Use the Setup Dynamic Aggregation window to establish and save dynamic aggregation rule sets. These rule sets specify the source and destination tables, which columns to use as merging criteria (and the merging rules), and which columns to extract (and their aggregation rules such as average, min or max, first value observed, value over greatest distance, length-weighted average, etc.).
Note: Once these rule sets have been defined, they can be accessed and run at any time to re-segment the network or any selected subset of the network using Dynamic Aggregation.
To define a dynamic aggregation operation, the following information is required:
- An input table
- An output table of merged road segments
- For each column in the table, a set of merging rules for road segment boundaries and a set of aggregation rules to estimate data values for each merged road segment
Note: Only columns that are shared by both the input table and the output table are candidates for dynamic aggregation. Only columns in the input table are candidates for use in the merging rules.
The Setup Dynamic Aggregation window contains two panes: the Main pane and the Details pane.
