Standard Level Applications for Pipeline Drafting
Beginning with MicroStation V8, the District has coordinated level assignments between the Facility, Pipeline and Survey drafting groups. These groups now share the same level structure. Level assignments have been split into groups of related items. These level applications should be followed for all drawings. The proper relationship between drawings and disciplines depends on the consistent use of levels. Any modification to the level applications should be approved in writing by the District CAD Contact.
Levels also control the appearance of hard copy plots. See the section on Plotting for additional information.
Within each group, spare levels are available to accommodate unusual drawing requirements. Spare levels may be used as required, but should be used to depict items in the same category. When a consultant uses any spare levels, the use of these levels should be consistent from one drawing to the next. An updated level application list shall be submitted at the completion of each project, indicating how spare levels were used for that project..
Levels are stored in DGNLIB files
The Pipeline Drafting standard MicroStation configuration will automatically attach a set of level DGNLIB files to each file. These DGNLIB's contain all of the levels required for all drawings. Creation of new levels is restricted. No new levels should be added without approval from the District CAD Contact.
Spare Levels and Non-Plot Levels
Spare Levels and Non-Plotting levels (levels that are ignored when plotted with the Pen Table) are available in each level group. The spare levels may be used for unique items that are not covered by any other level. The Non-Plot or Scratch levels may be used for any construction elements or notations that you do not want to plot.