if (Fork () == 0) {
			// car 2
			Delay (50);
			driveRoad (WEST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			// car 3
			Delay (100);
			driveRoad (EAST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			// car 2
			Delay (150);
			driveRoad (WEST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			// car 3
			Delay (200);
			driveRoad (EAST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			// car 2
			Delay (250);
			driveRoad (WEST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			// car 3
			Delay (300);
			driveRoad (EAST, 60);
			Exit ();
		}

		driveRoad(WEST, 5);

		Delay(10000);

		if (Fork () == 0) {
			Delay (1200);			// car 2
			driveRoad (WEST, 60);
			Exit ();
		}
		if (Fork () == 0) {
			Delay (600);			// car 3
			driveRoad (WEST, 50);
			Exit ();
		}
		if (Fork () == 0) {
			Delay (800);			// car 4
			driveRoad (EAST, 30);
			Exit ();
		}

		driveRoad (EAST, 40);			// car 1

		Delay(3000);

		if (Fork() == 0) {
			Delay(600);
			driveRoad(WEST, 40);
			Exit();
		}
		if (Fork() == 0) {
			Delay(900);
			driveRoad(EAST, 40);
			Exit();
		}
		if (Fork() == 0) {
			Delay(1200);
			driveRoad(WEST, 40);
			Exit();
		}

		driveRoad(WEST, 40);