United States Department of Transportation
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High accuracy dynamic highway mapping using a GPS/INS/CCD system with on-the-fly GPS ambiguity resolution : executive summary.
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2004-09-01
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OCLC Number:694096854
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Edition:Executive summary
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NTL Classification:NTL-GEOGRAPHIC INFORMATION SYSTEMS-GEOGRAPHIC INFORMATION SYSTEMS
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Abstract:Conventionally, the road centerline surveys have
been performed by the traditional survey methods,
providing rather high, even sub-centimeter level of
accuracy. The major problem, however, that the
Departments of Transportation face, is the safety of
the survey crew and the disruptions to the traffic
flow, and to a large extent – even inaccessibility of
some highways to the surveys crews due to safety
hazard. The survey cost also becomes an issue, as
due to the traffic and other environmental
constraints, these surveys are relatively expensive,
while the rate of production is slow, and therefore,
frequent updates (re-surveys) are not feasible. This
prompted the Ohio Department of Transportation,
District 1, to replace the conventional survey by an
automated mobile mapping system, which would
collect the data while moving at the traffic speeds,
ensuring at the same time the safety of the survey
personnel.
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