Unspezifizierte Hydranten (541 insgesamt)
| Schlüssel | Anzahl |
| emergency | 541 |
| name | 151 |
| water_source | 104 |
| fire_hydrant:position | 96 |
| survey:date | 78 |
| fire_hydrant:diameter | 74 |
| ref | 69 |
| couplings:diameters | 54 |
| flow_rate | 52 |
| couplings:type | 51 |
| couplings | 45 |
| fire_hydrant:pressure | 43 |
| description | 25 |
| operator | 24 |
| fire_hydrant:couplings | 17 |
| fire_hydrant:flow_capacity | 17 |
| fire_hydrant:coupling_type | 16 |
| source | 9 |
| note | 8 |
| water_tank:volume | 8 |
| fire_hydrant:water_source | 4 |
| addr:street | 2 |
| access | 1 |
| bicycle | 1 |
| suction_point:position | 1 |
| fire_hydrant:type:zh | 1 |
| lit | 1 |
| railway | 1 |
| highway | 1 |
| foot | 1 |
| ele | 1 |
| note:de | 1 |
| fixme | 1 |
| surface | 1 |
| suction_point:type | 1 |
| created_by | 1 |