Is it possible to re-name links, nodes or zones, to release partly occupied numbering ranges? Yes, a new feature in Visum 14 offers for many network object classes the function "Renumbering":
- Main nodes
- Main zones
- Count locations
- Stop points
- Stop areas
- Lines (Vehicle journeys/Coupling sections)
-> (Right click to open the context menu) -> Renumbering (Screenshots 1-2)
Without this feature a model might run out of available IDs. The suggested value for the ID-offset when reading additively or when using model transfer files is always the highest existing ID+1. Thereby in many cases (particularly by using external identifiers for IDs), long IDs could develop which may cause overflows.
With Visum 14, reading a network additively offers a new conflict avoidance option, to renumber the IDs for multiple network object classes (Screenshot 3). The “offset” holds the count for the existing network objects, which are renumbered from 1, and this counting is continued for the new added objects.
A workaround for Visum 13 and older uses a script solution, which is available in our FAQs.
For anyone who still wants to perform any renumbering per COM: Visum 14 offers for many more network object classes as listed above the COM method “Renumber”.