diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/marathon/MarathonArcInspector.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/marathon/MarathonArcInspector.java
new file mode 100644
index 0000000..d6b5eaf
--- /dev/null
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/marathon/MarathonArcInspector.java
@@ -0,0 +1,62 @@
+package org.insa.graphs.algorithm.marathon;
+
+import java.util.EnumSet;
+
+import org.insa.graphs.algorithm.AbstractInputData.Mode;
+import org.insa.graphs.algorithm.ArcInspector;
+import org.insa.graphs.model.AccessRestrictions.AccessMode;
+import org.insa.graphs.model.AccessRestrictions.AccessRestriction;
+import org.insa.graphs.model.Arc;
+import org.insa.graphs.model.Path;
+
+public class MarathonArcInspector implements ArcInspector{
+    static final int maxPedestrianSpeed = 10 ; // ie a 4:13 time
+
+    private Path path;
+    private Arc currentArc;
+
+    public MarathonArcInspector(Path path, Arc currentArc) {
+        this.path = path;
+        this.currentArc = currentArc;
+    }
+
+    /*
+     * Checks whether the arc is accessible and whether it would create a cycle,
+     * leading to unhappy marathoners.
+     */
+    @Override
+    public boolean isAllowed(Arc arc) {
+        /*final boolean runnersCanAccess = arc.getRoadInformation().getAccessRestrictions()
+                .isAllowedForAny(AccessMode.FOOT, EnumSet.complementOf(EnumSet
+                        .of(AccessRestriction.FORBIDDEN, AccessRestriction.PRIVATE)));*/
+        final boolean runnersCanAccess = true;
+        final boolean isCurrentArc = arc.getOrigin().equals(currentArc.getOrigin())
+                                    && arc.getDestination().equals(currentArc.getDestination());
+        final boolean passesThroughOrigin = arc.getDestination().equals(path.getArcs().get(0).getOrigin());
+
+        boolean createsCycle = false;
+        for (Arc pathArc : this.path.getArcs()) {
+            if (arc.getDestination().equals(pathArc.getDestination())
+                && !arc.getDestination().equals(currentArc.getDestination()))
+                createsCycle = true;
+        }
+
+        return runnersCanAccess && !isCurrentArc && !passesThroughOrigin && !createsCycle;
+    }
+
+    @Override
+    public double getCost(Arc arc) {
+        return arc.getLength();
+    }
+
+    @Override
+    public String toString() {
+        return "MarathonArcInspector";
+    }
+
+    @Override
+    public Mode getMode() {
+        return Mode.LENGTH;
+    }
+
+}