docs: protected void initializeElements() {
  		final BusItinerary itinerary = getBusItinerary();
  		if (itinerary != null) {
  			int i = 0;
  			for (final BusItineraryHalt halt : itinerary.busHalts()) {
  				onBusItineraryHaltAdded(halt, i, null);
  				++i;
  			}
  		}
  	}