diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Activities.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Activities.java
new file mode 100644
index 00000000..89c80d8c
--- /dev/null
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Activities.java
@@ -0,0 +1,12 @@
+package jsprit.core.problem.solution.route.activity;
+
+class Activities {
+	
+	public static String round(double time) {
+		if (time == Double.MAX_VALUE) {
+			return "oo";
+		}
+		return "" + Math.round(time);
+	}
+
+}
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverService.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverService.java
index 2380ae14..95ca75a0 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverService.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverService.java
@@ -90,9 +90,11 @@ public final class DeliverService implements DeliveryActivity{
 		return delivery;
 	}
 
-	@Override
 	public String toString() {
-		return "[act="+getName()+"][capDemand="+getCapacityDemand()+"][loc="+getLocationId()+"]";
+		return "[type="+getName()+"][locationId=" + getLocationId() 
+		+ "][size=" + getSize().toString()
+		+ "][twStart=" + Activities.round(getTheoreticalEarliestOperationStartTime())
+		+ "][twEnd=" + Activities.round(getTheoreticalLatestOperationStartTime()) + "]";
 	}
 
 	@Override
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverShipment.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverShipment.java
index 6f8ec81b..22376f41 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverShipment.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/DeliverShipment.java
@@ -90,10 +90,12 @@ public final class DeliverShipment implements DeliveryActivity{
 	public TourActivity duplicate() {
 		return new DeliverShipment(this);
 	}
-
-	@Override
+	
 	public String toString() {
-		return "[act="+getName()+"][loc="+getLocationId()+"]";
+		return "[type="+getName()+"][locationId=" + getLocationId() 
+		+ "][size=" + getSize().toString()
+		+ "][twStart=" + Activities.round(getTheoreticalEarliestOperationStartTime())
+		+ "][twEnd=" + Activities.round(getTheoreticalLatestOperationStartTime()) + "]";
 	}
 
 	@Override
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/End.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/End.java
index daa73113..8280e00d 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/End.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/End.java
@@ -113,17 +113,10 @@ public final class End implements TourActivity {
 	@Override
 	public String toString() {
 		return "[type="+getName()+"][locationId=" + getLocationId() 
-		+ "][twStart=" + round(theoretical_earliestOperationStartTime)
-		+ "][twEnd=" + round(theoretical_latestOperationStartTime) + "]";
+		+ "][twStart=" + Activities.round(theoretical_earliestOperationStartTime)
+		+ "][twEnd=" + Activities.round(theoretical_latestOperationStartTime) + "]";
 	}
 	
-	private String round(double time) {
-		if (time == Double.MAX_VALUE) {
-			return "oo";
-		}
-		return "" + Math.round(time);
-	}
-
 	@Override
 	public String getName() {
 		return "end";
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupService.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupService.java
index 806b2500..7ae5fbb9 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupService.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupService.java
@@ -91,10 +91,12 @@ public final class PickupService implements PickupActivity{
 	public int getCapacityDemand() {
 		return pickup.getCapacityDemand();
 	}
-
-	@Override
+	
 	public String toString() {
-		return "[act="+getName()+"][capDemand="+getCapacityDemand()+"][loc="+getLocationId()+"]";
+		return "[type="+getName()+"][locationId=" + getLocationId() 
+		+ "][size=" + getSize().toString()
+		+ "][twStart=" + Activities.round(getTheoreticalEarliestOperationStartTime())
+		+ "][twEnd=" + Activities.round(getTheoreticalLatestOperationStartTime()) + "]";
 	}
 
 	@Override
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupShipment.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupShipment.java
index 534ceede..277985a9 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupShipment.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/PickupShipment.java
@@ -87,9 +87,11 @@ public final class PickupShipment implements PickupActivity{
 		return new PickupShipment(this);
 	}
 	
-	@Override
 	public String toString() {
-		return "[act="+getName()+"][loc="+getLocationId()+"]";
+		return "[type="+getName()+"][locationId=" + getLocationId() 
+		+ "][size=" + getSize().toString()
+		+ "][twStart=" + Activities.round(getTheoreticalEarliestOperationStartTime())
+		+ "][twEnd=" + Activities.round(getTheoreticalLatestOperationStartTime()) + "]";
 	}
 
 	@Override
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/ServiceActivity.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/ServiceActivity.java
index cf354c18..21742800 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/ServiceActivity.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/ServiceActivity.java
@@ -144,10 +144,15 @@ public class ServiceActivity implements JobActivity{
 		return service;
 	}
 
+	
+	@Override
 	public String toString() {
-		return "[type="+getName()+"][service="+this.service+"]";
+		return "[type="+getName()+"][locationId=" + getLocationId() 
+		+ "][size=" + getSize().toString()
+		+ "][twStart=" + Activities.round(getTheoreticalEarliestOperationStartTime())
+		+ "][twEnd=" + Activities.round(getTheoreticalLatestOperationStartTime()) + "]";
 	}
-
+	
 	@Override
 	public String getName() {
 		return service.getType();
diff --git a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Start.java b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Start.java
index 0b8bc885..ef8fdefa 100644
--- a/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Start.java
+++ b/jsprit-core/src/main/java/jsprit/core/problem/solution/route/activity/Start.java
@@ -107,18 +107,10 @@ public final class Start implements TourActivity {
 	@Override
 	public String toString() {
 		return "[type="+getName()+"][locationId=" + getLocationId() 
-		+ "][twStart=" + round(theoretical_earliestOperationStartTime)
-		+ "][twEnd=" + round(theoretical_latestOperationStartTime) + "]";
+		+ "][twStart=" + Activities.round(theoretical_earliestOperationStartTime)
+		+ "][twEnd=" + Activities.round(theoretical_latestOperationStartTime) + "]";
 	}
 	
-	private String round(double time) {
-		if (time == Double.MAX_VALUE) {
-			return "oo";
-		}
-		return "" + Math.round(time);
-	}
-
-
 	@Override
 	public String getName() {
 		return "start";