Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 9435)
+++ trunk/data/validator/deprecated.mapcss	(revision 9506)
@@ -342,4 +342,5 @@
 
 /* see #10661, #10837, #11737 */
+*[traffic_calming=yes],
 *[access=restricted],
 *[barrier=yes],