diff --git a/jsprit-core/src/main/java/com/graphhopper/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java b/jsprit-core/src/main/java/com/graphhopper/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
index 661d8282..2c2db460 100644
--- a/jsprit-core/src/main/java/com/graphhopper/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
+++ b/jsprit-core/src/main/java/com/graphhopper/jsprit/core/algorithm/state/UpdateVehicleDependentPracticalTimeWindows.java
@@ -69,7 +69,7 @@ public class UpdateVehicleDependentPracticalTimeWindows implements RouteVisitor,
 
     private VehicleRoute route;
 
-    private double[] latest_arrTimes_at_prevAct;
+    protected double[] latest_arrTimes_at_prevAct;
 
     private Location[] location_of_prevAct;
 
@@ -109,7 +109,7 @@ public class UpdateVehicleDependentPracticalTimeWindows implements RouteVisitor,
             Location prevLocation = location_of_prevAct[vehicle.getVehicleTypeIdentifier().getIndex()];
             double potentialLatestArrivalTimeAtCurrAct = latestArrTimeAtPrevAct - transportCosts.getBackwardTransportTime(activity.getLocation(), prevLocation,
                 latestArrTimeAtPrevAct, route.getDriver(), vehicle) - activityCosts.getActivityDuration(prev, activity, latestArrTimeAtPrevAct, route.getDriver(), route.getVehicle());
-            double latestArrivalTime = Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
+            double latestArrivalTime = getLatestArrival(activity, potentialLatestArrivalTimeAtCurrAct);
             if (latestArrivalTime < activity.getTheoreticalEarliestOperationStartTime()) {
                 stateManager.putTypedInternalRouteState(route, vehicle, InternalStates.SWITCH_NOT_FEASIBLE, true);
             }
@@ -119,6 +119,10 @@ public class UpdateVehicleDependentPracticalTimeWindows implements RouteVisitor,
         }
     }
 
+    protected double getLatestArrival(TourActivity activity, double potentialLatestArrivalTimeAtCurrAct) {
+        return Math.min(activity.getTheoreticalLatestOperationStartTime(), potentialLatestArrivalTimeAtCurrAct);
+    }
+
 
     public void finish() {
     }