public void addVehicleToMap(char current, boolean direction, int[] position, int length){
		Vehicle vehicle;
		if(length == 3){
			vehicle = new Truck(direction, position[1], position[0], current);
		} else {
			vehicle = new Car(direction, position[1], position[0], current);
		}
		if(!vehicleMap.containsKey(current)){
			vehicleMap.put(current, vehicle);
		}
	}