diff --git a/layers/transportation/class.sql b/layers/transportation/class.sql
index b15196e..8545430 100644
--- a/layers/transportation/class.sql
+++ b/layers/transportation/class.sql
@@ -9,7 +9,7 @@ $$ LANGUAGE SQL IMMUTABLE STRICT;
 
 -- The classes for highways are derived from the classes used in ClearTables
 -- https://github.com/ClearTables/ClearTables/blob/master/transportation.lua
-CREATE OR REPLACE FUNCTION highway_class(highway TEXT, public_transport TEXT) RETURNS TEXT AS $$
+CREATE OR REPLACE FUNCTION highway_class(highway TEXT, public_transport TEXT, construction TEXT) RETURNS TEXT AS $$
     SELECT CASE
         WHEN highway IN ('motorway', 'motorway_link') THEN 'motorway'
         WHEN highway IN ('trunk', 'trunk_link') THEN 'trunk'
@@ -18,7 +18,18 @@ CREATE OR REPLACE FUNCTION highway_class(highway TEXT, public_transport TEXT) RE
         WHEN highway IN ('tertiary', 'tertiary_link') THEN 'tertiary'
         WHEN highway IN ('unclassified', 'residential', 'living_street', 'road') THEN 'minor'
         WHEN highway IN ('pedestrian', 'path', 'footway', 'cycleway', 'steps', 'bridleway', 'corridor') OR public_transport IN ('platform') THEN 'path'
-        WHEN highway IN ('service', 'track', 'raceway', 'construction') THEN highway
+        WHEN highway IN ('service', 'track', 'raceway') THEN highway
+        WHEN highway = 'construction' THEN CASE
+          WHEN construction IN ('motorway', 'motorway_link') THEN 'motorway_construction'
+          WHEN construction IN ('trunk', 'trunk_link') THEN 'trunk_construction'
+          WHEN construction IN ('primary', 'primary_link') THEN 'primary_construction'
+          WHEN construction IN ('secondary', 'secondary_link') THEN 'secondary_construction'
+          WHEN construction IN ('tertiary', 'tertiary_link') THEN 'tertiary_construction'
+          WHEN construction IS NULL OR construction IN ('unclassified', 'residential', 'living_street', 'road') THEN 'minor_construction'
+          WHEN construction IN ('pedestrian', 'path', 'footway', 'cycleway', 'steps', 'bridleway', 'corridor') OR public_transport IN ('platform') THEN 'path_construction'
+          WHEN construction IN ('service', 'track', 'raceway') THEN CONCAT(highway, '_construction')
+          ELSE NULL
+        END
         ELSE NULL
     END;
 $$ LANGUAGE SQL IMMUTABLE;
diff --git a/layers/transportation/layer.sql b/layers/transportation/layer.sql
index 651ea5b..72f3ecf 100644
--- a/layers/transportation/layer.sql
+++ b/layers/transportation/layer.sql
@@ -12,7 +12,7 @@ indoor INT, surface TEXT) AS $$
     SELECT
         osm_id, geometry,
         CASE
-            WHEN NULLIF(highway, '') IS NOT NULL OR NULLIF(public_transport, '') IS NOT NULL THEN highway_class(highway, public_transport)
+            WHEN NULLIF(highway, '') IS NOT NULL OR NULLIF(public_transport, '') IS NOT NULL THEN highway_class(highway, public_transport, construction)
             WHEN NULLIF(railway, '') IS NOT NULL THEN railway_class(railway)
             WHEN NULLIF(aerialway, '') IS NOT NULL THEN aerialway
             WHEN NULLIF(shipway, '') IS NOT NULL THEN shipway
@@ -21,7 +21,7 @@ indoor INT, surface TEXT) AS $$
         CASE
             WHEN railway IS NOT NULL THEN railway
             WHEN (highway IS NOT NULL OR public_transport IS NOT NULL)
-                AND highway_class(highway, public_transport) = 'path'
+                AND highway_class(highway, public_transport, construction) = 'path'
                 THEN COALESCE(NULLIF(public_transport, ''), highway)
             ELSE NULL
         END AS subclass,
@@ -39,13 +39,13 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_transportation_merge_linestring_gen7 -> layer_transportation:z4
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-	    NULL AS surface,
+	          NULL AS surface,
             z_order
         FROM osm_transportation_merge_linestring_gen7
         WHERE zoom_level = 4
@@ -54,7 +54,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_transportation_merge_linestring_gen6 -> layer_transportation:z5
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -68,7 +68,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_transportation_merge_linestring_gen5 -> layer_transportation:z6
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -82,7 +82,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_transportation_merge_linestring_gen4  ->  layer_transportation:z7
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -96,7 +96,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_transportation_merge_linestring_gen3  ->  layer_transportation:z8
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -111,7 +111,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_highway_linestring_gen2  ->  layer_transportation:z10
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -126,7 +126,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_highway_linestring_gen1  ->  layer_transportation:z11
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, NULL AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -143,7 +143,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_highway_linestring       ->  layer_transportation:z14_
         SELECT
             osm_id, geometry,
-            highway, NULL AS railway, NULL AS aerialway, NULL AS shipway,
+            highway, construction, NULL AS railway, NULL AS aerialway, NULL AS shipway,
             public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, man_made,
             layer,
@@ -158,12 +158,12 @@ indoor INT, surface TEXT) AS $$
         FROM osm_highway_linestring
         WHERE NOT is_area AND (
             zoom_level = 12 AND (
-                highway_class(highway, public_transport) NOT IN ('track', 'path', 'minor')
+                highway_class(highway, public_transport, construction) NOT IN ('track', 'path', 'minor')
                 OR highway IN ('unclassified', 'residential')
             ) AND man_made <> 'pier'
             OR zoom_level = 13
                 AND (
-                    highway_class(highway, public_transport) NOT IN ('track', 'path') AND man_made <> 'pier'
+                    highway_class(highway, public_transport, construction) NOT IN ('track', 'path') AND man_made <> 'pier'
                 OR
                     man_made = 'pier' AND NOT ST_IsClosed(geometry)
                 )
@@ -179,7 +179,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring_gen5  ->  layer_transportation:z8
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -194,7 +194,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring_gen4  ->  layer_transportation:z9
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             NULL::boolean AS is_bridge, NULL::boolean AS is_tunnel,
             NULL::boolean AS is_ford,
@@ -209,7 +209,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring_gen3  ->  layer_transportation:z10
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -222,7 +222,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring_gen2  ->  layer_transportation:z11
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -235,7 +235,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring_gen1  ->  layer_transportation:z12
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -249,7 +249,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_railway_linestring       ->  layer_transportation:z14_
         SELECT
             osm_id, geometry,
-            NULL AS highway, railway, NULL AS aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, railway, NULL AS aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -263,7 +263,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_aerialway_linestring_gen1  ->  layer_transportation:z12
         SELECT
             osm_id, geometry,
-            NULL AS highway, NULL as railway, aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, NULL as railway, aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -276,7 +276,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_aerialway_linestring       ->  layer_transportation:z14_
         SELECT
             osm_id, geometry,
-            NULL AS highway, NULL as railway, aerialway, NULL AS shipway,
+            NULL AS highway, NULL AS construction, NULL as railway, aerialway, NULL AS shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -288,7 +288,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_shipway_linestring_gen2  ->  layer_transportation:z11
         SELECT
             osm_id, geometry,
-            NULL AS highway, NULL AS railway, NULL AS aerialway, shipway,
+            NULL AS highway, NULL AS construction, NULL AS railway, NULL AS aerialway, shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -300,7 +300,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_shipway_linestring_gen1  ->  layer_transportation:z12
         SELECT
             osm_id, geometry,
-            NULL AS highway, NULL AS railway, NULL AS aerialway, shipway,
+            NULL AS highway, NULL AS construction, NULL AS railway, NULL AS aerialway, shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
@@ -313,7 +313,7 @@ indoor INT, surface TEXT) AS $$
         -- etldoc: osm_shipway_linestring       ->  layer_transportation:z14_
         SELECT
             osm_id, geometry,
-            NULL AS highway, NULL AS railway, NULL AS aerialway, shipway,
+            NULL AS highway, NULL AS construction, NULL AS railway, NULL AS aerialway, shipway,
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
diff --git a/layers/transportation/mapping.yaml b/layers/transportation/mapping.yaml
index 7d10ed4..e4e8f7b 100644
--- a/layers/transportation/mapping.yaml
+++ b/layers/transportation/mapping.yaml
@@ -45,13 +45,13 @@ generalized_tables:
 # etldoc: imposm3 -> osm_highway_linestring_gen2
   highway_linestring_gen2:
     source: highway_linestring_gen1
-    sql_filter: highway IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link') AND NOT is_area
+    sql_filter: (highway IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link') OR highway = 'construction' AND construction IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link')) AND NOT is_area
     tolerance: ZRES11
 
 # etldoc: imposm3 -> osm_highway_linestring_gen1
   highway_linestring_gen1:
     source: highway_linestring
-    sql_filter: highway IN ('motorway', 'trunk', 'primary', 'secondary', 'tertiary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary_link') AND NOT is_area AND ST_IsValid(geometry)
+    sql_filter: (highway IN ('motorway', 'trunk', 'primary', 'secondary', 'tertiary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary_link') OR highway = 'construction' AND construction IN ('motorway', 'trunk', 'primary', 'secondary', 'tertiary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link', 'tertiary_link')) AND NOT is_area AND ST_IsValid(geometry)
     tolerance: ZRES12
 
 name_field: &name
@@ -150,6 +150,9 @@ tables:
     - name: highway
       key: highway
       type: string
+    - name: construction
+      key: construction
+      type: string
     - *ref
     - *network
     - *z_order
diff --git a/layers/transportation/update_transportation_merge.sql b/layers/transportation/update_transportation_merge.sql
index 36d0931..06ef1e8 100644
--- a/layers/transportation/update_transportation_merge.sql
+++ b/layers/transportation/update_transportation_merge.sql
@@ -22,14 +22,14 @@ CREATE INDEX IF NOT EXISTS osm_highway_linestring_highway_idx
 -- Improve performance of the sql below
 CREATE INDEX IF NOT EXISTS osm_highway_linestring_highway_partial_idx
   ON osm_highway_linestring(highway)
-  WHERE highway IN ('motorway','trunk', 'primary');
+  WHERE highway IN ('motorway','trunk', 'primary', 'construction');
 
   -- etldoc: osm_highway_linestring ->  osm_transportation_merge_linestring
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring AS (
     SELECT
         (ST_Dump(geometry)).geom AS geometry,
         NULL::bigint AS osm_id,
-        highway,
+        highway, construction,
         z_order
     FROM (
       SELECT
@@ -37,7 +37,8 @@ CREATE MATERIALIZED VIEW osm_transportation_merge_linestring AS (
           highway,
           min(z_order) AS z_order
       FROM osm_highway_linestring
-      WHERE highway IN ('motorway','trunk', 'primary') AND ST_IsValid(geometry)
+      WHERE (highway IN ('motorway','trunk', 'primary') OR highway = 'construction' AND construction IN ('motorway','trunk', 'primary'))
+          AND ST_IsValid(geometry)
       group by highway
     ) AS highway_union
 );
@@ -45,61 +46,64 @@ CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_geometry_idx
   ON osm_transportation_merge_linestring USING gist(geometry);
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_highway_partial_idx
   ON osm_transportation_merge_linestring(highway)
-  WHERE highway IN ('motorway','trunk', 'primary');
+  WHERE highway IN ('motorway','trunk', 'primary', 'construction');
 
 -- etldoc: osm_transportation_merge_linestring -> osm_transportation_merge_linestring_gen3
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen3 AS (
-    SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, highway, z_order
+    SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, highway, construction, z_order
     FROM osm_transportation_merge_linestring
     WHERE highway IN ('motorway','trunk', 'primary')
+      OR highway = 'construction' AND construction IN ('motorway','trunk', 'primary')
 );
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen3_geometry_idx
   ON osm_transportation_merge_linestring_gen3 USING gist(geometry);
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen3_highway_partial_idx
   ON osm_transportation_merge_linestring_gen3(highway)
-  WHERE highway IN ('motorway','trunk', 'primary');
+  WHERE highway IN ('motorway','trunk', 'primary', 'construction');
 
 -- etldoc: osm_transportation_merge_linestring_gen3 -> osm_transportation_merge_linestring_gen4
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen4 AS (
-    SELECT ST_Simplify(geometry, 200) AS geometry, osm_id, highway, z_order
+    SELECT ST_Simplify(geometry, 200) AS geometry, osm_id, highway, construction, z_order
     FROM osm_transportation_merge_linestring_gen3
-    WHERE highway IN ('motorway','trunk', 'primary') AND ST_Length(geometry) > 50
+    WHERE (highway IN ('motorway','trunk', 'primary') OR highway = 'construction' AND construction IN ('motorway','trunk', 'primary'))
+        AND ST_Length(geometry) > 50
 );
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen4_geometry_idx
   ON osm_transportation_merge_linestring_gen4 USING gist(geometry);
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen4_highway_partial_idx
   ON osm_transportation_merge_linestring_gen4(highway)
-  WHERE highway IN ('motorway','trunk', 'primary');
+  WHERE highway IN ('motorway','trunk', 'primary', 'construction');
 
 -- etldoc: osm_transportation_merge_linestring_gen4 -> osm_transportation_merge_linestring_gen5
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen5 AS (
-    SELECT ST_Simplify(geometry, 500) AS geometry, osm_id, highway, z_order
+    SELECT ST_Simplify(geometry, 500) AS geometry, osm_id, highway, construction, z_order
     FROM osm_transportation_merge_linestring_gen4
-    WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 100
+    WHERE (highway IN ('motorway','trunk') OR highway = 'construction' AND construction IN ('motorway','trunk'))
+        AND ST_Length(geometry) > 100
 );
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_geometry_idx
   ON osm_transportation_merge_linestring_gen5 USING gist(geometry);
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen5_highway_partial_idx
   ON osm_transportation_merge_linestring_gen5(highway)
-  WHERE highway IN ('motorway', 'trunk');
+  WHERE highway IN ('motorway','trunk', 'construction');
 
 -- etldoc: osm_transportation_merge_linestring_gen5 -> osm_transportation_merge_linestring_gen6
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen6 AS (
-    SELECT ST_Simplify(geometry, 1000) AS geometry, osm_id, highway, z_order
+    SELECT ST_Simplify(geometry, 1000) AS geometry, osm_id, highway, construction, z_order
     FROM osm_transportation_merge_linestring_gen5
-    WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 500
+    WHERE (highway IN ('motorway','trunk') OR highway = 'construction' AND construction IN ('motorway','trunk')) AND ST_Length(geometry) > 500
 );
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen6_geometry_idx
   ON osm_transportation_merge_linestring_gen6 USING gist(geometry);
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen6_highway_partial_idx
   ON osm_transportation_merge_linestring_gen6(highway)
-  WHERE highway IN ('motorway','trunk');
+  WHERE highway IN ('motorway','trunk', 'construction');
 
 -- etldoc: osm_transportation_merge_linestring_gen6 -> osm_transportation_merge_linestring_gen7
 CREATE MATERIALIZED VIEW osm_transportation_merge_linestring_gen7 AS (
-    SELECT ST_Simplify(geometry, 2000) AS geometry, osm_id, highway, z_order
+    SELECT ST_Simplify(geometry, 2000) AS geometry, osm_id, highway, construction, z_order
     FROM osm_transportation_merge_linestring_gen6
-    WHERE highway IN ('motorway') AND ST_Length(geometry) > 1000
+    WHERE (highway = 'motorway' OR highway = 'construction' AND construction = 'motorway') AND ST_Length(geometry) > 1000
 );
 CREATE INDEX IF NOT EXISTS osm_transportation_merge_linestring_gen7_geometry_idx
   ON osm_transportation_merge_linestring_gen7 USING gist(geometry);