Naudingų vietų žymekliai / Ženklai naudingoms įrenginiams - Slydimo plokštės / Montavimo plokštės naudingoms įrenginiams
"Utility location is the process of identifying and labeling public utility mains that are underground. These mains may include lines for telecommunication, electricity distribution, natural gas, cable television, fiber optics, traffic lights, street lights, storm drains, water mains, and wastewater pipes. In some locations, major oil and gas pipelines, national defense communication lines, mass transit, rail, and road tunnels also compete for space underground."
White with red frame fire services (hydrants, suction points etc.)
Blue drinking water
Yellow gas
Green sewage and drain lines
Orange hot water/steam lines for district heating
White or high-voltage power lines and telecommunication cables
Grey
Brown pipelines for oil and other flammable liquids