@Override
	public String toString() {
		return "CarPark [count: " + totalVehicleCount + " numCars: "
				+ getNumCars() + " numSmallCars: " + getNumSmallCars()
				+ " numMotorCycles: " + getNumMotorCycles() + " queue: "
				+ numVehiclesInQueue() + " numDissatisfied: "
				+ dissatifiedVehicles.size() + " past: " + past.size() + "]";
	}