The Institute for Transportation Research and Education at North Carolina State University conducted a follow-up study to a previous North Carolina Department of Transportation (NCDOT) project, comparing mobile inventory data collection vehicles to manually-collected data techniques. The follow-up study included two additional aspects: 1) a visual component to the comparison analysis using GIS software ArcMap 10, and 2) a two-way communications loop with a thorough submission of a sample data set to be analyzed prior to the submission of a full data set. The results show that vendors can accurately locate the vast majority of assets, the primary exception being those that are occluded by vehicles or surrounding landscaping, such as those assets in the median. Following location of the asset, vendors showed promise collecting many of the feature descriptions such as asset type and condition.

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