Horizontal and Vertical Control Surveys

DAI is able to perform horizontal and vertical control surveys using four methods: • Conventional Surveying instrumentation and procedures, which include using electronic, total stations and differential leveling instruments. • Global Positioning System (GPS) instrumentation and procedures such as Static, Fast-Static, and/or RTK using dual-frequency receivers. • Hybrid control system, which includes a combination of both conventional and GPS technologies. DAI has extensive experience in providing control surveys and has established control monumentation for construction projects, right-of-way acquisition surveys, and conventional design surveys to support aerial mapping surveys. • Aerial mapping surveys for large and small digital mapping, vertical aerial photography, CADD translations, GPS surveys, volume calculations, photo mosaics, digital orthophotos, analytic aerotriangulation, digital cross-sections and profiles, digital terrain modeling, photo enlargements, contour generation, GIS planning.