Arcs carry commodities between nodes.
Each arc connects two attach points that represent the same commodity on two different nodes.
An arc carries one commodity.
The following table lists the arc fields and symbolic tags in Strategic Network Optimization:
| Field | Symbolic Tag | Meaning |
|---|---|---|
| Name | <name> | The name of the arc. |
| Currency | <currency> | The local currency used in the arc. The currency must already be defined in the Currency Table. |
| Commodity | <commodity> | Commodity flowing through the arc. |
| From | <from> | Node from which the commodity flows. |
| To | <to> | Node into which the commodity flows. |
| Distance | <distance> | Geographic distance between the nodes an arc connects. Calculated based on the Long and Lat values of the nodes. Displayed in kilometers by default but can be displayed in miles. |
| Map Arc Color | <maparcolor> | Determines the color of arc in Map Mode. You can specify a color or an expression. |
| Flow | <flow> | The amount of commodity flowing through the arc. |
| Fix | <fixed> | Commodity flow fix field. Valid values are:
|
| Oppor. | <opportunity> | Opportunity cost. The possible reduction to the overall cost that results from a unit increase in the minimum or maximum flow. |
| Cost | <cost> | Cost, per unit, of commodity flowing through the arc. |
| Cost in Currency | <costincurrency> | Cost, per unit, of commodity flowing through the arc, displayed in local currency. |
| Revenue* | Revenue, per unit, of commodity flowing through the arc. | |
| Revenue in Currency* | Revenue, per unit, of commodity flowing through the arc, displayed in local currency. | |
| Category | <category> | This drop-down lists displays alert types; Demand, Inventory, Manufacturing, Transportation, Supply, and Other. |
| Min | <min> | Minimum amount of commodity that should flow through the arc. |
| Max | <max> | Maximum amount of commodity that can flow through the arc. |
| Baseline | <baseline> | The value of the Flow field and is not changed by subsequent solves. |
| Advance Basis* | <stat> | The value calculated from the basis of the last solve. If you discard the advance basis, these values are removed from the model. |
| Delta | <delta> | The difference between the current solve and the baseline. |
* No symbolic tag. Values are not stored in .sym or .imp files.
The values are not stored because revenue is calculated using the Cost field (revenue = - cost).