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DOTD standards for GPS data collection accuracy : research project capsule.
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2013-12-01
[PDF-139.04 KB]
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Abstract:Global Navigational Satellite Systems (GNSS), which includes GPS technologies
maintained by the United States, are used extensively throughout government
and industry. These technologies continue to revolutionize positional data
collection activities. Despite the increased accuracy, reduced cost, and improved
data acquisition effi ciencies, the Louisiana Department of Transportation and
Development (DOTD) has no established standards or methods to guide its
general staff and contractors in the appropriate use of GNSS technology to
ensure application-specifi c data accuracy requirements and that a Department
minimum are met. Because the DOTD Surveying Section already collects highly
accurate and precise data, these standards are not intended for them. Instead,
these standards are intended for staff that collect GPS data from mapping-grade
applications. There is a need to develop standards and techniques for staff
who collect GPS Data, separate from the survey section, to ensure a minimum
standard and level of accuracy, not only for a confi dence level in the data, but also
to ensure compatible software and equipment support and training.
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