Research Article
Fuzzy Reliability in Spatial Databases
Table 10
Weights assigned to the layers of each thematic dataset for the isoreliable zone O1.
| Thematic dataset | Layer | Weight |
| Aerial photogrammetric data | (1.1) Streets | 4 | (1.2) Buildings | 4 | (1.3) Spot elevations | 3 | (1.4) Contours | 3 |
(2) Cadastral data | (2.1) Terrain parcels | 4 | (2.2) Buildings parcels | 4 | (2.3) Land use | 3 |
(3) Hydrology | (3.1) Rivers | 3 | (3.2) Lakes | 3 | (3.3) Aquifers | 2 |
(4) Geology | (4.1) Surface geology | 4 | (4.2) Land slides | 3 | (4.3) Alluvial zones | 3 |
(5) Infrastructural networks | (5.1) Road network | 4 | (5.2) Drainage system | 3 | (5.3) Water supply network | 3 | (5.4) Electricity grid | 2 |
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