diff -r 34a84c0a427c -r 63cfc4b10f9c project.mml
--- a/project.mml	Sat Sep 26 00:55:46 2020 +0300
+++ b/project.mml	Sat Sep 26 00:55:58 2020 +0300
@@ -300,6 +300,20 @@
 			table: *road_sql
 		properties:
 			minzoom: 10
+	- id: bus-route-layer-n1
+		geometry: linestring
+		<<: *extents
+		Datasource:
+			<<: *osm2pgsql
+			table: &bus_routes_sql |-
+				(SELECT DISTINCT
+					way,
+					COALESCE(layer::integer, 0) AS layer
+					FROM planet_osm_routes
+					WHERE "route" = 'bus'
+				) AS bus_routes
+		properties:
+			minzoom: 15
 	- id: rail-layer-n1
 		geometry: linestring
 		Datasource:
@@ -343,6 +357,14 @@
 			table: *road_sql
 		properties:
 			minzoom: 12
+	- id: bus-route
+		geometry: linestring
+		<<: *extents
+		Datasource:
+			<<: *osm2pgsql
+			table: *bus_routes_sql
+		properties:
+			minzoom: 15
 	- id: rail
 		geometry: linestring
 		Datasource:
@@ -385,6 +407,14 @@
 			table: *road_sql
 		properties:
 			minzoom: 12
+	- id: bus-route-layer-1
+		geometry: linestring
+		<<: *extents
+		Datasource:
+			<<: *osm2pgsql
+			table: *bus_routes_sql
+		properties:
+			minzoom: 15
 	- id: rail-layer-1
 		geometry: linestring
 		Datasource:
@@ -888,3 +918,18 @@
 				) AS commuter_trains
 		properties:
 			minzoom: 15
+	- id: bus-ref
+		geometry: linestring
+		<<: *extents
+		Datasource:
+			<<: *osm2pgsql
+			table: |-
+				(SELECT
+					way,
+					ref
+					FROM planet_osm_routes
+					WHERE "route" = 'bus' AND ref IS NOT NULL
+					ORDER BY ref
+				) AS commuter_trains
+		properties:
+			minzoom: 17