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| Μοντέλα Τοποθέτησης-Διάθεσης (Location-Allocation Models)× | Ανάλυση Περιοχής Εξυπηρέτησης× | |
|---|---|---|
| Πεδίο | Χωρική Ανάλυση | Χωρική Ανάλυση |
| Οικογένεια | Process / pipeline | Process / pipeline |
| Έτος προέλευσης≠ | 1963 | 2001 |
| Δημιουργός≠ | Leon Cooper; S. L. Hakimi | Harvey Miller & Shih-Lung Shaw |
| Τύπος≠ | Spatial facility-location optimization | Network GIS pipeline |
| Θεμελιώδης πηγή≠ | Cooper, L. (1963). Location-allocation problems. Operations Research, 11(3), 331–343. DOI ↗ | Miller, H. J., & Shaw, S.-L. (2001). Geographic Information Systems for Transportation: Principles and Applications. Oxford University Press. ISBN: 978-0-19-512394-4 |
| Εναλλακτικές ονομασίες | facility location, p-median problem, maximal covering location problem, yer-tahsis modelleri | Isochrone Analysis, Network Catchment Area Analysis, Travel-Time Polygon Analysis, Hizmet Alanı Analizi |
| Συναφείς≠ | 4 | 3 |
| Σύνοψη≠ | Location-allocation models decide where to place a set of facilities and simultaneously assign demand points to them so as to optimize an objective such as total travel cost, worst-case distance, or population covered. Rooted in the operations-research work of Cooper (1963) and Hakimi (1964) and central to network GIS, they answer questions like where to site warehouses, hospitals, fire stations, or schools to best serve a spatially distributed population. | Service Area Analysis delineates the geographic region reachable from one or more origin facilities within a specified travel cost — typically time, distance, or generalized impedance — by traversing a real road or transit network. It is widely used by urban planners, public health officials, logistics managers, and emergency response coordinators who need to understand actual accessibility rather than simple straight-line buffers. |
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