Transportation Research Record Journal of the Transportation Research Board · 1994 · 11 citations · 0 references
Lee EngineeringLocation InformationEngineeringSmart CityGlobal Navigation Satellite SystemPositioning SystemSocial SciencesSign InventoryGeographic Information SystemsData ScienceGlobal Positioning SystemLocation AwarenessSpatial Data ManagementSystems EngineeringData IntegrationData ManagementStatisticsCartographyGeographySpatial Data AcquisitionSpatial Information SystemGlobal Satellite Navigation SystemsGeospatial Data
Global positioning system (GPS) units are fast becoming powerful tools for collecting data for use with geographic information systems (GIS). The data collection process for a sign inventory conducted by Lee Engineering in Washington, D.C., is described. In the conduct of the sign inventory project, GPS was used where possible. However, the GPS was determined not to be the best method of data collection in all instances. In sections of the study area near the downtown core, taller buildings effectively blocked satellite signals.