diff --git a/src/edu/kit/informatik/model/RailwayNetwork.java b/src/edu/kit/informatik/model/RailwayNetwork.java
index ea71096..8d919e2 100644
--- a/src/edu/kit/informatik/model/RailwayNetwork.java
+++ b/src/edu/kit/informatik/model/RailwayNetwork.java
@@ -2,7 +2,6 @@ package edu.kit.informatik.model;
 
 import edu.kit.informatik.ui.InvalidInputException;
 
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedList;
diff --git a/src/edu/kit/informatik/model/Track.java b/src/edu/kit/informatik/model/Track.java
index 550d7f8..28a6733 100644
--- a/src/edu/kit/informatik/model/Track.java
+++ b/src/edu/kit/informatik/model/Track.java
@@ -120,10 +120,20 @@ public final class Track extends Rail {
                 || connectsTo(position) && getDirectionFrom(position).equals(direction);
     }
 
+    /**
+     * Get the start position of this track.
+     *
+     * @return start position of this track
+     */
     public Vector2D getStart() {
         return new Vector2D(start);
     }
 
+    /**
+     * Get the end position of this track.
+     *
+     * @return end position of this track
+     */
     public Vector2D getEnd() {
         return new Vector2D(end);
     }