Method in route getFastestTimeOfTravel(Vehicle):

- Every subclass of Vehicle needs to return
    the max of it self.

    - Calculate best case (empty streets) for
    a given vehcile using a Route.

src/Bus.java

@@ -14,6 +14,11 @@ public class Bus extends CivilVehicle {
         generateUID();
     }
 
+    @Override
+    public int getMaxSpeed() {
+        return MAX_FORWARD;
+    }
+
     @Override
     public void arrive() {
         super.arrive();

src/Route.java

@@ -34,6 +34,14 @@ public class Route {
         return totalLength;
     }
 
+    public String getFastestTimeOfTravel(Vehicle vehicle) {
+        double totalLength = getTotalLength();
+        int maxSpeed = vehicle.getMaxSpeed();
+        int totalTime = (int) (totalLength/maxSpeed);
+        String result = String.format("%2d:%2d",totalTime % 60, totalTime /60);
+        return result;
+    }
+
     public District getHotelArea() {
         return hotelArea;
     }

src/SUV.java

@@ -10,6 +10,11 @@ public class SUV extends CivilVehicle {
         generateUID();
     }
 
+    @Override
+    public int getMaxSpeed() {
+        return MAX_FORWARD;
+    }
+
     public int getTimeToFix(){
     	return TIME_TO_FIX; 
     }

src/Sedan.java

@@ -10,10 +10,9 @@ public class Sedan extends CivilVehicle {
         super(vehicleSize);
         generateUID();
     }
+
     @Override
-    public int getTimeToFix(){ return TIME_TO_FIX; 
-    
-    }
+    public int getTimeToFix(){ return TIME_TO_FIX; }
     
     private void generateUID() {
     	numeberOfSedan++;
@@ -24,7 +23,9 @@ public class Sedan extends CivilVehicle {
     public String getUID(){
         return this.UID;
     }
-    
-
 
+    @Override
+    public int getMaxSpeed() {
+        return MAX_FORWARD;
+    }
 }

src/TrafficPoliceCar.java

@@ -23,4 +23,9 @@ public class TrafficPoliceCar extends Vehicle implements CanBeGovtCar, CanFixAcc
     public String getGovtID() {
     	return this.TPC_UID;
     }
+
+    @Override
+    public int getMaxSpeed() {
+        return Sedan.MAX_FORWARD;
+    }
 }

src/Truck.java

@@ -3,6 +3,12 @@ public class Truck extends CivilVehicle {
 	private String UID;
 	private static int numeberOfTruck;
     private final int TIME_TO_FIX = 20; //in minutes
+
+    @Override
+    public int getMaxSpeed() {
+        return Bus.MAX_FORWARD;
+    }
+
     public Truck(double vehicleSize){
         super(vehicleSize);
         generateUID();

src/Vehicle.java

@@ -12,6 +12,8 @@ public abstract class Vehicle {
     private Date timeStartedMoving;
     private Date timeOfArrival;
 
+    public abstract int getMaxSpeed();
+
     public Vehicle(double vehicleSize){
         setVehicleSize(vehicleSize);
     }