public void removeTaxiwayParkingModel(TaxiwayParkingModel taxiwayParkingModel) {
taxiwayParkingModel.removePropertyChangeListener(this);
taxiwayParkingHM.remove(new Integer(taxiwayParkingModel.getIndex()));
for (int i = taxiwayPathAL.size() - 1; i >= 0; i--)
if (((TaxiwayPathModel) taxiwayPathAL.get(i)).getType().equals("PARKING")
&& ((TaxiwayPathModel) taxiwayPathAL.get(i)).getEnd() == taxiwayParkingModel.getIndex())
taxiwayPathAL.remove(i);
}
public void addTaxiwayParkingModel(TaxiwayParkingModel taxiwayParkingModel) {
taxiwayParkingModel.addPropertyChangeListener(this);
taxiwayParkingHM.put(new Integer(taxiwayParkingModel.getIndex()), taxiwayParkingModel);
}