineation
  • Emergency Planning Response
  • Emergency response (wildfire, hurricane)
  • Pre-event risk assessment
  • Forestry
  • Data collection/maintenance
  • Tree inventory, logging roads, watershed

6
GPS/GIS Applications in Engineering
Construction
  • Construction management
  • Mapping and relocation of assets in lay down yard
  • Hazardous materials location
  • Road and highway construction
  • Inventory of existing infrastructure
  • Pavement management
  • Bridge and railroad inspection
  • Accurate location of inspection
  • Navigation to location of previous inspection

7
GPS/GIS Applications in Utilities Communications
  • Asset/infrastructure management
  • Inventory of streetlights, utility poles, storm
    water facilities
  • Mapping and relocation of underground assets
  • Cable, Telephone, Electric
  • Pipeline integrity management

8
Real World GPS/GIS Applications
  • West Nile Virus - Richland County, South Carolina
  • Mosquito control personnel would pencil in data
    on cumbersome sheets of paper
  • Field paperwork would stack up back in the office
    and get recorded once a month. The data would
    then have to be re-entered into a database.

9
Real World GPS/GIS Applications
  • Enter Mobile GIS
  • Field crews are now collecting data and
    transferring it back to the GIS using a custom
    field application (Mosquito.Mobile) on rugged,
    sub-meter Geo XT running Windows Mobile
  • Benefits
  • Mobile GIS has allowed for improved analysis
    using location of mosquito breeding sites,
    location of infected birds combined with mosquito
    density, rainfall and demographic data
  • Now when an infected bird is located they are
    able to notify local child and senior-care
    centers within hours

10
Real World GPS/GIS Applications
  • GIS Road Sign Inventory and Maintenance - Boulder
    County, Colorado
  • Mobile GIS/GPS systems running ArcPad
  • Database on the handheld contains 7,000 signs
    along with attributes such as sign type and sign
    condition
  • Field to Office
  • Provides consistent flow from Mobile GIS device
    to database
  • Data is then sent via network to master database
    and back to field user Field to Office
  • Provides consistent flow from Mobile GIS device
    to database
  • Data is then sent via network to master database
    and back to field user

11
Real World GPS/GIS Applications
  • Cadastre/Land Administration and Titling
  • INCRA, Brazil 300 Pro XR systems in use for
    land redistribution
  • PETT (Proyecto Especial de Tiutulacion de
    Tierras), Peru Pro XR systems
  • IDB-funded project to formalize boundaries and
    legal title, produce cadastral maps, and record
    and deliver 525,330 titles in the Coast and
    Sierra regions to beneficiaries
  • The end result will be about 178,131 new titles
    handed over to beneficiaries.

12
Real World GPS/GIS Applications
  • Centrales Electricas de Goias
  • GPS/GIS used to collect data on 1,800,000 poles
    across 34,000 KM2
  • 12 month project involving 160 field technicians
    and 16 QA personnel
  • GeoXM and Recon GPS selected to meet 3 meter
    accuracy requirement
  • Custom Mobile GIS application Electropocket by
    Soltec

13
GPS AugmentationNationwide DGPS
  • Corrections from NDGPS sites are used in
    combination with GPS position information to
    protect U.S. public safety, manage and operate
    the nations utility infrastructure and protect
    health and the environment

14
GPS Augmentation NDGPS impact on public health,
safety, and utilities
  • Public safety
  • National Park Service employees use corrections
    from NDGPS sites in forest fire management
  • Public health
  • Oakland County, Michigan used corrections from
    NDGPS site to map the location of wells and
    septic systems
  • Utility operations
  • Emerald County Utilities Authority in Pensacola,
    Florida used corrections from NDGPS sites to map
    and relocate critical utility infrastructure
    following recent hurricanes

15
GPS AugmentationAdvantages of NDGPS vs. WAAS
  • NDGPS correction signals curve around the Earth's
    surface, so users are not limited to
    "line-of-sight" reception. Natural or man-made
    obstructions, such as buildings, hills or
    vegetation, typically don't interfere with signal
    reception

16
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