You can split an existing zone into to new zones.
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Note: If you want to generate three or more zones out of a zone, you need to repeat the split operation accordingly. |
1. In the Network editor window, click the Edit mode icon 
.
2. In the Network window, click the Zones button.
3. In the network, click the centroid or within the boundary of the zone that you want to split.
4. Press F8.
The Enter split weights for demand matrices window opens.
5. Make the desired changes.
|
Element |
Description |
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Zone number |
Number of the original zone (first field) and the new zones. The new zone numbers are assigned consecutively and numbered from the highest zone number in the network. You can overwrite the preset numbers later (Properties and options of zones). |
|
Origin weight |
Split factors which, for each new zone, determine the percentage of the production of the original total zone (suggested values: 0.5 each, where 0.5 equals 50 %). Note The split factors need to add up to 1.0 (per 100 % production). |
|
Destination weight |
Split factors which, for each new zone, determine the percentage of the attraction of the original total zone (suggested values: 0.5 each, where 0.5 equals 50 %). Note The split factors should add up to 1.0 (per 100 % attraction). |
6. Confirm with OK.
A query opens.
7. Confirm with Yes or Yes for all.
The existing zone is deleted and the centroids of the new zones are inserted.
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Notes: You can then define the zone border (Managing boundaries of polygonal network objects). The connectors of the split zone are used for each new zone. For each new zone, the demand matrix is adjusted according to the split factors (Modeling demand). |
