First graph displays it's data as desired.

src/main/java/seng202/group9/GUI/RouteAnalyser.java

@@ -0,0 +1,80 @@
+package seng202.group9.GUI;
+
+import javafx.collections.FXCollections;
+import javafx.fxml.FXML;
+import javafx.scene.chart.BarChart;
+import javafx.scene.chart.CategoryAxis;
+import javafx.scene.chart.NumberAxis;
+import javafx.scene.chart.XYChart;
+import javafx.scene.control.Alert;
+import javafx.scene.control.TableColumn;
+import javafx.scene.control.TableView;
+import javafx.scene.control.TextField;
+import javafx.scene.control.cell.PropertyValueFactory;
+import seng202.group9.Controller.App;
+import seng202.group9.Controller.Dataset;
+import seng202.group9.Core.Route;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+/**
+ * Created by michael on 16/09/2016.
+ */
+public class RouteAnalyser extends MenuController {
+    @FXML
+    private BarChart analyserGraph;
+
+    App parent;
+    private ArrayList<Route> current_routes;
+
+    public void setApp(App parent){
+        this.parent = parent;
+    }
+
+    private Dataset Data = null;
+    private HashMap<String, ArrayList> useddata = new HashMap<String, ArrayList>();
+
+    public void build_graph(Dataset current_data){
+        current_routes = current_data.getRoutes();
+        datasetup(current_routes);
+        XYChart.Series seriesArivals = new XYChart.Series();
+        XYChart.Series seriesDeparts = new XYChart.Series();
+        seriesArivals.setName("Arriving routes");
+        seriesDeparts.setName("Departs routes");
+        for (String airport : useddata.keySet()){
+            ArrayList<Integer> temp = useddata.get(airport);
+            seriesArivals.getData().add(new XYChart.Data(airport,temp.get(0)));
+            seriesDeparts.getData().add(new XYChart.Data(airport,temp.get(1)));
+        }
+        analyserGraph.getData().addAll(seriesArivals,seriesDeparts);
+    }
+
+    private void datasetup(ArrayList<Route> current_routes){
+        for (Route entry : current_routes){
+            String departs = entry.getDepartureAirport();
+            String arives = entry.getArrivalAirport();
+            if (useddata.containsKey(departs)){
+                ArrayList<Integer> temp = useddata.get(departs);
+                temp.add(1,temp.get(1)+1);
+                useddata.replace(departs,temp);
+            }else {
+                ArrayList<Integer> temp = new ArrayList<Integer>(2);
+                temp.add(0);
+                temp.add(1);
+                useddata.put(departs,temp);
+            }
+            if (useddata.containsKey(arives)){
+                ArrayList<Integer> temp = useddata.get(arives);
+                temp.add(0,temp.get(0)+1);
+                useddata.replace(arives,temp);
+            }else {
+                ArrayList<Integer> temp = new ArrayList<Integer>(2);
+                temp.add(1);
+                temp.add(0);
+                useddata.put(arives,temp);
+            }
+        }
+    }
+}

src/main/java/seng202/group9/GUI/RouteRDController.java

@@ -105,4 +105,15 @@ public class RouteRDController extends MenuController {
             alert.showAndWait();
         }
     }
+    public void analyse_Button() {
+        try {
+            RouteAnalyser graphController = (RouteAnalyser)
+                    parent.replaceSceneContent("route_analyser.fxml");
+            graphController.setApp(parent);
+            graphController.build_graph(theDataSet);
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 }