Project involved the vectorization of

• Sewage collection system network layout from each sheet.
• The information captured from each sheet was stitched up (mosaic) to form one CAD map detailing the entire sewage collection system of the area.
• The sewage collection system was superimposed on the existing map in CAD format of the area elaborating the Roads and the Parcels.

The specifications required each Manhole, Sump pump, Diversion box, Lift Station, etc, to be tagged with attributes such as Identification number, sheet number (the paper drawing number), depth and rim diameter. Each pipeline was assigned as attribute with a Identification number (combination of the manholes at both ends which also described the flow), sheet number, length, slope, diameter and the material of the pipe. The attribute were extracted to form a database of the entire collection system.

AutoLISP programs were developed to speed up the vectorization process as well as to automate the creation of certain attributes like sheet numbers and the pipe identification numbers.

The final seamless sewage collection drawings were delivered to the client in 20 working days.

The project cost the client one sixth of that quoted by a similar company to Digitise IT in the US.

"I would like to commend you on your quality control and your persistent questions to make sure that the project has been completed on time and with high quality."
Mr. Tim F. Taylor, P.E, Associate