The Network Table

The Network table contains information that summarizes the routes that are loaded in to the simulation model. Like the Block Attribute table, the Network table can be indexed by planning period. Most of the information is identical to the Route tables, but is consolidated in to a single table.

The Network table displays all of the attributes that are in the attribute table of the GIS file that contains the road location information. These attributes are copied verbatim. Additional columns in the Network table are as follows:

Table 21. Network Table Attributes

AttributeDescription
LABELThis column contains the value of the join key that links the route attributes to the GIS file. This value will be a duplicate of the join key column in the GIS file.
INDEXThe INDEX column contains a numeric row number used internally to associate road segments with modelling attributes. The index number starts at 0.
BUILTLENGTHThe amount of road that is scheduled to be built during this planning period. Roads that exist prior to the start of the simulation will record their length in this column in period zero.
BUILD_EXPENSE The cost of building roads in this planning period. This field will show the cost of building a road if the road is built in that planning period. Otherwise, the column will have a value of zero.
MAINTAIN_EXPENSE The cost of maintaining the road during this planning period. This field will show the maintenance cost of this road only if it it being used to transport products during this planning period.
INITIAL_USE This column shows the planning period in which the road was first used. Roads that exist prior to the start of the simulation have a value of 0. Roads that are not built or used will also have a value of 0.
VOLUME The total volume of product that is transported over the road segment, regardless of the product type or destination.


The following columns are repeated in the network table for each destination. Each column name is prefixed with the destination name.

Table 22. Network Table Attributes (continued)

AttributeDescription
destination.VOLUME The amount of volume that is transported other this road segment during this planning period for this destination.
destination.ADDEDVOLUME The amount of volume added to the road network at this segment during this planning period for this destination.
destination.HAUL_EXPENSE The cost of hauling wood over this road segment during this planning period for the destination.
destination.FLOW The direction of flow of wood over the road segment during this planning period in order to forward the wood to the destination.