In This Issue
• Carlson’s 30th • Visit to Breithaupt • Safety • Mesoamericans • ExpressMap • SurvPC • $15,000 Question • Monument Placement • Feedback • Curt Brown • Haunted by the Past
St. Charles Parish Overcomes GNSS Signal Shadow Issues with Trimble Floodlight Technology
Written by Trimble Mapping & GIS Division
Friday, 30 March 2012
PROJECT: Trimble Floodlight satellite shadow reduction technology enables St. Charles Parish Waterworks crews to maintain productivity in all mapping environments
SUMMARY: In an effort to improve the accuracy of its GIS maps, St. Charles Parish, La., purchased its own GNSS equipment. The parish Waterworks Department experienced outstanding results when mapping water infrastructure features—except when working beneath the parish’s towering oak trees, which deflected or blocked GNSS satellite signals. The parish upgraded to the Trimble® GeoExplorer® 6000 series of mapping GNSS handhelds with Trimble Floodlight™ technology and saw an immediate improvement in productivity and accuracy.
PROJECT DATE: Deployed in 2011
The last straw for St. Charles Parish, La., came when an underground water pipeline burst beneath a busy street. Traffic had to be diverted as the water continued to spill out onto the pavement. A half hour passed, and then another, before personnel from the Waterworks Department found the shutoff valve and stopped the deluge. The delay was caused by a faulty map that incorrectly showed the valve’s location on the other side of the street...
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Note: This article originally appeared on the Machine Control Online website and is the result of a presentation made at the recent Esri/ACSM Survey Summit in San Diego.
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