Disable steps in highways

layers/highway/highway.sql

@@ -34,15 +34,27 @@ RETURNS TABLE(osm_id bigint, geometry geometry, class highway_class, subclass te
 		UNION ALL
 		SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
         FROM osm_highway_linestring
-		WHERE zoom_level = 12 AND to_highway_class(highway) < 'minor_road'::highway_class AND NOT highway_is_link(highway)
+		WHERE zoom_level = 12
+            AND to_highway_class(highway) < 'minor_road'::highway_class
+            AND NOT highway_is_link(highway)
+            AND NOT is_area
         UNION ALL
 		SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
         FROM osm_highway_linestring
-		WHERE zoom_level = 13 AND to_highway_class(highway) < 'path'::highway_class
+		WHERE zoom_level = 13
+            AND to_highway_class(highway) < 'path'::highway_class
+            AND NOT is_area
         UNION ALL
 		SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
         FROM osm_highway_linestring
-		WHERE zoom_level >= 14
+		WHERE zoom_level >= 14 AND NOT is_area
+        UNION ALL
+        -- NOTE: We limit the selection of polys because we need to be careful to net get false positives here because
+        -- it is possible that closed linestrings appear both as highway linestrings and as polygon
+		SELECT osm_id, geometry, highway, FALSE AS is_bridge, FALSE AS is_tunnel, FALSE AS is_ford, FALSE AS is_ramp, FALSE AS is_oneway, z_order
+        FROM osm_highway_polygon
+        -- We do not want underground pedestrian areas for now
+		WHERE zoom_level BETWEEN 13 AND 14 AND is_area AND COALESCE(layer, 0) >= 0
     ) AS zoom_levels
     WHERE geometry && bbox
     ORDER BY z_order ASC;

layers/highway/mapping.yaml

@@ -1,19 +1,19 @@
 generalized_tables:
   highway_linestring_gen4:
     source: highway_linestring_gen3
-    sql_filter: highway IN ('motorway','trunk')
+    sql_filter: highway IN ('motorway','trunk') AND NOT is_area
     tolerance: 200.0
   highway_linestring_gen3:
     source: highway_linestring_gen2
-    sql_filter: highway IN ('motorway','trunk', 'primary')
+    sql_filter: highway IN ('motorway','trunk', 'primary') AND NOT is_area
     tolerance: 120.0
   highway_linestring_gen2:
     source: highway_linestring_gen1
-    sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary')
+    sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary') AND NOT is_area
     tolerance: 50.0
   highway_linestring_gen1:
     source: highway_linestring
-    sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary', 'tertiary')
+    sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary', 'tertiary') AND NOT is_area
     tolerance: 20.0
 tables:
   highway_linestring:
@@ -31,6 +31,9 @@ tables:
       type: string
     - name: z_order
       type: wayzorder
+    - name: layer
+      key: layer
+      type: integer
     - key: tunnel
       name: is_tunnel
       type: bool
@@ -77,9 +80,29 @@ tables:
       - service
       - path
       - cycleway
-      - steps
       - bridleway
       - footway
       - corridor
       - crossing
       - pedestrian
+  highway_polygon:
+    type: polygon
+    fields:
+    - name: osm_id
+      type: id
+    - name: geometry
+      type: geometry
+    - name: highway
+      key: highway
+      type: string
+    - name: z_order
+      type: wayzorder
+    - name: layer
+      key: layer
+      type: integer
+    - name: is_area
+      key: area
+      type: bool
+    mapping:
+      highway:
+      - pedestrian