Error
The OD Cost Matrix layer produces altered travel time when implementing a point barrier not intersecting with the generated Line.
| Número de ID del error | BUG-000173139 |
|---|---|
| Enviado | December 18, 2024 |
| Última modificación | December 30, 2024 |
| Relacionado con | ArcGIS Pro |
| Versión encontrada | 3.4 |
| Sistema operativo | Windows OS |
| Versión de sistema operativo | 10.0 64 Bit |
| Estado | Known Limit |
Información adicional
This type of behavior isn't unusual when solving network analysis problems using hierarchy, which employs a heuristic algorithm to search the network graph quickly at the expense of a small amount of optimality in some cases. Most likely what is happening is the added point barrier is expanding the area of the hierarchical graph search and finding a better result with the barrier compared to without the barrier. When barriers are added, a neighborhood around the barrier where the hierarchical search can behave like a non-hierarchical search is computed, and it tries to find a better path around a barrier. It is possible for the barrier to search with this non-hierarchical neighborhood to result in a shorter path than a hierarchical search because it's examining a part of the network that would be ignored in a normal hierarchical search.Solución alternativa
For solves always consistent and guaranteed to always return the fully optimal solution, turn off hierarchy, though this makes the solves slower.
Pasos para reproducir
ID del error: BUG-000173139
Software:
- ArcGIS Pro
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