Locating underground services and utilities using ground penetrating radar, electromagnetic and other technologies; locating telephone lines, electrical and CA TV lines, tracer wires, gas and water metallic pipes, fire and lighting systems; concrete scanning; locating and identifying energised power cables, rebar, post tension cables, metallic and non-metallic conduits in concrete slabs; quality assurance control of new structures; Inspection of the inside of new constructions; Inspection of the inside conditions of existing constructions for rehabilitation purposes; inspection of walls, floors, decks, support columns, beams, tunnel walls, roofs, inverts, parking lots and garages; locating voids behind walls and under concrete; mapping the thickness of bridge decks and concrete layers; detecting metallic and non- metallic objects; three-dimensional utility mapping and surveying; utility surveying; surveying utility design; GIS mapping; GIS application design