Accurate maps of the sanitary sewer system are critical to the success of maintenance or sewer system evaluation programs. Map correction can provide updated information regarding line and manhole placement and may also locate manholes that could not previously be found. As part of an overall system evaluation program, a client's manhole numbering system will be used. If there is not a system already in place, ADS Environmental Services will develop one. The manhole numbering system is used to aide in documentation of system defects in the project database. ADS' database for manhole asset inventory and management is Microsoft Access, which allows export into popular GIS and desktop mapping (DTM) systems.
For digital mapping, ADS Pipeline can utilize AutocadTM, MapInfoTM, and ArcviewTM, along with conversions from and to other mapping software. The use of desk-top mapping allows ADS to display the data gathered from the field on the collection system map. With DTM, clients receive a bird's eye-view of spatial deterioration patterns that graphically illustrate portions of the sewer infrastructure in need of rehabilitation.