I have often wondered what these strange markings on pavements and posts were and now I know!
It’s a services mark up required prior to the start of construction to ensure we don’t cut of anyone’s gas, water, phone or electricity supply or damage any stormwater or sewage pipe!
Probably not a good idea to mess up on that before you move into the neighbourhood!
Just so you know
Orange = Electric, Lighting Cables
Yellow = Gas
Purple = Telecom, Alarm or Signal Lines
Blue = Water
Pink = Stormwater, Irrigation and Drainage Lines
Red = Waster Water (sewer)