Merge pull request #3834 from lonvia/neighbourhoods

Improve handling of neighbourhoods in addresses

lib-sql/functions/placex_triggers.sql

@@ -530,6 +530,7 @@ CREATE OR REPLACE FUNCTION insert_addresslines(obj_place_id BIGINT,
   AS $$
 DECLARE
   address_havelevel BOOLEAN[];
+  place_min_distance FLOAT[];
 
   location_isaddress BOOLEAN;
   current_boundary GEOMETRY := NULL;
@@ -545,6 +546,7 @@ BEGIN
   nameaddress_vector := '{}'::int[];
 
   address_havelevel := array_fill(false, ARRAY[maxrank]);
+  place_min_distance := array_fill(1.0, ARRAY[maxrank]);
 
   FOR location IN
     SELECT apl.*, key
@@ -575,6 +577,10 @@ BEGIN
         END IF;
       END IF;
 
+      IF location.isguess and location.distance < place_min_distance[location.rank_address] THEN
+        place_min_distance[location.rank_address] := location.distance;
+      END IF;
+
       INSERT INTO place_addressline (place_id, address_place_id, fromarea,
                                      isaddress, distance, cached_rank_address)
         VALUES (obj_place_id, location.place_id, not location.isguess,
@@ -602,6 +608,16 @@ BEGIN
     -- If this is the first item in the rank, then assume it is the address.
     location_isaddress := not address_havelevel[location.rank_address];
 
+    -- Ignore guessed places when they are too far away compared to similar closer ones.
+    IF location.isguess THEN
+      CONTINUE WHEN not location_isaddress
+                    AND location.distance > 2 * place_min_distance[location.rank_address];
+
+      IF location.distance < place_min_distance[location.rank_address] THEN
+        place_min_distance[location.rank_address] := location.distance;
+      END IF;
+    END IF;
+
     -- Further sanity checks to ensure that the address forms a sane hierarchy.
     IF location_isaddress THEN
       IF location.isguess and current_node_area is not NULL THEN

settings/address-levels.json

@@ -21,7 +21,7 @@
           "croft" : 20,
           "subdivision" : 22,
           "allotments" : 22,
-          "neighbourhood" : [20, 22],
+          "neighbourhood" : 24,
           "quarter" : [20, 22],
           "isolated_dwelling" : [22, 25],
           "farm" : [22, 25],
@@ -48,14 +48,14 @@
           "" : [25, 0]
       },
       "landuse" : {
-          "residential" : 22,
-          "farm" : 22,
-          "farmyard" : 22,
-          "industrial" : 22,
-          "commercial" : 22,
-          "allotments" : 22,
-          "retail" : 22,
-          "" : [22, 0]
+          "residential" : 24,
+          "farm" : 24,
+          "farmyard" : 24,
+          "industrial" : 24,
+          "commercial" : 24,
+          "allotments" : 24,
+          "retail" : 24,
+          "" : [24, 0]
       },
       "leisure" : {
           "park" : [24, 0]
@@ -236,6 +236,17 @@
           "administrative11" : 20
       }
   }
+},
+{ "countries" : ["jp"],
+  "tags" : {
+      "boundary" : {
+          "administrative7" : 16,
+          "administrative8" : 18,
+          "administrative9" : 20,
+          "administrative10" : 22,
+          "administrative11" : 24
+      }
+  }
 }
 
 ]

test/bdd/features/db/import/placex.feature

@@ -135,9 +135,9 @@ Feature: Import into placex
           | object | rank_search | rank_address |
           | N2     | 30          | 30 |
           | W2     | 30          | 30 |
-          | W4     | 22          | 22 |
-          | R2     | 22          | 22 |
-          | R3     | 22          |  0 |
+          | W4     | 24          | 24 |
+          | R2     | 24          | 24 |
+          | R3     | 24          |  0 |
 
     Scenario: rank and inclusion of naturals
         Given the 0.4 grid

test/bdd/features/db/import/rank_computation.feature

@@ -114,10 +114,10 @@ Feature: Rank assignment
 
     Scenario: Admin levels must not be larger than 25
         Given the named places
-          | osm | class    | type           | admin | extra+place   | geometry |
-          | R20 | boundary | administrative | 6     | neighbourhood | (0 0, 0 2, 2 2, 2 0, 0 0) |
-          | R21 | boundary | administrative | 7     |               | (0 0, 0 1, 1 1, 1 0, 0 0) |
-          | R22 | boundary | administrative | 8     |               | (0 0, 0 0.5, 0.5 0.5, 0.5 0, 0 0) |
+          | osm | class    | type           | admin | extra+place | geometry |
+          | R20 | boundary | administrative | 6     | quarter     | (0 0, 0 2, 2 2, 2 0, 0 0) |
+          | R21 | boundary | administrative | 7     |             | (0 0, 0 1, 1 1, 1 0, 0 0) |
+          | R22 | boundary | administrative | 8     |             | (0 0, 0 0.5, 0.5 0.5, 0.5 0, 0 0) |
         When importing
         Then placex contains
           | object | rank_search | rank_address |