Add roads from NaturalEarth

schema/create_schema.sh

@@ -19,6 +19,7 @@ function main() {
     exec_psql_file "layers/water.sql"
     exec_psql_file "layers/building.sql"
     exec_psql_file "layers/boundary.sql"
+    exec_psql_file "layers/road.sql"
 }
 
 main

schema/layers/road.sql

@@ -0,0 +1,31 @@
+CREATE OR REPLACE VIEW ne_10m_global_roads AS (
+    SELECT geom, scalerank, featurecla as featureclass, type
+    FROM ne_10m_roads WHERE continent <> 'North America'
+    UNION ALL
+    SELECT geom, scalerank, class as featureclass, type
+    FROM ne_10m_roads_north_america
+);
+
+CREATE OR REPLACE VIEW road_z4 AS (
+    SELECT *
+    FROM ne_10m_global_roads
+    WHERE scalerank <= 4
+);
+
+CREATE OR REPLACE VIEW road_z5 AS (
+    SELECT *
+    FROM ne_10m_global_roads
+    WHERE scalerank <= 5
+);
+
+CREATE OR REPLACE VIEW road_z6 AS (
+    SELECT *
+    FROM ne_10m_global_roads
+    WHERE scalerank <= 6
+);
+
+CREATE OR REPLACE VIEW road_z7 AS (
+    SELECT *
+    FROM ne_10m_global_roads
+    WHERE scalerank <= 7
+);