diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/ArcInspectorFactory.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/ArcInspectorFactory.java
index ab42c7d..ddbcb63 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/ArcInspectorFactory.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/ArcInspectorFactory.java
@@ -12,6 +12,137 @@ import org.insa.graphs.model.AccessRestrictions.AccessRestriction;
 
 public class ArcInspectorFactory {
 
+
+    // No filter (all arcs allowed):
+    static ArcInspector allArcsL = new ArcInspector() {
+        @Override
+        public boolean isAllowed(Arc arc) {
+            return true;
+        }
+
+        @Override
+        public double getCost(Arc arc) {
+            return arc.getLength();
+        }
+
+        /*
+        @Override
+        public int getMaximumSpeed() {
+            return GraphStatistics.NO_MAXIMUM_SPEED;
+        }
+        */
+
+        @Override
+        public Mode getMode() {
+            return Mode.LENGTH;
+        }
+
+        @Override
+        public String toString() {
+            return "Shortest path, all roads allowed";
+        }
+    } ;
+
+     // Only road allowed for cars and length:
+     static ArcInspector forCarsL = new ArcInspector() {
+      
+        @Override
+        public boolean isAllowed(Arc arc) {
+            return arc.getRoadInformation().getAccessRestrictions()
+                    .isAllowedForAny(AccessMode.MOTORCAR, EnumSet.complementOf(EnumSet
+                            .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
+        }
+
+        @Override
+        public double getCost(Arc arc) {
+            return arc.getLength();
+        }
+
+        /*
+        @Override
+        public int getMaximumSpeed() {
+            return GraphStatistics.NO_MAXIMUM_SPEED;
+        }
+        */
+
+        @Override
+        public Mode getMode() {
+            return Mode.LENGTH;
+        }
+
+        @Override
+        public String toString() {
+            return "Shortest path, only roads open for cars";
+        }
+     } ;
+
+     // Only road allowed for cars and time:
+     static ArcInspector forCarsT = new ArcInspector() {
+
+        @Override
+        public boolean isAllowed(Arc arc) {
+            return true;
+        }
+
+        @Override
+        public double getCost(Arc arc) {
+            return arc.getMinimumTravelTime() ;
+        }
+
+        /*
+        @Override
+        public int getMaximumSpeed() {
+            return GraphStatistics.NO_MAXIMUM_SPEED;
+        }
+        */
+
+        @Override
+        public Mode getMode() {
+            return Mode.TIME ;
+        }
+
+        @Override
+        public String toString() {
+            return "Fastest path, all roads allowed";
+        }
+    } ;
+
+     // Non-private roads for pedestrian and bicycle:
+    static ArcInspector forBicyclesT = new ArcInspector() {
+        
+        static final int maxPedestrianSpeed = 5 ;
+        
+        @Override
+        public boolean isAllowed(Arc arc) {
+            return arc.getRoadInformation().getAccessRestrictions()
+                    .isAllowedForAny(AccessMode.FOOT, EnumSet.complementOf(EnumSet
+                            .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
+        }
+
+        @Override
+        public double getCost(Arc arc) {
+            return arc.getTravelTime(
+                    Math.min(maxPedestrianSpeed, arc.getRoadInformation().getMaximumSpeed()));
+        }
+
+        @Override
+        public String toString() {
+            return "Fastest path for pedestrian";
+        }
+
+        /*
+        @Override
+        public int getMaximumSpeed() {
+            return 5;
+        }
+        */
+        
+        @Override
+        public Mode getMode() {
+            return Mode.TIME;
+        }
+    } ;
+
     /**
      * @return List of all arc filters in this factory.
      */
@@ -20,165 +151,11 @@ public class ArcInspectorFactory {
 
         // Common filters:
 
-        // No filter (all arcs allowed):
-        filters.add(new ArcInspector() {
-            @Override
-            public boolean isAllowed(Arc arc) {
-                return true;
-            }
-
-            @Override
-            public double getCost(Arc arc) {
-                return arc.getLength();
-            }
-
-            /*
-            @Override
-            public int getMaximumSpeed() {
-                return GraphStatistics.NO_MAXIMUM_SPEED;
-            }
-            */
-
-            @Override
-            public Mode getMode() {
-                return Mode.LENGTH;
-            }
-
-            @Override
-            public String toString() {
-                return "Shortest path, all roads allowed";
-            }
-        });
-
-        // Only road allowed for cars and length:
-        filters.add(new ArcInspector() {
-            @Override
-            public boolean isAllowed(Arc arc) {
-                return arc.getRoadInformation().getAccessRestrictions()
-                        .isAllowedForAny(AccessMode.MOTORCAR, EnumSet.complementOf(EnumSet
-                                .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
-            }
-
-            @Override
-            public double getCost(Arc arc) {
-                return arc.getLength();
-            }
-
-            /*
-            @Override
-            public int getMaximumSpeed() {
-                return GraphStatistics.NO_MAXIMUM_SPEED;
-            }
-            */
-
-            @Override
-            public Mode getMode() {
-                return Mode.LENGTH;
-            }
-
-            @Override
-            public String toString() {
-                return "Shortest path, only roads open for cars";
-            }
-        });
-
-        // Only road allowed for cars and time:
-
-        filters.add(new ArcInspector() {
-            @Override
-            public boolean isAllowed(Arc arc) {
-                return true;
-            }
-
-            @Override
-            public double getCost(Arc arc) {
-                return arc.getMinimumTravelTime();
-            }
-
-            /*
-            @Override
-            public int getMaximumSpeed() {
-                return GraphStatistics.NO_MAXIMUM_SPEED;
-            }
-            */
-
-            @Override
-            public Mode getMode() {
-                return Mode.TIME;
-            }
-
-            @Override
-            public String toString() {
-                return "Fastest path, all roads allowed";
-            }
-        });
-
-        filters.add(new ArcInspector() {
-            @Override
-            public boolean isAllowed(Arc arc) {
-                return arc.getRoadInformation().getAccessRestrictions()
-                        .isAllowedForAny(AccessMode.MOTORCAR, EnumSet.complementOf(EnumSet
-                                .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
-            }
-
-            @Override
-            public double getCost(Arc arc) {
-                return arc.getMinimumTravelTime();
-            }
-
-            /*
-            @Override
-            public int getMaximumSpeed() {
-                return GraphStatistics.NO_MAXIMUM_SPEED;
-            }
-            */
-            
-            @Override
-            public Mode getMode() {
-                return Mode.TIME;
-            }
-
-            @Override
-            public String toString() {
-                return "Fastest path, only roads open for cars";
-            }
-        });
-
-        // Non-private roads for pedestrian and bicycle:
-        filters.add(new ArcInspector() {
-
-            static final int maxPedestrianSpeed = 5 ;
-        	
-            @Override
-            public boolean isAllowed(Arc arc) {
-                return arc.getRoadInformation().getAccessRestrictions()
-                        .isAllowedForAny(AccessMode.FOOT, EnumSet.complementOf(EnumSet
-                                .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));
-            }
-
-            @Override
-            public double getCost(Arc arc) {
-                return arc.getTravelTime(
-                        Math.min(maxPedestrianSpeed, arc.getRoadInformation().getMaximumSpeed()));
-            }
-
-            @Override
-            public String toString() {
-                return "Fastest path for pedestrian";
-            }
-
-            /*
-            @Override
-            public int getMaximumSpeed() {
-                return 5;
-            }
-            */
-            
-            @Override
-            public Mode getMode() {
-                return Mode.TIME;
-            }
-        });
+        
+        filters.add(allArcsL) ;
+        filters.add(forCarsL) ;
+        filters.add(forCarsT) ;
+        filters.add(forBicyclesT);
 
         // Add your own filters here (do not forget to implement toString()
         // to get an understandable output!):
diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
index 2c1a239..dd66c26 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/utils/BinaryHeap.java
@@ -16,7 +16,7 @@ public class BinaryHeap<E extends Comparable<E>> implements PriorityQueue<E> {
     // Number of elements in heap.
     private int currentSize;
 
-    // The heap array.
+    // The heap array, which can be larger than currentSize.
     protected final ArrayList<E> array;
 
     /**
diff --git a/be-graphes-gui/src/main/java/org/insa/graphs/gui/drawing/components/BasicDrawing.java b/be-graphes-gui/src/main/java/org/insa/graphs/gui/drawing/components/BasicDrawing.java
index 6d51a05..5c54600 100644
--- a/be-graphes-gui/src/main/java/org/insa/graphs/gui/drawing/components/BasicDrawing.java
+++ b/be-graphes-gui/src/main/java/org/insa/graphs/gui/drawing/components/BasicDrawing.java
@@ -684,7 +684,7 @@ public class BasicDrawing extends JPanel implements Drawing {
                 // Draw arcs only if there are one-way arcs or if origin is lower than
                 // destination, avoid drawing two-ways arc twice.
                 if (arc.getRoadInformation().isOneWay()
-                        || arc.getOrigin().compareTo(arc.getDestination()) < 0) {
+                        || arc.getOrigin().getId() < arc.getDestination().getId()) {
                     drawArc(arc, palette, false);
                 }
             }
diff --git a/be-graphes-model/src/main/java/org/insa/graphs/model/Node.java b/be-graphes-model/src/main/java/org/insa/graphs/model/Node.java
index 37f20b0..cca2434 100644
--- a/be-graphes-model/src/main/java/org/insa/graphs/model/Node.java
+++ b/be-graphes-model/src/main/java/org/insa/graphs/model/Node.java
@@ -19,7 +19,7 @@ import java.util.List;
  * </p>
  *
  */
-public final class Node implements Comparable<Node> {
+public final class Node { //implements Comparable<Node> {
 
     /**
      * <p>
@@ -144,6 +144,7 @@ public final class Node implements Comparable<Node> {
         return false;
     }
 
+    // Do we really need to compare nodes ? Confusion with Label comparisons.
     /**
      * Compare the ID of this node with the ID of the given node.
      * 
@@ -151,9 +152,9 @@ public final class Node implements Comparable<Node> {
      * 
      * @see java.lang.Comparable#compareTo(java.lang.Object)
      */
-    @Override
-    public int compareTo(Node other) {
-        return Integer.compare(getId(), other.getId());
-    }
+    // @Override
+    // public int compareTo(Node other) {
+    //     return Integer.compare(getId(), other.getId());
+    // }
 
 }