public void metroNetwork() {

		System.out.println("Creating metro network...");

		// Create links along green line .....
		metro.addEdge("Greenbelt", "College Park");
		metro.addEdge("College Park", "Fort Totten");
		metro.addEdge("Fort Totten", "Judiciary Sq");
		metro.addEdge("Judiciary Sq", "L Enfant Plaza");

		// Create links along red line .....
		metro.addEdge("Fort Totten", "Silver Spring");
		metro.addEdge("Fort Totten", "Catholic University");
		metro.addEdge("Catholic University", "Union Station");
		metro.addEdge("Judiciary Sq", "Union Station");
		metro.addEdge("Judiciary Sq", "Metro Center");
		metro.addEdge("DuPont Circle", "Metro Center");

		// Create links along yellow line .....
		metro.addEdge("Judiciary Sq", "L Enfant Plaza");
		metro.addEdge("L Enfant Plaza", "National Airport");

		// Create links along orange line .....
		metro.addEdge("New Carrollton", "Stadium-Armory");
		metro.addEdge("Stadium-Armory", "L Enfant Plaza");
		metro.addEdge("L Enfant Plaza", "Smithsonian");
		metro.addEdge("Smithsonian", "Metro Center");
		metro.addEdge("Metro Center", "Rosalyn");
		metro.addEdge("Rosalyn", "Ballston-GMU");
		metro.addEdge("Ballston-GMU", "Vienna");

	}