GIS Digitization + Conversion for Large Transportation Dataset

Rhea was contracted to provide geospatial services for the Metropolitan Washington Airports Authority (MWAA), which manages D.C. area airports and their associated transportation infrastructure. Rhea supported efforts to modernize MWAA’s geospatial data management strategy by digitizing existing paper parcel documents and integrating them into an Enterprise GIS system. Rhea’s GIS team built a geodatabase that included content from paper maps along with newly collected survey data. The new shapefiles were linked to the scanned, georeferenced parcel documents for use in future interactive maps.

Rhea was also tasked with converting a large dataset of rail data from CAD format to GIS, to integrate these features seamlessly into MWAA’s geospatial system. Rhea’s GIS specialists integrated files from Microstation, AutoCAD, and ArcGIS into a single geodatabase, while correcting errors and inconsistencies. The edges of adjacent features were matched, visually and in terms of coordinates, with 100 percent precision. All data created in this project were spatially continuous with a high degree of quality and accuracy.

Services: Land Surveying + Mapping

Industries: Aviation