The Spatial Information Services Department requires drawings in Microstation (.dgn) files. The following documents should be read by CADD Operators preparing the data.

Empty Architectural Microstation Seedfile Architectural (sydseedarc.dgn) where the units of measurement are in millimetres. File is an empty microstation file but is setup on Sydney Airport’s Coordinate System (MGA’94) and has the Aerodrome Datum Point as the Global Origin of the file with coordinates; Architectural - E. 331542904.00, N. 6242334670.00

Empty Civil Microstation Seedfile Civil (sydseedciv.dgn) where the units of measurement are in metres. File is an empty microstation file but is setup on Sydney Airport’s Coordinate System (MGA’94) and has the Aerodrome Datum Point as the Global Origin of the file with coordinates; Civil - E. 331542.904, N. 6242334.670

• CADD Manual for Data Exchange Vol 0 - Covering Pages
• CADD Manual for Data Exchange Vol 1 - Brief for Surveyors
• CADD Manual for Data Exchange Vol 2 - External Survey and Services
• CADD Manual for Data Exchange Vol 3 - Airport Lighting
• CADD Manual for Data Exchange Vol 4 - Building Services