public void setPassengerCurCount(int passengerCount)
			throws CarriageException {
		if ((passengerCount >= 0) && (passengerCount <= this.passengerMaxCount)) {
			this.passengerCurCount = passengerCount;
		} else {
			throw new CarriageException(
					"Current passenger count is out of range [0,"
							+ this.passengerMaxCount + "]");
		}
	}