diff --git a/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/ambassador/simulation/TrafficManagementCenterUnit.java b/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/ambassador/simulation/TrafficManagementCenterUnit.java
index f11738fb..371ac939 100644
--- a/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/ambassador/simulation/TrafficManagementCenterUnit.java
+++ b/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/ambassador/simulation/TrafficManagementCenterUnit.java
@@ -178,17 +178,32 @@ private boolean handleEventResource(Object resource) {
         return false;
     }
 
-    private static class ChangeLaneStateImpl implements ChangeLaneState {
+    private static class ChangeLaneStateBaseImpl {
 
-        private final AbstractSimulationUnit unit;
+        final AbstractSimulationUnit unit;
+
+        private ChangeLaneStateBaseImpl(AbstractSimulationUnit unit) {
+            this.unit = unit;
+        }
+
+        void sendInteractionQuietly(Interaction interaction) {
+            try {
+                unit.sendInteractionToRti(interaction);
+            } catch (RuntimeException e) {
+                unit.getOsLog().error("Could not send interaction", e);
+            }
+        }
+    }
+
+    private static class ChangeLaneStateImpl extends ChangeLaneStateBaseImpl implements ChangeLaneState {
 
         private final String edgeId;
         private final int laneIndex;
 
         private ChangeLaneStateImpl(String edgeId, int laneIndex, AbstractSimulationUnit unit) {
+            super(unit);
             this.edgeId = edgeId;
             this.laneIndex = laneIndex;
-            this.unit = unit;
         }
 
         @Override
@@ -217,42 +232,22 @@ public ChangeLaneState closeOnlyForVehicleClasses(VehicleClass... disallowVehicl
             return this;
         }
 
-        @Override
-        public ChangeLaneState closeForAll() {
-            return closeOnlyForVehicleClasses(VehicleClass.values());
-        }
-
-        @Override
-        public ChangeLaneState openForAll() {
-            return openOnlyForVehicleClasses(VehicleClass.values());
-        }
-
         @Override
         public ChangeLaneState setMaxSpeed(double maxSpeedMs) {
             sendInteractionQuietly(new LanePropertyChange(unit.getSimulationTime(), edgeId, laneIndex, null, null, maxSpeedMs));
             return this;
         }
-
-        private void sendInteractionQuietly(Interaction interaction) {
-            try {
-                unit.sendInteractionToRti(interaction);
-            } catch (RuntimeException e) {
-                unit.getOsLog().error("Could not send interaction", e);
-            }
-        }
     }
 
-    private static class ChangeVariableMessageSignStateImpl implements ChangeLaneState {
-
-        private final AbstractSimulationUnit unit;
+    private static class ChangeVariableMessageSignStateImpl extends ChangeLaneStateBaseImpl implements ChangeLaneState {
 
         private final String signId;
         private final int laneIndex;
 
         private ChangeVariableMessageSignStateImpl(String signId, int laneIndex, AbstractSimulationUnit unit) {
+            super(unit);
             this.signId = signId;
             this.laneIndex = laneIndex;
-            this.unit = unit;
         }
 
         @Override
@@ -279,16 +274,6 @@ public ChangeLaneState closeOnlyForVehicleClasses(VehicleClass... disallowVehicl
             return openOnlyForVehicleClasses(remaining.toArray(new VehicleClass[remaining.size()]));
         }
 
-        @Override
-        public ChangeLaneState closeForAll() {
-            return closeOnlyForVehicleClasses(VehicleClass.values());
-        }
-
-        @Override
-        public ChangeLaneState openForAll() {
-            return openOnlyForVehicleClasses(VehicleClass.values());
-        }
-
         @Override
         public ChangeLaneState setMaxSpeed(double maxSpeedMs) {
             if (laneIndex < 0) {
@@ -312,12 +297,5 @@ public ChangeLaneState setMaxSpeed(double maxSpeedMs) {
             return this;
         }
 
-        private void sendInteractionQuietly(Interaction interaction) {
-            try {
-                unit.sendInteractionToRti(interaction);
-            } catch (RuntimeException e) {
-                unit.getOsLog().error("Could not send interaction", e);
-            }
-        }
     }
 }
\ No newline at end of file
diff --git a/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/app/api/os/TrafficManagementCenterOperatingSystem.java b/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/app/api/os/TrafficManagementCenterOperatingSystem.java
index a92d1715..e5e54712 100644
--- a/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/app/api/os/TrafficManagementCenterOperatingSystem.java
+++ b/fed/mosaic-application/src/main/java/org/eclipse/mosaic/fed/application/app/api/os/TrafficManagementCenterOperatingSystem.java
@@ -90,13 +90,17 @@ interface ChangeLaneState {
          * Closes the lane for all vehicle classes.
          */
         @SuppressWarnings("UnusedReturnValue")
-        ChangeLaneState closeForAll();
+        default ChangeLaneState closeForAll(){
+            return closeOnlyForVehicleClasses(VehicleClass.values());
+        }
 
         /**
          * Opens the lane for all vehicle classes.
          */
         @SuppressWarnings("UnusedReturnValue")
-        ChangeLaneState openForAll();
+        default ChangeLaneState openForAll() {
+            return openOnlyForVehicleClasses(VehicleClass.values());
+        }
 
         /**
          * Sets the maximum allowed speed of the lane to the given value.