Index: trunk/src/org/openstreetmap/josm/data/validation/tests/Highways.java
===================================================================
--- trunk/src/org/openstreetmap/josm/data/validation/tests/Highways.java	(revision 19399)
+++ trunk/src/org/openstreetmap/josm/data/validation/tests/Highways.java	(revision 19401)
@@ -61,5 +61,5 @@
     private static final Set<String> KNOWN_SOURCE_MAXSPEED_CONTEXTS = new HashSet<>(Arrays.asList(
             "urban", "rural", "zone", "zone10", "zone:10", "zone20", "zone:20", "zone30", "zone:30", "zone40", "zone:40", "zone60", "zone:60",
-            "nsl_single", "nsl_dual", "motorway", "trunk", "living_street", "bicycle_road"));
+            "nsl_single", "nsl_dual", "motorway", "trunk", "living_street", "bicycle_road", "expressway"));
 
     private static final Set<String> ISO_COUNTRIES = new HashSet<>(Arrays.asList(Locale.getISOCountries()));